From Paul.Bell@aeat.co.uk Tue Jun 2 15:13:09 1998 From: Paul.Bell@aeat.co.uk (Paul Bell) Date: Tue, 2 Jun 1998 15:13:09 +0100 Subject: NDE Mailing List Message-ID: <00054311.001268@ccgate.aeat.co.uk> Dear Sir Please can I be rmoved from the NDE mailing list thanks Paul Bell From swormley@cnde.iastate.edu Tue Jun 2 15:24:32 1998 From: swormley@cnde.iastate.edu (Sam Wormley) Date: 2 Jun 1998 14:24:32 GMT Subject: QNDE Bibliography and Abstracts Being Put On-Line Message-ID: <6l11v0$cbl$3@news.iastate.edu> Ref: http://www.cnde.iastate.edu/qnde/database/ http://www.cnde.iastate.edu:80/Excite/AT-QNDEquery.html Slowly but surely the database will fill out this summer, thanks to Iowa State University student, John Burns. Also thanks for funding from Brian Larson and Technical help from Sam Wormley. Probable order of completion: 14B 14A 13B 13A 15A 15B 16A 16B 12A 12B 11A 11B etc. ___________________________________________________ Sam Wormley - http://www.cnde.iastate.edu/cnde.html http://www.cnde.iastate.edu/qnde/qnde.html From swormley@cnde.iastate.edu Tue Jun 2 15:27:19 1998 From: swormley@cnde.iastate.edu (Sam Wormley) Date: 2 Jun 1998 14:27:19 GMT Subject: QNDE Bibliography and Abstracts Being Put On-Line References: <6l11v0$cbl$3@news.iastate.edu> Message-ID: <6l1247$cbl$4@news.iastate.edu> Sam Wormley wrote: >Ref: http://www.cnde.iastate.edu/qnde/database/ > http://www.cnde.iastate.edu:80/Excite/AT-QNDEquery.html > >Slowly but surely the database will fill out this summer, thanks >to Iowa State University student, John Burns. Also thanks for funding >from Brian Larson and Technical help from Sam Wormley. > Why can't we put the actual QNDE papers online? Because the copyright belongs to Plenum. -Sam Wormley Iowa State University From jpascente@lixi.com Tue Jun 2 13:57:46 1998 From: jpascente@lixi.com (Lixi, Inc.) Date: Tue, 02 Jun 1998 12:57:46 Subject: Composite Couplant Message-ID: <3.0.3.16.19980602125746.2b874128@mail.uss.net> Does anyone know of a water based couplant for ultrasound testing that has no chemical or oil residue? Regards, Joe From sales@meccasonics.com Wed Jun 3 12:28:22 1998 From: sales@meccasonics.com (Meccasonics) Date: 3 Jun 1998 11:28:22 GMT Subject: Composite Couplant References: <3.0.3.16.19980602125746.2b874128@mail.uss.net> Message-ID: <01bd8ee1$7e731920$da4d08c3@workhorse> > Does anyone know of a water based couplant for ultrasound testing that > has no chemical or oil residue? > There are quite a few possibilities, unfortunately, particularly in the aircraft industry, no one trusts them. Most major companies will not risk any chemicals and just use water, after all what good is an aircraft if it can't go out in the rain. Kind regards From devangm@giasbm01.vsnl.net.in Mon Jun 1 14:49:21 1998 From: devangm@giasbm01.vsnl.net.in (Devang Jariwala) Date: Mon, 1 Jun 1998 19:19:21 +0530 Subject: Pile Message-ID: <199806031252.SAA27316@giasbm01.vsnl.net.in> can anyone give me information about test are carried out on piles & equipment used for the same. Further, the name of manufactures of this instruments thanx in advance. ------------ Have a Nice Time & Enjoy ur Self ----------- Devang Jariwala 00 91 22 4378824, 4300960 (WORK) Telefax - 4374214 From tonys2@aol.com Wed Jun 3 13:50:49 1998 From: tonys2@aol.com (TonyS2) Date: 03 Jun 1998 12:50:49 GMT Subject: FS Stavely 520 thickness testers also AEC Components Message-ID: <1998060312504900.IAA28449@ladder01.news.aol.com> Leave Fax No For Details Alex Va Tony From dmackintosh@russelltech.com Wed Jun 3 20:07:49 1998 From: dmackintosh@russelltech.com (David Mackintosh) Date: Wed, 3 Jun 1998 13:07:49 -0600 Subject: NDT of water filled pipes References: <6kml0d$b2l$1@trog.dra.hmg.gb> Message-ID: <35759ef1.0@news.oanet.com> Graham: For a description of a tool that detects internal and external corrosion from the inside of the pipe, visit http://www.hydroscope.com. Cheers, David Mackintosh Graham Otter wrote in message <6kml0d$b2l$1@trog.dra.hmg.gb>... >I am new to NDT, I would like to know (in laymans terms) NDT techniques for >finding imperfections in underground water pipes. > >What sort of equipment would I need? > >Do I need to make contact with the pipe? > > >Thanks in advance > >Graham Otter > > From roger.lyon@research.natpower.co.uk Thu Jun 4 18:35:51 1998 From: roger.lyon@research.natpower.co.uk (Roger Lyon) Date: Thu, 4 Jun 1998 18:35:51 +0100 Subject: TOFD Defect Sizing Message-ID: <199806041735.AA25574@gatekeeper.research.natpower.co.uk> Colleagues, Historically, In the UK generating industry, we have always assumed that the errors associated with pulse echo defect sizing was +/- 3mm. This was largely due to work carried out by the CEGB in the 1980s. My company, like many others, are beginning to use Time of Flight Diffraction (TOFD). Can anyone tell me what the likely errors are associated with defect sizing of both cross-section and length using TOFD. Thank you in anticipation. Regards, Roger Lyon National Power PLC England From rd@ndt.net Thu Jun 4 19:28:12 1998 From: rd@ndt.net (Rolf Diederichs) Date: Thu, 4 Jun 1998 13:28:12 -0500 (CDT) Subject: TOFD Defect Sizing Message-ID: <199806041828.NAA03281@coqui.ccf.swri.edu> >Date: Thu, 4 Jun 1998 18:35:51 +0100 >To: nde@coqui.ccf.swri.edu >From: Roger Lyon >Subject: TOFD Defect Sizing > >Colleagues, > >Historically, In the UK generating industry, we have always assumed that the errors associated with pulse echo defect sizing was +/- 3mm. This was largely due to work carried out by the CEGB in the 1980s. My company, like many others, are beginning to use Time of Flight Diffraction (TOFD). Can anyone tell me what the likely errors are associated with defect sizing of both cross-section and length using TOFD. > > >Thank you in anticipation. > > >Regards, > > >Roger Lyon >National Power PLC >England The text below was extracted from http://www.ndt.net/news/tofd1297/tofd.htm. It shows that you should investigate the TOFD method very carefully before you decide to use it. ----- During the discussion Mr. A. Hecht, BASF Aktiengesellschaft, Ludwigshafen presented some recent crack sizing results performed with ultrasonic methods on a thick-walled pressure vessel weld. A manually applied ultrasonic in-service inspection revealed significant indications within the weld root. Subsequently, a p-scan inspection was applied for accurate documentation of the suspected zones. The echo amplitudes from the root section ranged as high as FBH (flat bottom hole) 3 mm + 20 dB. Service companies performed further defect analyses ("sizing") at a) specific zones with the SAFT- method and b) the total weld was tested using the TOFD method The SAFT method determined a maximum defect size of 37 mm, however the TOFD method showed a maximum defect size of only 5 mm. Based on the SAFT results the pressure vessel was taken out of service. The SAFT results were verified by destructive metallographic cut-outs, see graphic. The detected defects were surface breaking cracks within the weld-material at the vessel's inner surface. (The four test zones for the TOFD results are illustrated in the graphic as 3 mm cracks, while the service company determined a crack size of less than 3 mm.) Based on these results it is uncertain if TOFD is a reliable method for detection of cracks or sharp grooves at the inner wall of vessels or piping. Further studies will be necessary to learn more about the limitations of TOFD's application, as well as how to exploit any possible advantages (BASF Press Release). ------------------------------------------------------------ NDTnet The e-Journal of Nondestructive Testing & Ultrasonics Plus NDT online Exhibition * NDTnet - http://www.ndt.net * ------------------------------------------------------------ NDT Internet Publishing Tel: +49(0)5221-769314 Rolf Diederichs FAX: +49(0)5221-769731 Tacheniusweg 8 Email: rd@ndt.net D-32052 Herford ftp://www.ndt.net/incoming From woodhead@dial.pipex.com Fri Jun 5 10:17:26 1998 From: woodhead@dial.pipex.com (Woodhead) Date: Fri, 5 Jun 1998 10:17:26 +0100 Subject: NDT books online Message-ID: <6l8d49$r6d$1@flex.london.pipex.net> Http://www.woodhead-publishing.com From rd@ndt.net Fri Jun 5 10:56:36 1998 From: rd@ndt.net (Rolf Diederichs) Date: Fri, 5 Jun 1998 04:56:36 -0500 (CDT) Subject: NDT books online Message-ID: <199806050956.EAA09270@coqui.ccf.swri.edu> >Return-Path: >Delivered-To: echo-ultrasonic-rd@ultrasonic.de >X-Authentication-Warning: coqui.ccf.swri.edu: news set sender to nde-request@coqui.ccf.swri.edu using -f >To: nde@coqui.ccf.swri.edu >Date: Fri, 5 Jun 1998 10:17:26 +0100 >From: "Woodhead" >Organization: UUNET >Subject: NDT books online >Sender: owner-nde@coqui.ccf.swri.edu >Precedence: bulk > >Http://www.woodhead-publishing.com It's good to find Publisher Homepages on the Internet. NDTnet provided the preface and the table of contents of a new Woodhead Publishing NDT Book. The book is good! But don't expect to much information in depth. For instance the TOFD technique is explained only on one text page very briefly. http://www.ndt.net/publicat/books/halmshaw.htm Introduction to the Non-Destructive Testing of Welded Joints Second edition R Halmshaw. A comprehensive and unbiased explanation of all NDT methods and their advantages and disadvantages, this is a second edition of a much valued text. It has been updated to include all the relevant CEN European standards. It includes a number of new NDT methods and explores the main recent development in NDT: the increasing impact of computer technology and the possibilities of automated interpretations of NDT findings Contents: Visual methods; Radiographic methods; Ultrasonic methods; Magnetic methods; Penentrant methods; Electrical methods; Other methods of NDT: Acoustic emission; Optical holography; Ultrasound imaging systems; Leak testing ISBN 185573 314 5 128 pages hardback · 1997 £65.00/USS117.00, Abington Publishing Cambridge UK, email woodhead@dial.pipex.com. You may request the 1998 Welding and Joining catalogue. ------------------------------------------------------------ NDTnet The e-Journal of Nondestructive Testing & Ultrasonics Plus NDT online Exhibition * NDTnet - http://www.ndt.net * ------------------------------------------------------------ NDT Internet Publishing Tel: +49(0)5221-769314 Rolf Diederichs FAX: +49(0)5221-769731 Tacheniusweg 8 Email: rd@ndt.net D-32052 Herford ftp://www.ndt.net/incoming From nde@iname.com Fri Jun 5 12:06:54 1998 From: nde@iname.com (nde@iname.com) Date: 5 Jun 1998 11:06:54 -0000 Subject: Mr. Ray T.Ko Message-ID: <19980605110654.24389.qmail@donar.teuto.de> * This message was posted by FINDER Dear colleagues, Does anyone know Mr.Ray T. Ko,who is in the Systems Research Laboratories,Inc., and is the author of the paper: AUTOMATED EDDY CURRENT DETECTION OF FLAWS IN SHOT-PEENED TITANIUM MATERIALS. Thanks! -- -------------------==== Posted via NDT NewsWeb ====----------------------- http://www.ndt.net/newsweb/newsweb.htm Topics, Statistics, Search, Post From rd@ndt.net Fri Jun 5 12:33:18 1998 From: rd@ndt.net (Rolf Diederichs) Date: Fri, 5 Jun 1998 06:33:18 -0500 (CDT) Subject: NDTnet 06/98: The e-Journal of Nondestructive Testing & Ultrasonics Message-ID: <199806051133.GAA16888@swrinde.nde.swri.edu> NDTnet: The e-Journal of Nondestructive Testing & Ultrasonics June '98 Issue Vol.3 No.6; ISSN: 1435-4934, http://www.ndt.net _____This Month's Introduction____________________________________ We are back from the 7th ECNDT conference in Copenhagen with a full package of information. We'll publish a complete report in the July issue. Thanks to the 7th ECNDT for giving us permission to publish the ECNDT proceedings online. In July we'll provide all abstracts and in August we'll start with the full texts. The ECNDT '98 Table of Contents is already online. Part of this month's issue focuses on Railway Testing. The recent train accident shows all too clearly the importance of NDT in everyday life and its necessary to assure safety and reliability. We have some exceptional Railway Testing material in this issue which was presented at the 7th ECNDT. Mr. Schneider's article describes an UT technique which was developed to prevent such occurrences. Thanks to the miracle of electronic publishing, last month's topic S PECIAL MAY '98 EXHIBITION on Ultrasonic Flaw Detectors will continue to be open 24 hrs on the NDTnet server. We've received about 40 responses to our Survey of Ultrasonic Flaw Detectors characterizations but we'd like to present results based on a larger sampling. Please Fill out this Survey - win an NDTnet 97-96 CD-ROM! _____Articles____________________________________ • Ultrasonic Testing of Rails With Vertical Cracks - Numerical Modeling and Experimental Results Frank Schubert, Bernd Koehler (IzfP) Branch Lab EADQ, (Germany); Olga Sacharova Railway University St.Petersburg (Russia) • Ultrasonic Evaluation of Stresses in the Rims of Railroad Wheels. E. Schneider *, R. Herzer (IZFP) Saarbrücken, Germany. 7th ECNDT Copenhagen 26 29 May 1998. Hear Mr. Schneider's 20 minutes speech as Streaming Real Audio! • Monitoring of thermal stresses in continuously welded rails with ultrasonic technique. J. Szelazek, Institute of Fundamental Technical Research, Warszawa (PL) • Search NDTnet Railroad Resources - Some examples: 1997 No. 6 - June: Nondestructive testing of railroad wheels at the German Bahn AG. H. Hintze, Deutsche Bahn AG, Kirchmöser Ultrasonic Encyclopeadia: Railway Testing • Emerging Technology - Guided Wave Ultrasonics. Krautkramer's NDTimes Vol.2 No.2 Spring & Summer 98 • TURBINE ROTOR BORE CONDITION ASSESSMENT. George Montgomery,PE mont123@bellsouth.net • The Advantages of the Internet in the Field of NDT. Rolf Diederichs NDT Internet Publishing at the 7th ECNDT Copenhagen 26 - 29 May 1998. UPDATE on WELD INSPECTION Issue APRIL '98 Thanks to the American Welding Society (AWS) we can provide the update below. • The ABC's of Nondestructive Weld Examination. BY CHARLES HAYES • Automotive Industry Turns to Ultrasonics for Spot Weld Examination. Based on information provided by Panametrics, Inc., NDT Division, Waltham, Mass. _____NDTnet Exhibition ____________________________________ Visit all 26 Sponsors in the NDTnet Exhibition: This month New Exhibitor: Structural Diagnostics, Inc. |Hillger| Imasonic| INOEX| IRT| Karl-Deutsch| Kraemer| Krautkraemer| Lixi| Meraster| Metalscan| Morex| MRI| NDT Systems| Nukem| Panametrics| Philips| QMI|QMSystems| Qnet| RDtech| Siemens| SMS| Sonotron| Tektrend| _____NDTnet News - Market - Technology _____________________ News Archive: '98 - '97 - '96 - Wednesday's June 3. train accident in Eschede near Hannover, the worst in Germany in over half a century, shows all too clearly the importance of NDT in the railway industry. Germany's fastest train was traveling at 200 km/hr when it derailed and slammed into a bridge, killing more than 100 people. Preliminary investigations place blame for the accident on a broken wheel. Schneider's article in this issue describes an UT technique which was developed to prevent such occurrences. It has been reported that the train received just one day before an 20.000 Km -Inspection. During this process also the wheels have been checked ultrasonically without recognition of any defect. The Deutsche Bahn has recalled all 60 ICE I trains back for inspection. The newer ICE II will continue in operation, at a reduced speed of 160 km/hr until further notice. We will try to keep you updated on this story. Links to More of this disaster on the Internet. - EU Project defines requirements for the safety and efficiency of rail transport. IN EUROPEAN RAIL TRANSPORT The REMAINS project aims to create practical and realistic methods and tools for evaluation as RAM (Reliability, Availability and Maintainability) in railway systems. - CRDM Housing Leak sends ABB NUCLEAR POWER TEAMS into emergency mobilization. An emergency mobilization effort occurred as the result of a leaking, part length Control Rod Drive Mechanism (CRDM) Housing at a US nuclear power plant in February 1998. - Krautkramer Systems and Probes On The Worldwide WEB. The Krautkramer Web Site is online and ready to serve you with a vast array of products and services offered by Krautkramer Branson. Be sure to check out the new searchable Probe Databases, listed under Industrial Probes. For the USPC 2100 Instrument a User Forum is available to post questions and comments or you can just browse the answers to questions posted by other users. - Integrating Nondestructive Evaluation as applied in Aerospace into the High School Science Curriculum. NASA has made clear in it's mission the goals of maintaining U.S. aerospace leadership, ensuring safe global air travel, and ensuring a future generation of intelligent, qualified NASA teams. _____Departments Topics ____________________________________ Abstracts_____________________________ Exceptional we provide already 7th ECNDT abstracts for this month's railway topic - in July we'll publish all ECNDT abstracts online. NDT NewsWeb___________________________ Review of Last Month's Topics Forum ________________________________ As usual, focus of this month's issue will be the theme of our discussion. If you are interested in other ultrasonic testing topics, don't hesitate to discuss them on this forum as well. Publications__________________________ TOC: Introduction to the Non-Destructive Testing of Welded Joints Second edition R Halmshaw Virtual Library_______________________ Frequently Updated Ultrasonics by A-Z____________________ Frequently Updated Calendar of Events____________________ Frequently Updated SEP 14-18 Toronto, Canada First Pan-American Conference on NDT (PACNDT). Rolf Diederichs will visit this conference. Brijuni, Croatia, OCT 1-2 1998 MATEST'98 - International NDT Conference Upcoming Features_____________________ July '98: Report and all abstracts of the ECNDT Copenhagen Aug '98: Proceedings of the ECNDT Copenhagen starting online ------------------------------------------------------------ NDTnet The e-Journal of Nondestructive Testing & Ultrasonics Plus NDT online Exhibition * NDTnet - http://www.ndt.net * ------------------------------------------------------------ NDT Internet Publishing Tel: +49(0)5221-769314 Rolf Diederichs FAX: +49(0)5221-769731 Tacheniusweg 8 Email: rd@ndt.net D-32052 Herford ftp://www.ndt.net/incoming From swormley@cnde.iastate.edu Fri Jun 5 17:29:23 1998 From: swormley@cnde.iastate.edu (Sam Wormley) Date: 5 Jun 1998 16:29:23 GMT Subject: QNDE Conference - Snowbird, UT, July 19-24, 1998 - Preliminary Program Message-ID: <6l96d3$oi1$1@news.iastate.edu> Preliminary Program is located at: http://www.cnde.iastate.edu/qnde/qnde.html http://www.cnde.iastate.edu/qnde/qnde98/Prelimina_.PDF The 25th annual Review Of Progress in Quantitative Nondestructive Evaluation Conference will be held July 19-24, 1998, at the Snowbird Conference Center, Snowbird, Utah. Snowbird is located about 40 minutes from the Salt Lake City International Airport in Little Cottonwood Canyon. See Maps. Air carriers currently serving Salt Lake City are: America West, American, Continental, Delta, United, TWA, etc. The Review is organized by the Center for Nondestructive Evaluation at Iowa State University in cooperation with the American Society for Nondestructive Testing, the U.S. Department of Energy, the Federal Aviation Administration, the National Institute of Standards and Technology, and the National Science Foundation (Industry/University Cooperative Research Centers). ___________________________________________________ Sam Wormley - http://www.cnde.iastate.edu/cnde.html From ardente@netcom.ca Sat Jun 6 03:13:08 1998 From: ardente@netcom.ca (Carmen Ardente) Date: 05 Jun 1998 22:13:08 EDT Subject: Portable Surface Roughness Tester Message-ID: <01bd90f0$772c88c0$c651b5cf@carmenar> http://tor-pw1.netcom.ca/~ardente/index.html Surface Roughness Testers, Prices start at US$ 1200.00 ardente@netcom.ca http://tor-pw1.netcom.ca/~ardente/index.html From rd@ndt.net Sat Jun 6 19:51:24 1998 From: rd@ndt.net (Rolf Diederichs) Date: Sat, 6 Jun 1998 13:51:24 -0500 (CDT) Subject: Nondestructive testing of railroad wheels at the German Bahn AG Message-ID: <199806061851.NAA06862@swrinde.nde.swri.edu> We invite to join our recent forum discussion on NDTnet: * This article was posted by Rolf Diederichs Dear Forum participant In sad coincidence with this month's railway testing issue, Germany just last week suffered its worst railway accident in more than half a century. It is very strange that I (Rolf Diederichs) came back from the ECNDT '98 conference Copenhagen via the same route and on the same train, with topical railway material in my suitcase, only 5 days before the Eschede tragedy. The accident occurred on June 3 - just as we were putting the final touches on this month's issue. We went ahead and released the new issue, with a few additions pertinent to the accident, although it is not our intention to focus on catastrophic news (That is fully covered on the CNN webpage). We'd rather not get into speculations (with the clarity of hindsight) on what may have been the exact reason for the derailment, but we would like to see some dialogue regarding the technical background, particularly now that it has come to light that a broken wheel which was tested ultrasonically has been implicated. Let us first focus on the following two articles: 1. The ECNDT '98 presentation of E. Schneider and R. Herzer - Ultrasonic Evaluation of Stresses in the Rims of Railroad Wheels. You can also hear it in RealAudio. http://www.ndt.net/article/ecndt98/rail/schnei_e/schnei_e.htm 2. Archive 1997 No. 6 - June: Nondestructive testing of railroad wheels at the German Bahn AG H. Hintze, Deutsche Bahn AG, Kirchmöser (English summary by Rolf Diederichs) New: The complete German Version: Zerstörungsfreie Überwachung an Radsätzen der Deutschen Bahn AG. We'll have an English translation of the full version soon. This article asserts that the applied ultrasonic testing method does not effectively recognize all possible defects of the wheel. For that reason a task optimized the technique which showed first good results and plans for the necessary modifications are underway for a long term investigation at the service station in Hamburg. Our question mark: Are those investigations completed and modifications applied?? http://www.ndt.net/article/report/df97/hintze/hintze.htm It seems that there is a great degree of uncertainty regarding applied techniques for ICE wheels - Not that the technology is not available - it is! However, in-service inspection budget issues can compromise safety. Wheels must be tested economically without disassembling, but how can the dual needs of safety and economy be met? More reliable Ultrasonic techniques are used in manufacturing and refurbishing shops than in-service inspection. Mr. Hintze Deutsche Bahn AG, in his article: 'The experience of two units (since 1992 Hamburg and 1994 in Munich) showed that ultrasonic testing with this configuration could not be used. After a relatively short operation time the wheel material characteristics changed by hardening in such a way that sound was already absorbed and no evaluation could be performed by future inspection. For that reason a task force together with the FhG IzfP optimized the technique ....' This was stated at the German-French Workshop (DGZfP/Cofrend) in Aachen in April '97. There were plans to investigate the optimization in Hamburg. But what happened? Was it successful? Was it applied to Munich as well? Who knows more about this subject? We will be looking into this in the next few days. We hope you will all join us in discussing the details of the wheel testing issue as well as related topics such as 'Risk based NDT management' and Probability of detection. Personally, it is troubling to me that as usual, we see economic issues take precedence over safety. Rolf -- This message was posted into the UTonline Forum. Please do not reply to email: ultrasonic-forum@ndt.net For your reply and more information use: http://www.ndt.net/wshop/forum/forum.htm on NDTnet & UTonline. ------------------------------------------------------------ NDTnet The e-Journal of Nondestructive Testing & Ultrasonics Plus NDT online Exhibition * NDTnet - http://www.ndt.net * ------------------------------------------------------------ NDT Internet Publishing Tel: +49(0)5221-769314 Rolf Diederichs FAX: +49(0)5221-769731 Tacheniusweg 8 Email: rd@ndt.net D-32052 Herford ftp://www.ndt.net/incoming From madeju Sun Jun 7 04:57:02 1998 From: madeju (madeju) Date: Sun, 7 Jun 1998 11:57:02 0800 Subject: couplant Message-ID: <12497.980607@pub.sy.lnpta.net.cn> Hello Nde:Who sell industrial couplant Best regards, Madeju mailto:madejus@pub.sy.lnpta.net.cn From madeju Sun Jun 7 04:53:49 1998 From: madeju (madeju) Date: Sun, 7 Jun 1998 11:53:49 0800 Subject: couplant Message-ID: <15495.980607@pub.sy.lnpta.net.cn> Hello Nde:Who sell industrial couplants Best regards, Madeju mailto:madejus@pub.sy.lnpta.net.cn From rd@ndt.net Mon Jun 8 08:56:16 1998 From: rd@ndt.net (Rolf Diederichs) Date: Mon, 8 Jun 1998 02:56:16 -0500 (CDT) Subject: Nondestructive testing of railroad wheels at the German Bahn AG Message-ID: <199806080756.CAA18473@swrinde.nde.swri.edu> >To: nde@swrinde.nde.swri.edu >From: rd@ndt.net (Rolf Diederichs) >Subject: Nondestructive testing of railroad wheels at the German Bahn AG > >We invite to join our recent forum discussion on NDTnet: > >* This article was posted by Rolf Diederichs Dear Newsgroup Colleagues: Because of very serious circumstances we want to update you on the ongoing Forum discussions. Please add your comments on http://www.ndt.net/wshop/forum/forum.htm Also you can read and navigate much easier by use of the Forum Message Board. Rolf --------------- * This article was posted by H. Wuestenberg, BAM - Berlin * In Reply to: "Nondestructive testing of railroad wheels at the German Bahn AG" * from Rolf Diederichs on June 06, 1998 at 20:46:23 Remark concerning Mr. Hintze's article The ultrasonic inspection of the rim of the railrod wheel is based on a Surface wave travelling around the rim. Mr. Hintze gives some hints concerning the basic problem of the method: It's crack detection potential seems to be limited at aged wheels where the risc of cracks is increased. This is due to the increased scattering of the Rayleigh waves at shattered surfaces. The special contactless excitation and reception of the ultrasonic waves at that application is surely facilitating the practical use of the UT inspection, but it is not essential for the basic function of the method. Rayleigh wave probes with liquid couplants - e.g with a wedge or a comb structure - can do the same job. If there are limitations and problems with the crack detectability of the method at wheels with a high 'mileage' (e.g. greater then 200.000 km), then we have to admit that this is due to the Rayleigh wave diffraction at the shattered rim surface. Therefore it seems to me astonishing if the modification of the probe shape or the application of a more magnetostriction based wave excitation would improve the situation. Therefore we have to rise the basic question about the principal limitation of this approach for aged wheel rim's. Can we expect that even at somehow shattered rim's a high crack detection probability (that means almost 100%) will be assured by this 'single shot' inspection? There are other informations that about 40% of the inspected wheels are of that kind. Or must we look for methods which are scanning the surface? E.g. with TOFD probe arrangements, with creeping wave probes or others. Further commentaries are requested. H. Wuestenberg BAM - Berlin ------ Date: 8 Jun 1998 05:46:37 -0000 Subject: Re: Nondestructive testing of railroad wheels at the German Bahn AG To: rd@ndt.net * This article was posted by C.M. Fortunko * In Reply to: "Re: Nondestructive testing of railroad wheels at the German Bahn AG" * from H. Wuestenberg, BAM - Berlin on June 07, 1998 at 21:43:48 I agree with Dr. Wuestenberg's comments. The subject of wheel inspection should be revisited. However, I think that we must be careful about using magnetostrictive ultrasonic transducers, a version of the EMAT, which operates on Lorentz/Ampere forces. Chris ----------------------------- Date: 8 Jun 1998 06:20:12 -0000 Subject: Re: Nondestructive testing of railroad wheels at the German Bahn AG To: rd@ndt.net * This article was posted by Rolf Diederichs * In Reply to: "Nondestructive testing of railroad wheels at the German Bahn AG" * from Rolf Diederichs on June 06, 1998 at 20:46:23 Update: A previous press release from the Deutsche Bahn AG (DB) stated that UT was applied for in-service inspection of the wheel involved in the accident, as recently as one day the derailment occurred. However, June 6. evening the Deutsche Bahn retracted their report and said that Ultrasonic testing was NOT applied at all and is not part of this inspection stage. Based on the information available to us, we know that in Hamburg and Munich UT systems have worked since 1992 (1994). [1] Was testing discontinued completely because it is not 100% effective? The method used is based on ultrasonic surface waves (Rayleigh waves) which could test the complete circumference of the wheel without the need of infrequently used UT scanning techniques. After a relatively short operation time the wheel material characteristics hardened to the extent that sound was already absorbed and further evaluation was possible. Especially for older wheels, as hardening increased, this method failed. (40% of the wheels accordingly to Mr. Wuestenberg's message) In our report [1] you can read the transcript of my questions and concerns which I presented to Mr. Hintze's after his speech in Aachen at the German French workshop. At that time concerns about the reliability of the method were already open discussed. We know that other people in Aachen had the same doubt. In my opinion the DB was somewhat remiss all these years, in that they took no action toward the purchase of a better system, preferably one based on scanning testing methods such as the pulse echo technique in combination with TOFD (time of flight diffraction). Similar systems are working already in refurbishing shops at the DB in Darmstadt and Neumuenster. [2,3] Should we travel on an ICE before such a system is installed? Rolf Diederichs 1. http://www.ndt.net/article/report/df97/hintze/hintze_d.htm#6 2. http://www.irt.co.il/products/as220pr/as220pr.htm 3. http://www.krautkramer.com -- ----------------------------------------------- This message was posted into the UTonline Forum. Please do not reply to email: ultrasonic-forum@ndt.net For your reply and more information use: http://www.ndt.net/wshop/forum/forum.htm on NDTnet & UTonline. ------------------------------------------------------------ NDTnet The e-Journal of Nondestructive Testing & Ultrasonics Plus NDT online Exhibition * NDTnet - http://www.ndt.net * ------------------------------------------------------------ NDT Internet Publishing Tel: +49(0)5221-769314 Rolf Diederichs FAX: +49(0)5221-769731 Tacheniusweg 8 Email: rd@ndt.net D-32052 Herford ftp://www.ndt.net/incoming From rd@ndt.net Mon Jun 8 22:43:42 1998 From: rd@ndt.net (Rolf Diederichs) Date: Mon, 8 Jun 1998 16:43:42 -0500 (CDT) Subject: Problems With Crack Detection In High-Speed ICE Wheels Message-ID: <199806082143.QAA11011@swrinde.nde.swri.edu> (A copy of a press release on NDTnet) * This article was posted by Rolf Diederichs Problems With Crack Detection In High-Speed ICE Wheels. The Deutsche Bahn AG (DB) knew about the problems with the crack detection technique used on the railroad wheels of the high-speed ICE. "The DB knew that wheels must be tested" said Prof. Hermann Wüstenberg, chairman of the ultrasonic testing committee of the German Society for Nondestructive Testing (DGZfP) to NDTnet. When ICE was first developed, the DB followed a testing procedure which gave clear results for wheels with low running time. However, in May 1998, recognizing the weaknesses of this system, the DB began to develop a new procedure. Before, wheels with short running time had been be tested with the "ultrasonic surface wave method" only. With this method it is possible to test the complete circumference of the wheel in "one shot" However, this surface wave method delivers uncertain results when small surface disturbances are present, e.g., water drops, oil film. Results are especially affected after long running times; in other words, the method is weakest just where it needs to be strongest. With increasing running time the results of crack detection are more and more imprecise. The new test systems which had been discussed in May 1996 involved a much better ultrasonic method in addition to an eddy current method. It is unclear why until today this only been partially implemented in new trials; specifically the eddy current method had not been put into practice. Because the DB had knowledge of the problems that existed with the testing methods they used, they must answer the question: Why was safety not accorded a higher priority? (NDTnet) Rolf Diederichs -- This message was posted into the UTonline Forum. Please do not reply to email: ultrasonic-forum@ndt.net For your reply and more information use: http://www.ndt.net/wshop/forum/forum.htm on NDTnet & UTonline. ------------------------------------------------------------ NDTnet The e-Journal of Nondestructive Testing & Ultrasonics Plus NDT online Exhibition * NDTnet - http://www.ndt.net * ------------------------------------------------------------ NDT Internet Publishing Tel: +49(0)5221-769314 Rolf Diederichs FAX: +49(0)5221-769731 Tacheniusweg 8 Email: rd@ndt.net D-32052 Herford ftp://www.ndt.net/incoming From Zhang Xiao Tue Jun 9 01:20:00 1998 From: Zhang Xiao (Zhang Xiao) Date: Tue, 9 Jun 1998 08:20:00 +0800 Subject: couplant References: <12497.980607@pub.sy.lnpta.net.cn> Message-ID: <9347.980609@public.xm.fj.cn> Hi,I'm in Xiamen,China. One of my friends manufacture and sell industrial and medicine couplant. If you have interest,you can send e-mail to me, xzhang@public.xm.fj.cn. ÄãºÃ£º ÎÒÔÚÏÃÃÅ£¬ÎÒÔÚÏÃÃź½¿ÕÓÐÏÞ¹«Ë¾¹¤×÷£¬¸ºÔðÎÞËð¼ì²â£¬ÎÒµÄÒ»¸öÅóÓÑÔÚÉú²úñîºÏ ¼Á£¬²»ÖªÄúÓÃÓÚÄǸö·½Ã棬ÈçÓÐÐËȤ¿ÉÓëÎÒÁªÏµ¡£ ÏÃÃÅ ÕÅÏþ From tfmurf@aol.com Tue Jun 9 04:47:24 1998 From: tfmurf@aol.com (Tfmurf) Date: 09 Jun 1998 03:47:24 GMT Subject: Nondestructive testing of railroad wheels at the German Bahn AG References: <199806080756.CAA18473@swrinde.nde.swri.edu> Message-ID: <1998060903472400.XAA03523@ladder01.news.aol.com> Hello all, I think that maybe 4 years ago there was a request for design suggestions on a wheel rim inspection system for rail car wheels in the USA. I believe the specification required that the system be capable of performing the inspection on a slow "roll by" of the rail car (2-3 miles per hour). I don't remember if this was in Mat'l Eval or in an NTIAC newsletter. Casually, at the time, I assumed that an electromagnetic test would be the likely method for this application. Apparently UT is more common, at least in Germany. Does anyone remeber the request for quotation that was published a few years ago? If so, do they know who secured the contract and what method they utilized for the inspection? I have no vested interest in this, I am merely curious. Tom >
Subject: Re: Nondestructive testing of railroad wheels at the
>German Bahn AG
>From: rd@ndt.net (Rolf Diederichs)
>Date: Mon, Jun 8, 1998 04:11 EDT
>Message-id: <199806080756.CAA18473@swrinde.nde.swri.edu>
>
>>To: nde@swrinde.nde.swri.edu
>>From: rd@ndt.net (Rolf Diederichs)
>>Subject: Nondestructive testing of railroad wheels at the German Bahn AG
>>
>>We invite to join our recent forum discussion on NDTnet: 
>>
>>* This article was posted by Rolf Diederichs 
>
>Dear Newsgroup Colleagues:
>
>Because of very serious circumstances we want to update you on the ongoing 
>Forum discussions.
>Please add your comments on http://www.ndt.net/wshop/forum/forum.htm
>Also you can read and navigate much easier by use of the Forum Message Board.
>
>Rolf
>---------------
>
>* This article was posted by H. Wuestenberg, BAM - Berlin
>
>
> * In Reply to: "Nondestructive testing of railroad wheels at the German
>Bahn AG"
> * from Rolf Diederichs on June 06, 1998 at 20:46:23
>
>Remark concerning Mr. Hintze's article
>
>The ultrasonic inspection of the rim of the railrod wheel is based on a
>Surface wave travelling around the rim.  Mr. Hintze gives some hints
>concerning the basic problem of the method: It's crack detection potential
>seems to be limited at aged wheels where the risc of cracks is increased.
>This is due to the increased scattering of the Rayleigh waves at shattered
>surfaces. The special contactless excitation and reception of the ultrasonic
>waves at that application is surely facilitating the practical use of the UT
>inspection, but it is not essential for the basic function of the method.
>Rayleigh wave probes with liquid couplants - e.g with a wedge or a comb
>structure - can do the same job. If there are limitations and problems with
>the crack detectability of the method at wheels with a high 'mileage' (e.g.
>greater then 200.000 km), then we have to admit that this is due to the
>Rayleigh wave diffraction at the shattered rim surface. Therefore it seems
>to me astonishing if the modification of the probe shape or the application
>of a more magnetostriction based wave excitation would improve the
>situation. Therefore we have to rise the basic question about the principal
>limitation of this approach for aged wheel rim's. Can we expect that even at
>somehow shattered rim's a high crack detection probability (that means
>almost 100%)  will be assured by this 'single shot' inspection? There are
>other informations that about 40% of the inspected wheels are of that kind.
>Or must we look for methods which are scanning the surface? E.g. with TOFD
>probe arrangements, with creeping wave probes or others. 
>Further commentaries are requested.
>
>H. Wuestenberg
>BAM - Berlin
>
>------
>Date: 8 Jun 1998 05:46:37 -0000
>Subject: Re: Nondestructive testing of railroad wheels at the German Bahn AG
>To: rd@ndt.net
>
>* This article was posted by C.M. Fortunko 
>
> * In Reply to: "Re: Nondestructive testing of railroad wheels at the German
>Bahn AG"
> * from H. Wuestenberg, BAM - Berlin on June 07, 1998 at 21:43:48
>
>I agree with Dr. Wuestenberg's comments. The subject of wheel inspection
>should be revisited. However, I think that we must be careful about using
>magnetostrictive ultrasonic transducers, a version of the EMAT, which
>operates on Lorentz/Ampere forces.
>
>Chris
>
>-----------------------------
>Date: 8 Jun 1998 06:20:12 -0000
>Subject: Re: Nondestructive testing of railroad wheels at the German Bahn AG
>To: rd@ndt.net
>
>* This article was posted by Rolf Diederichs 
>
> * In Reply to: "Nondestructive testing of railroad wheels at the German
>Bahn AG"
> * from Rolf Diederichs on June 06, 1998 at 20:46:23
>
>Update:
>
>A previous press release from the Deutsche Bahn AG (DB) stated that UT was
>applied for in-service inspection of the wheel involved in the accident, as
>recently as one day the derailment occurred. However, June 6. evening the
>Deutsche Bahn retracted their report and said that Ultrasonic testing was
>NOT applied at all and is not part of this inspection stage.
>
>Based on the information available to us, we know that in Hamburg and Munich
>UT systems have  worked since 1992 (1994). [1]
>
>Was  testing  discontinued completely because it is not 100% effective?
>
>The method used is based on ultrasonic surface waves (Rayleigh waves) which
>could test the complete circumference of the wheel without the need of
>infrequently used UT scanning techniques. After a relatively short operation
>time the wheel material characteristics hardened
>to the extent  that sound was already absorbed and further evaluation was
>possible. Especially for  older wheels, as hardening increased, this method
>failed. (40% of the wheels accordingly to Mr. Wuestenberg's message)
>
>In our report [1] you can read the transcript of my questions and concerns
>which I presented to Mr. Hintze's after his speech in Aachen at the German
>French workshop. At that time concerns about the reliability of the method
>were already open discussed. We know that other people in Aachen had the
>same doubt. 
>
>In my opinion the DB was somewhat remiss all these years, in that they took
>no action toward the purchase of a better system, preferably one based on
>scanning testing methods such as the pulse echo technique in combination
>with TOFD (time of flight diffraction). Similar systems are working already
>in refurbishing  shops at the DB in Darmstadt and Neumuenster. [2,3]
>
>Should we travel on an ICE before such a system is installed?
>
>Rolf Diederichs
>
>1. http://www.ndt.net/article/report/df97/hintze/hintze_d.htm#6
>2. http://www.irt.co.il/products/as220pr/as220pr.htm
>3. http://www.krautkramer.com
>
>-- -----------------------------------------------
>This message was posted into the UTonline Forum.
>Please do not reply to email: ultrasonic-forum@ndt.net
>For your reply and more information use:
>http://www.ndt.net/wshop/forum/forum.htm
>on NDTnet & UTonline.
>------------------------------------------------------------
>                            NDTnet                          
>   The e-Journal of Nondestructive Testing & Ultrasonics    
>                   Plus NDT online Exhibition               
>                * NDTnet - http://www.ndt.net *             
>----------------------------------------------------



From volker@bertha.geophysik.fu-berlin.de  Tue Jun  9 09:22:33 1998
From: volker@bertha.geophysik.fu-berlin.de (Volker Rath)
Date: Tue, 09 Jun 1998 10:22:33 +0200 (CEST)
Subject: FW: Problems With Crack Detection In High-Speed ICE Wheels
Message-ID: 


-----FW: <199806082143.QAA11011@swrinde.nde.swri.edu>-----

Date: Mon, 8 Jun 1998 16:43:42 -0500 (CDT)
Sender: owner-nde@coqui.ccf.swri.edu
From: (Rolf Diederichs) 
To: nde@swrinde.nde.swri.edu
Subject: Problems With Crack Detection In High-Speed ICE Wheels

(A copy of a press release on NDTnet)

* This article was posted by Rolf Diederichs 

Problems With Crack Detection In High-Speed ICE Wheels.

The Deutsche Bahn AG (DB) knew about the problems with the crack detection
technique used on the railroad wheels of the high-speed ICE. 
"The DB knew that wheels must be tested" said Prof. Hermann Wüstenberg,
chairman of the ultrasonic testing committee of the German Society for
Nondestructive Testing (DGZfP) to NDTnet. 

When ICE was first developed, the DB followed a testing procedure which gave
clear results for wheels with low running time. However, in May 1998,
recognizing the weaknesses of this system, the DB began to develop a new
procedure. 

Before, wheels with short running time had been be tested with the
"ultrasonic surface wave method" only. With this method it is possible to
test the complete circumference of the wheel in "one shot" However, this
surface wave method delivers uncertain results when small surface
disturbances are present, e.g., water drops, oil film. Results are
especially affected after long running times; in other words, the method is
weakest just where it needs to be strongest. With increasing running time
the results of crack detection are more and more imprecise. 

The new test systems which had been discussed in May 1996 involved a much
better ultrasonic method in addition to an eddy current method. It is
unclear why until today this only been partially implemented in new trials;
specifically the eddy current method had not been put into practice. 

Because the DB had knowledge of the problems that existed with the testing
methods they used, they must answer the question: Why was safety not
accorded a higher priority? (NDTnet) 

Rolf Diederichs


-- 
This message was posted into the UTonline Forum.
Please do not reply to email: ultrasonic-forum@ndt.net
For your reply and more information use:
http://www.ndt.net/wshop/forum/forum.htm
on NDTnet & UTonline.
------------------------------------------------------------
                            NDTnet                          
   The e-Journal of Nondestructive Testing & Ultrasonics    
                   Plus NDT online Exhibition               
                * NDTnet - http://www.ndt.net *             
------------------------------------------------------------
  NDT Internet Publishing        Tel:  +49(0)5221-769314    
  Rolf Diederichs                FAX:  +49(0)5221-769731    
  Tacheniusweg 8                 Email: rd@ndt.net          
  D-32052 Herford                ftp://www.ndt.net/incoming 

--------------End of forwarded message-------------------------


 
----------------------------------
E-Mail: Volker Rath 
Date: 09-Jun-98
Time: 10:22:33
----------------------------------

Volker Rath
Institut fuer Geologie, Geophysik und Geoinformatik
Fachrichtung Geophysik
Hochschulgelaende Lankwitz - Haus D
Malteserstr. 74-100
D-12249 Berlin
Germany
Tel. +49 30 7792867
----------------------------------

From tover@awsparc.aws.org  Tue Jun  9 14:06:22 1998
From: tover@awsparc.aws.org (Terri Over)
Date: Tue, 9 Jun 1998 09:06:22 -0400
Subject: call for papers
Message-ID: 

Inspection Trends - The Magazine for Materials Inspection and Testing
Personnel is seeking papers  in the field of visual inspection. Papers must
be original and should be approximately 1500-2000 words in length.
Illustrations are strongly encouraged.  Also, any additional papers in the
field of inspection and testing are welcome for future issues. Thank you.
Please send to:

Terri Over
Editor
Inspection Trends
American Welding Society
550 NW LeJeune Road
Miami, FL 33126
USA

Ms. Terri Over
Editor
Inspection Trends
The American Welding Society
(305) 443-9353 ext. 307



From rd@ndt.net  Wed Jun 10 22:56:26 1998
From: rd@ndt.net (Rolf Diederichs)
Date: Wed, 10 Jun 1998 16:56:26 -0500 (CDT)
Subject: dpa News Message: Background of NDT on the German ICE wheel
Message-ID: <199806102156.QAA15212@swrinde.nde.swri.edu>

I would like to inform the Newsgroup on recent NDT public affaires.
The below text released by the German's Press association (DPA) is not
very technical, however, for this newsgroup it covers themes like
probability of detection or ethics of NDT and shall be interesting 
for everybody who works in the field of NDT.
A number of TV channels wanted to send a camera team but I suggested 
that footage of the actual WebSite would be more appropriate, also we 
may prepare a RealAudio file soon (virtual interview).  
- Rolf Diederichs

-----
dpa- News Message 

Hamburg/Eschede (dpa/lni), (translated by NDTnet)

 - Another expert has blamed the Deutsche Bahn for last week's ICE 
accident. Although the DB was aware that rail wheels of this type should 
be tested with ultrasound every 2-3 days, the implementation of such a system
was not pursued aggressively enough, Dipl.-Ing. Rolf Diederichs, publisher 
of an Internet journal about ultrasonic testing (www.ndt.net), told DPA on 
Wednesday. "Even though the necessity for more stringent testing was known, 
there seemed to be no sense of urgency to do anything about it, although 
state of the art equipment and technology were available, " said Diederichs. 

  Hegenscheidt pioneered a system in 1992, which was integrated into the 
Hegenscheidt-Diagnostic-systems of Hamburg in that same year, and in Munich 
in 1994. This system is used to test the wheels of those trains every few days. 

  The DB had originally planned to establish this system for the ICE train 
wheels officially. According to Diederichs, "They knew that during operation, 
defects can occur that can break the wheel, otherwise, why would they even 
have been considering applying the testing procedures to address that?" 


  The manager of Hegenscheidt, Klaus-Peter Schwarz, confirmed that the 
systems have been installed in Munich and Hamburg, in 1994, and 1992, 
respectively. These systems consist of three modules: roundness measurement, 
profile measurement and the ultrasonic unit to detect the cracks. However 
the ultrasonic unit showed evidence of unreliability, because signals coursed 
by "irrelevant surface cracks could make the important cracks invisible." 
For that reason the ultrasonic unit was switched off in Hamburg 1993 and in 
Munich it was not used for continuous 
testing. 

  However, according to Schwarz, the unit was undergoing further testing. 
"From these results a completely new ultrasonic unit for crack detection was 
developed. It will be tested in the next three weeks in Hamburg." 

  Currently experts are discussing better solutions in the online-Forum of the 
professional journal «The e-Journal of Nondestructive-Testing and Ultrasonics»
(www.ndt.net). 

  In addition to other articles, the site has published a lecture given by DB 
employee Hartmunt Hintze, who points out the problems of the
Hegenscheidt-system 
and an outlook on future improvements. "Meanwhile the technical modifications 
have been applied, and the trials are in preparation," he says.
(dpa/lni hu yy ek) (translated by NDTnet) 


In German:

   Hamburg/Eschede (dpa/lni) - Im Zusammenhang mit dem ICE-Unglück
von Eschede hat ein weiterer Experte Vorwürfe gegen die Bahn erhoben.
Die Bahn habe zwar von der Notwendigkeit einer Ultraschallprüfung der
Radreifen im Zyklus von zwei bis drei Tagen gewußt, die Entwicklung
eines entsprechendes Gerätes aber zu nachlässig verfolgt, sagte
Dipl.-Ing. Rolf Diederichs, Herausgeber einer Internet-Zeitschrift
über Ultraschallprüfverfahren (www.ndt.net), am Mittwoch der dpa.
«Obwohl die Notwendigkeit der Weiterentwicklung bekannt war, hat man
diese zu zögerlich betrieben.» Dabei seien andere Ultraschallmethoden
vorhanden, die als sogenannter Stand der Technik bezeichnet werden.

   Seit 1992 werde ein Ultraschallgerät getestet, das von der Firma
Hegenscheidt geliefert worden sei. Es sei in den Hegenscheidt-
Diagnose-Anlagen von Hamburg (1992) und München (1994) eingebaut, die
die ICE-Züge alle paar Tage überprüfen. Anfangs wollte die Bahn nach
Auskunft Diederichs mit der Hegenscheidt-Anlage die Radreifen auch
per Ultraschall in diesem Zeitabstand inspizieren. Sie habe gewußt,
das beim Zugbetrieb Fehler auftreten könnten, die zum Bruch eines
Radreifens führen könnten. «Man hätte wohl kaum Ultraschallanlagen
versucht zu etablieren, wenn nicht die Notwendigkeit dazu bekannt
gewesen sei.»

   Der Geschäftsführer der Firma Hegenscheidt, Klaus-Peter Schwarz,
bestätigte auf Anfrage, daß 1992 in Hamburg und 1994 in München
Geräte zur Überprüfung der ICE-Züge aufgebaut worden seien. Diese
Meßgeräte zum Testen der Räder hätten drei Module: Zur
Rundheitsmessung, Profilmessung und die Ultraschallkomponenten zur
Überprüfung der Risse. Die Ultraschallmessung habe sich im Betrieb
aber als unzuverlässig erwiesen, weil Signale von «harmlosen,
oberflächlichen Abbröselungen die Spuren von möglichen Rissen
überdeckten».

   Daher sei diese Ultraschallmessung in Hamburg Ende 1993
abgeschaltet worden und in München gar nicht erst in die
kontinuierliche Überwachung aufgenommen worden. Das Gerät ist Schwarz
zufolge jedoch ständig weiter getestet worden. «Aus den Ergebnissen
ist ein komplett neues Ultraschall-Modul zur Rißprüfung entstanden,
das in den nächsten drei Wochen in Hamburg getestet werden soll.»

   Derzeit diskutieren Experten im online-Forum der Fachzeitschrift
«The e-Journal of Nondestructive-Testing and Ultrasonics» unter
www.ndt.net über bessere Lösungen.

   Unter der Internet-Adresse ist unter anderem ein Fachvortrag des
DB-Mitarbeiters Hartmunt Hintze veröffentlicht, der auf Fehler in der
Ultraschallkomponente der Hegenscheidt-Anlage hinweist und
Verbesserungen aufzeigt. «Zwischenzeitlich wurden die technischen
Veränderungen in Hamburg realisiert, und die Erprobung wird
vorbereitet», heißt es darin.
dpa/lni hu yy ek
101727 Jun 98

------------------------------------------------------------
                            NDTnet                          
   The e-Journal of Nondestructive Testing & Ultrasonics    
                   Plus NDT online Exhibition               
                * NDTnet - http://www.ndt.net *             
------------------------------------------------------------
  NDT Internet Publishing        Tel:  +49(0)5221-769314    
  Rolf Diederichs                FAX:  +49(0)5221-769731    
  Tacheniusweg 8                 Email: rd@ndt.net          
  D-32052 Herford                ftp://www.ndt.net/incoming 




From yosi@jpl.nasa.gov  Thu Jun 11 07:19:38 1998
From: yosi@jpl.nasa.gov (Yoseph Bar-Cohen)
Date: Wed, 10 Jun 1998 23:19:38 -0700
Subject: Call for papers for the 99 SPIE Conf. on NDE
In-Reply-To: <01bd7d29$22ba2e80$6666b5cf@carmenar>
Message-ID: <3.0.3.32.19980610231938.006bdee4@pop.jpl.nasa.gov>

Dear NDE expert,


This is a call for papers for the SPIE's 6th Annual International Symposium on Smart Structures and Materials to be held in Newport, California, March 1-6, 1999.  This conference is going to be a joint one with the NDE Conferences. Specific topics and their related homepages are:


NDE of Aging Aircraft, Airports, and Aerospace Hardware (nd02)

http://www.spie.org/web/meetings/calls/nde99/nd02.html


Process Control and Sensors for Manufacturing (nd05)

http://www.spie.org/web/meetings/calls/nde99/nd05.html


The overall details of the Symposium can be found on http://www.spie.org/info/ss/


Also, for the first SPIE is going to hold the first Conference on Electroactive Polymer Actuators and Devices (EAPAD) (ss04).  Efforts currently under way to develop miniature insect-like robots that can perform unique tasks.  Some of the potential applications can be inspecting hidden areas of structures and provide data upon exiting the structure.  The homepage is: http://www.spie.org/web/meetings/calls/ss99/ss04.html


Yosi



 
_______________________________________________________________ 

|  Yoseph Bar-Cohen, Ph. D.                                     |

|  JPL Resident NDE Expert                                      |

|  Group Leader, NDE and Advanced Actuators (AA)                |

|  Jet Propulsion Lab (JPL), 125-224                            |

|  4800 Oak Grove Dr., Pasadena, CA 91109-8099                  |

|  818-354-2610,                   Fax: 818-393-4057            |

|  yosi@jpl.nasa.gov                  http://ndeaa.jpl.nasa.gov | 

 ----------------------------------------------------------------

From chuck_garner@ATK.COM  Thu Jun 11 23:27:52 1998
From: chuck_garner@ATK.COM (chuck_garner@ATK.COM)
Date: 11 Jun 1998 22:27:52 -0000
Subject: MatEval?
Message-ID: <19980611222752.21624.qmail@donar.teuto.de>

* This message was posted by C. Garner 

Does the company known as MatEval still exist? It is apparently not part of Rolls-Royce any more.
They sold an instrument called the Tapometer, a microprocessor based tap test instrument. I am interested in that or similar instruments.
Thanks for your help!
-- 
-------------------==== Posted via NDT NewsWeb ====-----------------------
http://www.ndt.net/newsweb/newsweb.htm   Topics, Statistics, Search, Post

From ardente@netcom.ca  Fri Jun 12 03:14:37 1998
From: ardente@netcom.ca (Carmen Ardente)
Date: 11 Jun 1998 22:14:37 EDT
Subject: Hardness Tester - "Pocket Size"
Message-ID: <01bd95a7$9abe9420$cc55b5cf@carmenar>

http://tor-pw1.netcom.ca/~ardente/index.html

The TH130 Portable Hardness Tester fits in your shirt pocket and retails
for US$ 2000.00

For more information please check out our web site.

Thanks,
ardente@netcom.ca
http://tor-pw1.netcom.ca/~ardente/index.html


From sales@meccasonics.com  Fri Jun 12 11:54:29 1998
From: sales@meccasonics.com (Meccasonics)
Date: 12 Jun 1998 10:54:29 GMT
Subject: MatEval?
References: <19980611222752.21624.qmail@donar.teuto.de>
Message-ID: <01bd95ef$45bbcd60$d74e08c3@workhorse>


> Does the company known as MatEval still exist? It is apparently not part
of Rolls-Royce any more.
> They sold an instrument called the Tapometer, a microprocessor based tap
test instrument. I am interested in that or similar instruments.

Mateval no longer exist. The tapometer or tap tester is still used by Rolls
Royce for vacuum loss inspection.

Try contacting Rolls Royce and Associates in Derby or alternatively Rolls
Royce Commercial Aero Engines Ltd. Product Support, you can find their
details at www.rolls-royce.com.

Kind regards

From hjbjh@kjbhhb.ll.ll  Fri Jun 12 20:40:46 1998
From: hjbjh@kjbhhb.ll.ll (con)
Date: 12 Jun 1998 19:40:46 GMT
Subject: Hardness Tester - "Pocket Size"
References: <01bd95a7$9abe9420$cc55b5cf@carmenar>
Message-ID: <01bd9639$bb8e2840$760993c3@default>

$2000.00 is a lot to keep inyour shirt pocket



From sola@imp-odeillo.fr  Fri Jun 12 21:31:59 1998
From: sola@imp-odeillo.fr (Xavier Solà Teixidó)
Date: Fri, 12 Jun 1998 22:31:59 +0200
Subject: X-ray portable test
Message-ID: <3581903F.BC15A7C@imp-odeillo.fr>

I'm trying to get information about x-ray non destructive portable tests
in real time in order to control the quality of the welded seam of high
strengh stainless steel sheets ( 0.5 up to 3 mm). Requirements: proven
performance in the field, cost-effective, systems with installation and
comprehensive after sales service, data analysis and storage.

I would greatly appreciate it if anyone could  assist me to get the
information which I require.

Thank you.


From wdg@inetone.net  Sat Jun 13 15:26:01 1998
From: wdg@inetone.net (wdg@inetone.net)
Date: Sat, 13 Jun 1998 14:26:01 GMT
Subject: water testing
Message-ID: <6lu25p$9k5$1@nnrp1.dejanews.com>

We are looking for an accurate water testing system to monitor river water
(chemical pollutants, E.coli, etc). Any suggestions on brands or type of
testing equipment out there? Thanks!

-----== Posted via Deja News, The Leader in Internet Discussion ==-----
http://www.dejanews.com/   Now offering spam-free web-based newsreading

From wen@rhea.nhlbi.nih.gov  Mon Jun 15 18:51:42 1998
From: wen@rhea.nhlbi.nih.gov (Han Wen)
Date: Mon, 15 Jun 1998 13:51:42 -0400 (EDT)
Subject: nonmagnetic motor
Message-ID: <199806151751.NAA12660@rhea.nhlbi.nih.gov>

Hello NDE experts,
I am building an ultrasound test stage in a MRI scanner,
and would appreciate any info. on non-magnetic motors.
I've heard of acoustic motors, but could not seem to locate the
commercial sources. Thanks much.

-- 
Han Wen
Laboratory of Cardiac Energetics
National Institutes of Health
Bethesda, MD 20892-1061
Phone:(301)496-2694
Fax:(301)402-2389


From saint02@globalnet.co.uk  Mon Jun 15 20:42:03 1998
From: saint02@globalnet.co.uk (SAINT)
Date: Mon, 15 Jun 1998 20:42:03 +0100
Subject: Hardness Tester - "Pocket Size"
References: <01bd95a7$9abe9420$cc55b5cf@carmenar>, <01bd9639$bb8e2840$760993c3@default>
Message-ID: <6m3t8f$4i1$1@heliodor.xara.net>

get a life con


andy



From Admin@Elmdale.co.uk  Tue Jun 16 16:41:19 1998
From: Admin@Elmdale.co.uk (Virgin Net News)
Date: Tue, 16 Jun 1998 16:41:19 +0100
Subject: X-ray portable test
References: <3581903F.BC15A7C@imp-odeillo.fr>
Message-ID: <6m63bi$obp$1@nclient5-gui.server.virgin.net>

Send me some info on what your doing.
We supply BP Oil company with this sort of product, mostly for abroad when
setting up new sites.


Xavier Solà Teixidó wrote in message <3581903F.BC15A7C@imp-odeillo.fr>...
>I'm trying to get information about x-ray non destructive portable tests
>in real time in order to control the quality of the welded seam of high
>strengh stainless steel sheets ( 0.5 up to 3 mm). Requirements: proven
>performance in the field, cost-effective, systems with installation and
>comprehensive after sales service, data analysis and storage.
>
>I would greatly appreciate it if anyone could  assist me to get the
>information which I require.
>
>Thank you.
>



From 643@760.com  Tue Jun 16 19:02:31 1998
From: 643@760.com (643@760.com)
Date: Tue, 16 Jun 98 18:02:31
Subject: NLREG - Nonlinear & linear statistical regression program - 156 0616180229 GQA
Message-ID: <6m6tgp$i2e$1@news1.triton.net>

    ** Announcing NLREG -- Nonlinear Statistical Regression Program **

               http://www.sandh.com/sherrod/nlreg.html

NLREG is a powerful statistical analysis program for Windows 95 and NT
that performs linear and nonlinear regression analysis and curve fitting.
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for specifying the function that is to be fitted to the data. This allows
you to compute intermediate work variables, use conditionals, and even
iterate in loops.  With NLREG it is easy to construct piecewise functions
that change form over different domains.

NLREG performs true nonlinear regression, it does not transform the
function into a linear form. As a result, it can handle functions that
are impossible to linearize such as:

  Y = Amplitude*SIN(Freq*X+Phase) + A*EXP(X);

Another advantage of handing the function in true nonlinear form is that
the minimization of the sum of squared residual values (i.e., "least
squares") is based on the true nonlinear value rather than some linearized
transformation.

In addition to computing the optimal values of the parameters, NLREG can
generate plots of the data points and the fitted equation. In addition, it
can plot the distribution of residual values.

In addition to performing classic nonlinear regression, NLREG can be used
to find the root or minimum value of a general nonlinear function. It can
also be used in a special form where the independent variable is omitted;
an interesting application of this is "circular regression" where a circle
is fitted to a set of data points.

NLREG is in use at hundreds of universities, laboratories, and government
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the web site:

    http://www.sandh.com/sherrod/nlreg.html

-- 156: sci.techniques.testing.nondestructive 0616180229 --


From edbless@int-tube.com  Thu Jun 18 04:10:11 1998
From: edbless@int-tube.com (Ed Blessman)
Date: Wed, 17 Jun 1998 22:10:11 -0500
Subject: Nondestructive testing of railroad wheels at the German Bahn AG
References: <199806080756.CAA18473@swrinde.nde.swri.edu>, <1998060903472400.XAA03523@ladder01.news.aol.com>
Message-ID: <6ma052$lp2$1@ionews.ionet.net>

There used to be an annual conference on magnetics at IIT in Chicago.  One
of the sessions delt with NDT and there were many presentations on rail
wheel testing.  Some of the systems have been field tested.  I don't know
the results.  I have been out of the field for many years, but perhaps there
is still activity in this area at IIT.        Ed B.


Tfmurf wrote in message <1998060903472400.XAA03523@ladder01.news.aol.com>...
>Hello all,
>
>I think that maybe 4 years ago there was a request for design suggestions
on a
>wheel rim inspection system for rail car wheels in the USA.  I believe the
>specification required that the system be capable of performing the
inspection
>on a slow "roll by" of the rail car (2-3 miles per hour).  I don't remember
if
>this was in Mat'l Eval or in an NTIAC newsletter.
>
>Casually, at the time, I assumed that an electromagnetic test would be the
>likely method for this application.  Apparently UT is more common, at least
in
>Germany.  Does anyone remeber the request for quotation that was published
a
>few years ago?  If so, do they know who secured the contract and what
method
>they utilized for the inspection?  I have no vested interest in this, I am
>merely curious.
>
>Tom
>
>
>>
Subject: Re: Nondestructive testing of railroad wheels at the
>>German Bahn AG
>>From: rd@ndt.net (Rolf Diederichs)
>>Date: Mon, Jun 8, 1998 04:11 EDT
>>Message-id: <199806080756.CAA18473@swrinde.nde.swri.edu>
>>
>>>To: nde@swrinde.nde.swri.edu
>>>From: rd@ndt.net (Rolf Diederichs)
>>>Subject: Nondestructive testing of railroad wheels at the German Bahn AG
>>>
>>>We invite to join our recent forum discussion on NDTnet:
>>>
>>>* This article was posted by Rolf Diederichs 
>>
>>Dear Newsgroup Colleagues:
>>
>>Because of very serious circumstances we want to update you on the ongoing
>>Forum discussions.
>>Please add your comments on http://www.ndt.net/wshop/forum/forum.htm
>>Also you can read and navigate much easier by use of the Forum Message
Board.
>>
>>Rolf
>>---------------
>>
>>* This article was posted by H. Wuestenberg, BAM - Berlin
>>
>>
>> * In Reply to: "Nondestructive testing of railroad wheels at the German
>>Bahn AG"
>> * from Rolf Diederichs on June 06, 1998 at 20:46:23
>>
>>Remark concerning Mr. Hintze's article
>>
>>The ultrasonic inspection of the rim of the railrod wheel is based on a
>>Surface wave travelling around the rim.  Mr. Hintze gives some hints
>>concerning the basic problem of the method: It's crack detection potential
>>seems to be limited at aged wheels where the risc of cracks is increased.
>>This is due to the increased scattering of the Rayleigh waves at shattered
>>surfaces. The special contactless excitation and reception of the
ultrasonic
>>waves at that application is surely facilitating the practical use of the
UT
>>inspection, but it is not essential for the basic function of the method.
>>Rayleigh wave probes with liquid couplants - e.g with a wedge or a comb
>>structure - can do the same job. If there are limitations and problems
with
>>the crack detectability of the method at wheels with a high 'mileage'
(e.g.
>>greater then 200.000 km), then we have to admit that this is due to the
>>Rayleigh wave diffraction at the shattered rim surface. Therefore it seems
>>to me astonishing if the modification of the probe shape or the
application
>>of a more magnetostriction based wave excitation would improve the
>>situation. Therefore we have to rise the basic question about the
principal
>>limitation of this approach for aged wheel rim's. Can we expect that even
at
>>somehow shattered rim's a high crack detection probability (that means
>>almost 100%)  will be assured by this 'single shot' inspection? There are
>>other informations that about 40% of the inspected wheels are of that
kind.
>>Or must we look for methods which are scanning the surface? E.g. with TOFD
>>probe arrangements, with creeping wave probes or others.
>>Further commentaries are requested.
>>
>>H. Wuestenberg
>>BAM - Berlin
>>
>>------
>>Date: 8 Jun 1998 05:46:37 -0000
>>Subject: Re: Nondestructive testing of railroad wheels at the German Bahn
AG
>>To: rd@ndt.net
>>
>>* This article was posted by C.M. Fortunko 
>>
>> * In Reply to: "Re: Nondestructive testing of railroad wheels at the
German
>>Bahn AG"
>> * from H. Wuestenberg, BAM - Berlin on June 07, 1998 at 21:43:48
>>
>>I agree with Dr. Wuestenberg's comments. The subject of wheel inspection
>>should be revisited. However, I think that we must be careful about using
>>magnetostrictive ultrasonic transducers, a version of the EMAT, which
>>operates on Lorentz/Ampere forces.
>>
>>Chris
>>
>>-----------------------------
>>Date: 8 Jun 1998 06:20:12 -0000
>>Subject: Re: Nondestructive testing of railroad wheels at the German Bahn
AG
>>To: rd@ndt.net
>>
>>* This article was posted by Rolf Diederichs 
>>
>> * In Reply to: "Nondestructive testing of railroad wheels at the German
>>Bahn AG"
>> * from Rolf Diederichs on June 06, 1998 at 20:46:23
>>
>>Update:
>>
>>A previous press release from the Deutsche Bahn AG (DB) stated that UT was
>>applied for in-service inspection of the wheel involved in the accident,
as
>>recently as one day the derailment occurred. However, June 6. evening the
>>Deutsche Bahn retracted their report and said that Ultrasonic testing was
>>NOT applied at all and is not part of this inspection stage.
>>
>>Based on the information available to us, we know that in Hamburg and
Munich
>>UT systems have  worked since 1992 (1994). [1]
>>
>>Was  testing  discontinued completely because it is not 100% effective?
>>
>>The method used is based on ultrasonic surface waves (Rayleigh waves)
which
>>could test the complete circumference of the wheel without the need of
>>infrequently used UT scanning techniques. After a relatively short
operation
>>time the wheel material characteristics hardened
>>to the extent  that sound was already absorbed and further evaluation was
>>possible. Especially for  older wheels, as hardening increased, this
method
>>failed. (40% of the wheels accordingly to Mr. Wuestenberg's message)
>>
>>In our report [1] you can read the transcript of my questions and concerns
>>which I presented to Mr. Hintze's after his speech in Aachen at the German
>>French workshop. At that time concerns about the reliability of the method
>>were already open discussed. We know that other people in Aachen had the
>>same doubt.
>>
>>In my opinion the DB was somewhat remiss all these years, in that they
took
>>no action toward the purchase of a better system, preferably one based on
>>scanning testing methods such as the pulse echo technique in combination
>>with TOFD (time of flight diffraction). Similar systems are working
already
>>in refurbishing  shops at the DB in Darmstadt and Neumuenster. [2,3]
>>
>>Should we travel on an ICE before such a system is installed?
>>
>>Rolf Diederichs
>>
>>1. http://www.ndt.net/article/report/df97/hintze/hintze_d.htm#6
>>2. http://www.irt.co.il/products/as220pr/as220pr.htm
>>3. http://www.krautkramer.com
>>
>>-- -----------------------------------------------
>>This message was posted into the UTonline Forum.
>>Please do not reply to email: ultrasonic-forum@ndt.net
>>For your reply and more information use:
>>http://www.ndt.net/wshop/forum/forum.htm
>>on NDTnet & UTonline.
>>------------------------------------------------------------
>>                            NDTnet
>>   The e-Journal of Nondestructive Testing & Ultrasonics
>>                   Plus NDT online Exhibition
>>                * NDTnet - http://www.ndt.net *
>>----------------------------------------------------
>
>



From bnadeau@rogerswave.ca  Thu Jun 18 22:09:41 1998
From: bnadeau@rogerswave.ca (Bill Nadeau)
Date: Thu, 18 Jun 1998 17:09:41 -0400
Subject: Online purchasing -LPI MPI consumables
Message-ID: <6mbvlf$lq0$1@news.on>

We have a complete online system for quoting, purchasing converting
products.... for magnetic particle and fluorescent dye consumable products.
As much as a resource page, our site has a secure section for purchase
transactions or just pricing products with an international currency
converter.

http://www.corvib.com/ardrox


Thank you
--
Bill Nadeau
bnadeau@rogerswave.ca



From ronanis@aol.com  Sat Jun 20 17:52:37 1998
From: ronanis@aol.com (Ronanis)
Date: 20 Jun 1998 16:52:37 GMT
Subject: nonmagnetic motor
References: <199806151751.NAA12660@rhea.nhlbi.nih.gov>
Message-ID: <1998062016523700.MAA24128@ladder01.news.aol.com>

Contact Bill Grandia at QMI, 919 Sunset Drive, Costa Mesa 92627..tel 714
631-7672 for information on his ultrasonic motor
fax 714 631-7861>Hello NDE experts,
>I am building an ultrasound test stage in a MRI scanner,
>and would appreciate any info. on non-magnetic motors.
>I've heard of acoustic motors, but could not seem to locate the
>commercial sources. Thanks much.
>
>-- 
>Han Wen
>Laboratory of Cardiac Energetics
>National Institutes of Health
>Bethesda, MD 20892-1061
>Phone:(301)496-2694
>Fax:(301)402-2389
>
>



From peterlarge@onyxnet.co.uk  Mon Jun 22 18:27:51 1998
From: peterlarge@onyxnet.co.uk (Peter Large)
Date: 22 Jun 1998 17:27:51 GMT
Subject: Hocking  Av10b Query.
Message-ID: <01bd9e03$6adcfd00$LocalHost@default>

NDT Tech. carrying out Eddy Current testing has Hocking Av 10b set. 
Problem is cant work out how to set the test frequency on the instrument
panel.  2 controls on set, one for coarse and one for fine, one set of
figures in black and one set in red.  Dont know which is which.  Also
figures are repeated sometimes in black and red - cannot figure out the
relationship betwwen the 2.  Anybody familiar with this set?  Anybody scan
in the relevant page of the unobtainable set manual?  Many thanks - Pete.


From kboate@chat.carleton.ca  Mon Jun 22 20:31:21 1998
From: kboate@chat.carleton.ca (Ken Boate)
Date: 22 Jun 1998 19:31:21 GMT
Subject: Crack growth curves and error bounds.
Message-ID: <6mmbe9$dqo$1@bertrand.ccs.carleton.ca>


Hi,
I'm attmepting to gain information on determining the error bounds of a
crack growth curve created from experimental data and a probabilistic
methodology. I'd appreciate any help that you may have. 
Thanks,
Ken Boate


----------------------------------------------------------------------
Ken Boate 			   
Aerospace Engineering II
Email: boatek@engsoc.carleton.ca
       ken.boate@nrc.ca


From jmb34@student.open.ac.uk  Mon Jun 22 20:43:14 1998
From: jmb34@student.open.ac.uk (Joe Buckley)
Date: Mon, 22 Jun 1998 20:43:14 +0100
Subject: Hocking  Av10b Query.
References: <01bd9e03$6adcfd00$LocalHost@default>
Message-ID: 

peterlarge@onyxnet.co.uk,Internet writes:
>NDT Tech. carrying out Eddy Current testing has Hocking Av 10b set. 
>Problem is cant work out how to set the test frequency on the instrument
>panel.  2 controls on set, one for coarse and one for fine, one set of
>figures in black and one set in red.  Dont know which is which.  Also
>figures are repeated sometimes in black and red - cannot figure out the
>relationship betwwen the 2.  Anybody familiar with this set?  Anybody
>scan
>in the relevant page of the unobtainable set manual?  Many thanks -
>Pete.


It seemed obvious enough to us at the time, but this did confuse quite
a few people .

>From memory, so details may be a bit hazy, but if for example you are
on Course range 100kHz,  (assume its a black range, I cant remember
which was which) and Fine range with black numbering 1.5, then the
frequency would be 150kHz, if the course range was 330 kHz(red)  and
the fine range was 5.0 (red) the frequency would be 500kHz etc

Hopefully one of my former colleagues at Hocking can let you have a
manual, their phone number is +44 1727 840321


************************************************************************
****************************
Joe Buckley, Open University MBA Student           
jmb34@student.open.ac.uk
Product Manager, Sonatest PLC                            
joeB@sonatest-plc.com
                                                                       
       www.sonatest-plc.com
General E-mail to Joe_buckley@bigfoot.com
Fax +44 1908 321323    Work phone +44 1908 316345
************************************************************************
***************************

From sidedu@siderca.com  Mon Jun 22 21:29:00 1998
From: sidedu@siderca.com (ALTSCHULER, Eduardo       CINI)
Date: Mon, 22 Jun 1998 17:29:00 -0300
Subject: Portable gaussmeter
Message-ID: <19980622202514Z176787-28054+3631@smtpsrv2.techint.net>

Hi,
we need a portable digital gaussmeter to measure active and residual AC
and DC magnetic fields. Any recomendation on vendors or manufacturers
will be highly appreciated.

Eduardo Altschuler
Center for Industrial Research
email: sidedu@siderca.com

From Thomas.J.Bloodworth@aeat.co.uk  Tue Jun 23 08:28:15 1998
From: Thomas.J.Bloodworth@aeat.co.uk (Thomas J Bloodworth)
Date: Tue, 23 Jun 1998 08:28:15 +0100
Subject: Portable gaussmeter
Message-ID: <00063EE9.1268@ccgate.aeat.co.uk>

     Try Bartington Instruments:
     
     e-mail: sales@bartington.com
     web: http://www.bartington.com/
     
     or Hirst:
     
     +44 (0)1326 372734
     
     Tom


______________________________ Reply Separator _________________________________
Subject: Portable gaussmeter
Author:  "ALTSCHULER; Eduardo       CINI"  at Internet-mail
Date:    22/06/98 17:29


Hi,
we need a portable digital gaussmeter to measure active and residual AC 
and DC magnetic fields. Any recomendation on vendors or manufacturers 
will be highly appreciated.
     
Eduardo Altschuler
Center for Industrial Research
email: sidedu@siderca.com

From woodhead@dial.pipex.com  Tue Jun 23 13:58:03 1998
From: woodhead@dial.pipex.com (Woodhead)
Date: Tue, 23 Jun 1998 13:58:03 +0100
Subject: NDT books online
Message-ID: <6mo8qf$440$1@flex.london.pipex.net>

Http://www.woodhead-publishing.com



From corvib@corvib.com  Tue Jun 23 16:54:48 1998
From: corvib@corvib.com (Bill Nadeau)
Date: Tue, 23 Jun 1998 15:54:48 GMT
Subject: NDT Instrumentation
Message-ID: <6mo8uq$2g0$1@ns2.trigger.net>

We have instrumentation featuring some of the latest technologies for
Hardness Testing, coating thickness, ultrasonic and paper testing for
sale.

 To see new instruments, direct your
browser to http://www.corvib.com/

For used and demo instrumentation see http://www.corvib.com/used

Thank you 


From thocking@hocking.com  Tue Jun 23 16:16:13 1998
From: thocking@hocking.com (thocking@hocking.com)
Date: 23 Jun 1998 15:16:13 GMT
Subject: Hocking  Av10b Query.
References: <01bd9e03$6adcfd00$LocalHost@default>
Message-ID: <01bd9eba$1b11d0e0$f85380c2@lab.easynet.co.uk>

Yes, Joes explanation covers the setting procedure correctly. 

First select the band on the Coarse dial (i.e. 100, 300, 1k, 3k, 10k, 30k,
100k, 300k or 1M). 

The Fine control can now be used to adjust the frequency upwards.

If a black number is selected on Coarse use the black scale on Fine, and if
a red number is used on Coarse use the red scale on fine.

e.g. if 100 (black) is selected on Coarse then selecting 1.0 (black) on
Fine gives you 100k, and selecting 2.4 black) gives you 240k.
if 30k (red) is selected on Coarse then selecting 3.6 (red) gives you 36k
and 7.0 (red) gives you 70k.

If you want I can fax over parts of the operating manual to you, but it
doesn't actually cover the frequency selection in detail as above. If
you've got any further questions please respond to me. Hope it goes well.

Tony Hocking
tony@hocking.com
www.hocking.com
01727 795500

Peter Large  wrote in article
<01bd9e03$6adcfd00$LocalHost@default>...
> NDT Tech. carrying out Eddy Current testing has Hocking Av 10b set. 
> Problem is cant work out how to set the test frequency on the instrument
> panel.  2 controls on set, one for coarse and one for fine, one set of
> figures in black and one set in red.  Dont know which is which.  Also
> figures are repeated sometimes in black and red - cannot figure out the
> relationship betwwen the 2.  Anybody familiar with this set?  Anybody
scan
> in the relevant page of the unobtainable set manual?  Many thanks - Pete.
> 
> 

From barter55@my-dejanews.com  Wed Jun 24 08:28:54 1998
From: barter55@my-dejanews.com (Bambi Arter)
Date: Wed, 24 Jun 1998 03:28:54 -0400
Subject: Crack growth curves and error bounds.
References: <6mmbe9$dqo$1@bertrand.ccs.carleton.ca>
Message-ID: <3590AAB4.A17E8BB@asnt.org>

test message

Ken Boate wrote:

> Hi,
> I'm attmepting to gain information on determining the error bounds of a
> crack growth curve created from experimental data and a probabilistic
> methodology. I'd appreciate any help that you may have.
> Thanks,
> Ken Boate
>
> ----------------------------------------------------------------------
> Ken Boate
> Aerospace Engineering II
> Email: boatek@engsoc.carleton.ca
>        ken.boate@nrc.ca



--
MZ



From barter55@my-dejanews.com  Wed Jun 24 08:37:22 1998
From: barter55@my-dejanews.com (Bambi Arter)
Date: Wed, 24 Jun 1998 03:37:22 -0400
Subject: water testing
References: <6lu25p$9k5$1@nnrp1.dejanews.com>
Message-ID: <3590ACAE.E328FC1D@asnt.org>

Dear Mr. Wen:
    If you have not checked out The American Society for Nondestructive
Testing's web
site NDT Link (www.asnt.org) try it to see if there is a resource that you
haven't found
yet.  We have a section where you can find companies through testing methods
and a
section called the Corporate Community List that contains URL links to other
companies
associated with ASNT.  If you have any trouble getting around on NDT Link,
contact me
(Bambi Arter) at barter@asnt.org.



wdg@inetone.net wrote:

> We are looking for an accurate water testing system to monitor river water
> (chemical pollutants, E.coli, etc). Any suggestions on brands or type of
> testing equipment out there? Thanks!
>
> -----== Posted via Deja News, The Leader in Internet Discussion ==-----
> http://www.dejanews.com/   Now offering spam-free web-based newsreading



--
MZ



From Car  Wed Jun 24 07:22:03 1998
From: Car (Car)
Date: Wed, 24 Jun 1998 01:22:03 -0500
Subject: Drive any new car for $100 p/month.
Message-ID: 

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From able@world.std.com  Wed Jun 24 19:10:02 1998
From: able@world.std.com (Dr Y Wu/Able Software Co.)
Date: Wed, 24 Jun 1998 18:10:02 GMT
Subject: Free Trial Software for 3D Image Visualization and Rendering
Message-ID: 


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3D-Doctor includes both fully automatic and interactive segmentation,
3D image registration and fusion, image restoration and
reconstruction by deconvolution, image measurements (size, area, 
volume, surface area, voxel values,
voxel profile and histogram of image region), and many 
implementations of fast volume and surface rendering methods.

A free trial version of 3D-Doctor is available at:
	http://www.ablesw.com/3d-doctor 


-------------------------------------------------------------------
Yecheng Wu, Ph.D. 		Able Software Co.
3D-Doctor (tm) - Advanced 3D Image Visualization and Rendering Software
Web: http://www.ablesw.com/3d-doctor
EMail: ywu@ablesw.com	or 	able@world.std.com
Fax: 781-862-2640		Tel: 781-862-2804
-------------------------------------------------------------------

From lisheng@leconte.seas.ucla.edu  Wed Jun 24 21:48:20 1998
From: lisheng@leconte.seas.ucla.edu (Lisheng Weng)
Date: Wed, 24 Jun 1998 20:48:20 GMT
Subject: Call for papers
Message-ID: 


Dear Colleague:

We would like to invite you to contribute an abstract
to the Symposium on "NDE of Aging Aircraft, Airport, and
Aerospace Hardware" (nd02), a part of the 1999 SPIE
International Symposium on "Nondestructive Evaluation Techniques
for Aging Infrastructure and Manufacturing", to be
held on March 3-5, 1999, at Newport Beach Marriott Hotel,
Newport Beach, California (near Los Angeles).

The focus of our part will be on NDE for airport concrete structures,
including airfield runways, taxiways, buildings, bridges,
roadway pavements, and so on (infrastructure).
Please see the following call for paper for more detail.
The web site is:
http://www.spie.org/info/nde

The abstract is due on July 13, 1998.
If you could contribute, please send an abstract to
SPIE, with a COPY TO Prof. Ju, before July 13, 1998.
Please choose ONLY ONE of the following options to submit your
abstract:

(1) SPIE WEB: complete the form on the SPIE Web site:
  www.spie.org/forms/nde99_submission_form.html

OR

(2) E-mail your abstract to abstract@spie.org in ASCII text
    (not encoded) format. In your e-mail subject, include only
    the following:
    SUBJECT: ND02, MAL

OR

(3) Mail 3 copies of your abstract to:
    Nondestructive Evaluation Techniques for Aging
    Infrastructure and Manufacturing,
    SPIE, P.O. Box 10,
    Bellingam, WA 98227-0010, USA
    Tel: (360) 676-3290

OR

(4) FAX one copy to SPIE at (360) 647-1445.
    
Thank you for your attention. We hope that you could
join us for this conference. We expect to have at least
3 sessions on NDE of Airport Concrete Structures.

Sincerely,


Professor J. Woody Ju
Dept. of Civil and Environmental Engineering
5731 Boelter Hall
University of California, Los Angeles
Los Angeles, CA 90095-1593

Tel: (310) 206-1751
Fax: (310) 267-2283 
e-mail:  juj@woody.seas.ucla.edu or juj@seas.ucla.edu

AND

Dr. Xiaogong Lee
Program Manager, Airport Pavements
FAA William J. Hughes Technical Center
Airport Technology R&D Branch, AAR-410
Atlantic City Int'l Airport, NJ 08405
Tel: (609) 485-6967
Fax: (609) 485-4845
e-mail: xiaogong_lee@admin.tc.faa.gov, xlee@faa.gov


--------------------------------------------------------------------

CALL FOR PAPERS
***************
SPIE's International Symposium on
Nondestructive Evaluation Techniques 
for Aging Infrastructure & Manufacturing

NEW LOCATION FOR 1999!
  Newport Beach Marriott Hotel and Tennis Club
  Newport Beach, California USA
  3 - 5 March 1999
 
Abstract Due Date: 13 July 1998
Camera-Ready Abstract Due Date: 28 December 1998
Manuscript Due Date: 30 November 1998

NOTE: The proceedings for the NDE conferences will be
published prior to the meeting and distributed on site.
 
Your printed copy of the NDE Call for Papers is on 
its way to you. For your convenience the Call for Papers 
is also available on the Web:
    http://www.spie.org/info/nde/

Plan now to present your latest research results at this 
international symposium. By presenting a paper, you will: 

- Connect with other researchers, sponsors, and clients. 

- Publish your work in the internationally distributed 
  "Proceedings of SPIE."

- Hear the latest advancements in the industry.

In 1999, the NDE meeting is co-located with SPIE's 
International Symposium on Smart Structures and Materials. 

This is a unique opportunity for the NDE and Smart Structures 
communities to interact and compare the application of technology
and the evolution of knowledge that is fueling the breakthroughs 
in these related disciplines.

If your copy of this Call for Papers does not reach you, 
and you wish another sent by mail, contact SPIE Customer 
Service with your request.

Email: spie@spie.org  Fax: (1) 360/647-1445  Ph: (1) 360/676-3290


From edbless@int-tube.com  Thu Jun 25 05:37:28 1998
From: edbless@int-tube.com (Ed Blessman)
Date: Wed, 24 Jun 1998 23:37:28 -0500
Subject: Portable gaussmeter
References: <19980622202514Z176787-28054+3631@smtpsrv2.techint.net>
Message-ID: <6msjsg$djg$1@ionews.ionet.net>

Try:
    Magnetic Instermentation, Indianapolis, IN
    Walker Magnetics
    RFL
sorry, I don't have URL's
ed

ALTSCHULER, Eduardo CINI wrote in message
<19980622202514Z176787-28054+3631@smtpsrv2.techint.net>...
>Hi,
>we need a portable digital gaussmeter to measure active and residual AC
>and DC magnetic fields. Any recomendation on vendors or manufacturers
>will be highly appreciated.
>
>Eduardo Altschuler
>Center for Industrial Research
>email: sidedu@siderca.com



From gros@riam.kyushu-u.ac.jp  Fri Jun 26 08:59:41 1998
From: gros@riam.kyushu-u.ac.jp (X.E.Gros)
Date: Fri, 26 Jun 1998 16:59:41 +0900 (JST)
Subject: NDT of Composite Materials
Message-ID: <199806260759.QAA03313@riam01.riam.kyushu-u.ac.jp>

INTERNATIONAL CONFERENCE INFORMATION
------------------------------------

The date for submission of abstracts to the International Conference
on Advanced Composites has been extended up to 31 July 1998.

Submission of abstracts can be done by e-mail to Professor Y. Gowayed
from Auburn University at: ygowayed@eng.auburn.edu

As a reminder, this conference will include sessions on NDT of composite
materials, life cycle and reliability of composites, wave propagation
in composites, damage mechanics and fracture mechanics, impact damage, 
interface, debonding, etc. For more information see the Internet
site at http://www.eng.auburn.edu/conference/icac/

In December, it is probably the only occasion to escape cold places 
and visit Egypt while reviewing major worldwide state-of-the-art developements
in composite science and technology.

******************************************************************************

From gros@riam01.riam.kyushu-u.ac.jp  Sat Jun 27 09:13:26 1998
From: gros@riam01.riam.kyushu-u.ac.jp (X.E.Gros)
Date: Sat, 27 Jun 1998 17:13:26 +0900 (JST)
Subject: JSNDI Fall Conference 1998
Message-ID: <199806270813.RAA04876@riam01.riam.kyushu-u.ac.jp>

FORTHCOMING CONFERENCE INFORMATION
---------------------------------------------------------------------------

The Japanese Society for Non-Destructive Inspection (JSNDI)
Fall Conference 1998

Date: 11-12 November 1998

Location: Nagoya, Japan

Abstract deadline submission: 27 July 1998 (max 200 words)

Deadline article submission: 30 September 1998 (4 pages)

For additional information e-mail: Mr Hiroshi Ohkawara at gakujutsu@jsndi.or.jp

Snail mail: 	JSNDI, Mr Hiroshi Ohkawara, Manager Academic Affairs Section,
		Natsume No5 Bldg. 4th Fl., 67 Kanda-sakumagashi
		Chiyoda-ku, Tokyo 101, Japan
		Tel: + 81 + 3 5821 5105
		Fax: + 81 + 3 3863 6524

Conference topics:

Papers related to but not limited to the following subjects of NDT will be
considered: research, test and survey reports on NDT and materials evaluation,
developement of new NDT technologies including on-site testing and new
inspection equipment.

-------------------------------------------------------------------------------


From gros@riam01.riam.kyushu-u.ac.jp  Sat Jun 27 09:19:50 1998
From: gros@riam01.riam.kyushu-u.ac.jp (X.E.Gros)
Date: Sat, 27 Jun 1998 17:19:50 +0900 (JST)
Subject: acoustic microscopy of specimens with curved shape
Message-ID: <199806270819.RAA04881@riam01.riam.kyushu-u.ac.jp>

Dear all,

Could anyone let me know of any publications on the use of acoustic microscopy
for testing specimens with curved shape ?

In advance than you.


Xavier



******************************************************************
Dr Xavier E. Gros (gros@riam.kyushu-u.ac.jp)
Research Institute for Applied Mechanics (RIAM)
Kyushu University, 6-1 Kasuga Koen, Kasuga Shi 816-8580, Japan
http://www.riam.kyushu-u.ac.jp/fracture/xav01.htm
Fax: + 81 + 92 582 42 01
******************************************************************
 

From gtompk2922@aol.com  Sat Jun 27 16:04:16 1998
From: gtompk2922@aol.com (GTompk2922)
Date: 27 Jun 1998 15:04:16 GMT
Subject: Laboratory Equipment-New and Used
Message-ID: <1998062715041600.LAA10514@ladder01.news.aol.com>

Check out our web site for great deals on new and used lab equipment. Use our
equipment exchange area to sell your surplus equipment or find equipment you
are looking for. Thiss service is provided free of charge. Visit us at
www.reseser.com.

From woochoi@hyowon.cc.pusan.ac.kr  Sun Jun 28 10:00:25 1998
From: woochoi@hyowon.cc.pusan.ac.kr (Sangwoo Choi)
Date: 28 Jun 1998 09:00:25 GMT
Subject: Elastodynamic Finite Integration Technique?
Message-ID: <6n50n9$o5q$1@jagalchi.cc.pusan.ac.kr>


When I read papers, I saw this word - EFIT.

That is Elastodynamic Finite Integration Technique.

Ultrasonic wave propagation is simulated with this EFIT.

What is EFIT?

I want to know EFIT.

Is there any text book?

Give me information please.

Thanks in advance..

--
	Material Strength And NonDestructive Evaluation Lab.
	Mechanical Design Engineering
	Pusan National University.
	South Korea


	E-Mail: woochoi@hyowon.cc.pusan.ac.kr
		woochoi@metric.pusan.ac.kr
		gundam@msnnde.me.pusan.ac.kr
	Homepage	http://hyowon.cc.pusan.ac.kr:8080/~woochoi


From rd@ndt.net  Sun Jun 28 15:24:28 1998
From: rd@ndt.net (Rolf Diederichs)
Date: Sun, 28 Jun 1998 09:24:28 -0500 (CDT)
Subject: Elastodynamic Finite Integration Technique?
Message-ID: <199806281424.JAA22691@coqui.ccf.swri.edu>

Find below information of the Ultrasonic Testing Encyclopedia on NDT.net
Also you may use the search and enter the search term 'EFIT' or for related 
fields use terms like 'simulation' or 'modelling'.

Rolf Diederichs

-----
http://www.ndt.net/ut_az/ut_e/ut_e.htm#efit
EFIT: 
The Elastodynamic Finite Element Technique (EFIT) is an numerical code to
model the propagation and
scattering of elasic waves. 

http://www.ndt.net/article/ut_az/ut_m/ut_m.htm#model
modeling: 
The benefit of mathematical modeling codes for modern NDT is well-known, as
they are increasingly applied to simulate ultrasonic experiments in
real-life inspection. They yield valuable information on the propagation of
ultrasound and its interaction with defects and allow for visualization of
sound fields and sensitivity zones of ultrasonic transducers. Modern
versions of modeling codes - such as the Elastodynamic Finite Integration
Technique (EFIT) and the generalized Point-Source-Synthesis (GPSS) - are
able to provide quantitative results in form of echo dynamics and A-, B-, or
C-scans. 

http://www.ndt.net/article/ut_az/ut_m/info/model_bi.htm
Ultrasonic Modeling (Simulation) 





>When I read papers, I saw this word - EFIT.
>
>That is Elastodynamic Finite Integration Technique.
>
>Ultrasonic wave propagation is simulated with this EFIT.
>
>What is EFIT?
>
>I want to know EFIT.
>
>Is there any text book?
>
>Give me information please.
>
>Thanks in advance..
>
>--
>	Material Strength And NonDestructive Evaluation Lab.
>	Mechanical Design Engineering
>	Pusan National University.
>	South Korea
>
>
>	E-Mail: woochoi@hyowon.cc.pusan.ac.kr
>		woochoi@metric.pusan.ac.kr
>		gundam@msnnde.me.pusan.ac.kr
>	Homepage	http://hyowon.cc.pusan.ac.kr:8080/~woochoi
>
------------------------------------------------------------
                            NDT.net                          
   The e-Journal of Nondestructive Testing & Ultrasonics    
                   Plus NDT online Exhibition               
                * NDTnet - http://www.ndt.net *             
------------------------------------------------------------
  NDT Internet Publishing        Tel:  +49(0)5221-769314    
  Rolf Diederichs                FAX:  +49(0)5221-769731    
  Tacheniusweg 8                 Email: rd@ndt.net          
  D-32052 Herford                ftp://www.ndt.net/incoming 




From tms.ruedinger@t-online.de  Fri Jun 26 12:32:27 1998
From: tms.ruedinger@t-online.de (Ihr Name)
Date: 26 Jun 1998 11:32:27 GMT
Subject: HP Instruments
Message-ID: <6n00sb$ntk$1@news02.btx.dtag.de>

Hi,
does anybody know if there's a newsgroup about HP-test & measurement
instruments?

 thank you
Fred Ruedinger

From nis@ccinet.ab.ca  Mon Jun 29 04:54:21 1998
From: nis@ccinet.ab.ca (nis@ccinet.ab.ca)
Date: 29 Jun 1998 03:54:21 -0000
Subject: Gamma-ray crawler
Message-ID: <19980629035421.26395.qmail@donar.teuto.de>

* This message was posted by John 

I would like to know the name and address of an internal gammaray crawler manufacture.
I think they are made in Germany but I don't have an adress or phone number.

Thanks 
-- 
-------------------==== Posted via NDT NewsWeb ====-----------------------
http://www.ndt.net/newsweb/newsweb.htm   Topics, Statistics, Search, Post

From tonys2@aol.com  Mon Jun 29 05:13:20 1998
From: tonys2@aol.com (TonyS2)
Date: 29 Jun 1998 04:13:20 GMT
Subject: FS ASTM RO Water Filter System (for Lab) Unused
Message-ID: <1998062904132000.AAA22518@ladder01.news.aol.com>

Leave FAX no for details
Tony
Alex Va

From mletzko@mpa.uni-stuttgart.de  Mon Jun 29 09:07:57 1998
From: mletzko@mpa.uni-stuttgart.de (Dr. Ulrich Mletzko)
Date: Mon, 29 Jun 1998 10:07:57 +0200
Subject: Elastodynamic Finite Integration Technique?
References: <6n50n9$o5q$1@jagalchi.cc.pusan.ac.kr>
Message-ID: <35974B5D.D870DF84@mpa.uni-stuttgart.de>

Sangwoo Choi wrote:
> 
> When I read papers, I saw this word - EFIT.
> 
> That is Elastodynamic Finite Integration Technique.
> 
> Ultrasonic wave propagation is simulated with this EFIT.
> 
> What is EFIT?
> 
> I want to know EFIT.
> 
> Is there any text book?
> 
> Give me information please.
> 

EFIT is applied (and developed) mainly by K. J. Langenberg from the
University of Kassel, Germany, with contributions by V. Schmitz,
Fraunhofer Institute for Nondestructive Testing, Saarbruecken, Germany.
Search the net, especially www.ndt.net, for those names. There are a lot
of confernce papers etc.

The modelling done by EFIT is very accurate. But it is a problem, that
you need ***very*** large computer resources to do the calculations. To
my best knowledge you need ***hours*** on mainframes or Crays. It's not
a business for todays workstations or PCs.

I think that the EFIT code is not available for free (the University of
Kassel and/or Prof. Langenberg and/or the German Federal Research
sponsors may have the rights).

Best regards
Uli Mletzko
State Materials Testing Institute,
University of Stuttgart, Germany.

From mletzko@mpa.uni-stuttgart.de  Mon Jun 29 09:13:12 1998
From: mletzko@mpa.uni-stuttgart.de (Dr. Ulrich Mletzko)
Date: Mon, 29 Jun 1998 10:13:12 +0200
Subject: Gamma-ray crawler
References: <19980629035421.26395.qmail@donar.teuto.de>
Message-ID: <35974C98.EE5A37F6@mpa.uni-stuttgart.de>

newsweb@ndt.net wrote:
> 
> * This message was posted by John 
> 
> I would like to know the name and address of an internal gammaray crawler manufacture.
> I think they are made in Germany but I don't have an adress or phone number.
> 

One of the major internal crawler manufacturer is
	Pipetronix, from Stutensee, Germany.
They are manufacturing mainly US crawlers for pipeline testing, but
they  might have also X-ray or gamma ray crawlers.

Search the web, they have a homepage.

Best regards
Uli Mletzko
State Materials Testing Institute,
University of Stuttgart, Germany.

From =?iso-8859-1?Q?Diego_Fl=F3rez?=" 


-----Mensaje original-----
De: newsweb@ndt.net 
Grupos de noticias: sci.techniques.testing.nondestructive
Para: nde@swrinde.nde.swri.edu 
Fecha: lunes, 29 de junio de 1998 07:50 a.m.
Asunto: Gamma-ray crawler


>* This message was posted by John 
>
>I would like to know the name and address of an internal gammaray crawler
manufacture.
>I think they are made in Germany but I don't have an adress or phone
number.
>
>Thanks
>--
>-------------------==== Posted via NDT NewsWeb ====-----------------------
>http://www.ndt.net/newsweb/newsweb.htm   Topics, Statistics, Search, Post



>TECNITEST is a company based in Madrid (Spain) that manufactures  highly
cost-effective gamma-ray internal crawlers. Visit, please, our veb page
www.tecnitest.com for more details and contact information.

Thank you.



From rd@ndt.net  Mon Jun 29 10:30:39 1998
From: rd@ndt.net (Rolf Diederichs)
Date: Mon, 29 Jun 1998 04:30:39 -0500 (CDT)
Subject: Gamma-ray crawler
Message-ID: <199806290930.EAA22523@swrinde.nde.swri.edu>

>From: newsweb@ndt.net
>Date: 29 Jun 1998 03:54:21 -0000
>To: nde@swrinde.nde.swri.edu
>Reply-To: nis@ccinet.ab.ca
>Newsgroups: sci.techniques.testing.nondestructive
>Subject: Gamma-ray crawler
>
>* This message was posted by John 
>
>I would like to know the name and address of an internal gammaray crawler
manufacture.
>I think they are made in Germany but I don't have an adress or phone number.
>
>Thanks 
>-- 
>-------------------==== Posted via NDT NewsWeb ====-----------------------
>http://www.ndt.net/newsweb/newsweb.htm   Topics, Statistics, Search, Post


I know a company here in the neighborhood ("Barkowski" ).
They make X-ray crawlers and gammaray crawlers.

Rolf Diederichs

------------
Copy of Page 66 of the 7th ECNDT Copenhagen EXCELLENT booklet!
It should be on the Internet :-)

C-TEC SYSTEMTECHNIK UND SERVICECEILEISTUNG FÜR D. WERKSTOFFPRÜFUNG GmbH 
· Stand no. 160
HeinrichstraBe 51 D-44536 Luenen Germany 
Tel: +49 (0) 231 9860-443 
Fax: +49 (0) 231 9860-569 

Radiographic Testing 
· X-ray
· X-ray Crawlers

Company Profile:
C-TEC developes and manufactures the pipeline-crawler-systems C200 and C400
for pipediameters from 8< -60<. We offer a complete system solution, setting
new superior standards for quality The components used and the light compact
size of the crawler systems make the C200 and C400 systems reliable and easy
to handle.
The maintenance is very easy worldwide because of manufacturing the
crawler-systems as a modular system and a check-up is possible by
hand-display on site. 
Furthermore, we distribute X-ray machines, which are outstanding in
reliability and quality. In the search for new ideas individual solutions to
problems are worked-out in co-operation with the customer Maintenance and
repair of NDT-equipment as well as consulting the use of complex testing
technology are carried out by our competent staff and make us leaders in our
field. 
------------------------------------------------------------
                            NDT.net                          
   The e-Journal of Nondestructive Testing & Ultrasonics    
                   Plus NDT online Exhibition               
                * NDTnet - http://www.ndt.net *             
------------------------------------------------------------
  NDT Internet Publishing        Tel:  +49(0)5221-769314    
  Rolf Diederichs                FAX:  +49(0)5221-769731    
  Tacheniusweg 8                 Email: rd@ndt.net          
  D-32052 Herford                ftp://www.ndt.net/incoming 




From rd@ndt.net  Mon Jun 29 10:41:40 1998
From: rd@ndt.net (Rolf Diederichs)
Date: Mon, 29 Jun 1998 04:41:40 -0500 (CDT)
Subject: Elastodynamic Finite Integration Technique?
Message-ID: <199806290941.EAA03345@coqui.ccf.swri.edu>

At the ECNDT in Copenhagen Dr. Rene Marklein 
(Kassel University- Dept Electrical Engineering)
received the EUROPEAN NDT Innovation Diploma on Basic research.

NDT.net received his file of 80 MByte! 
(it was not published in the ECNDT Proceedings - was it to big?)
We'll try to publish it ASAP.
Meanwhile Rene Marklein may be could explain us in 
a few words the basics of EFIT.

Rolf Diederichs

Rene Marklein's work: 
NDT related quantitative modelling of coupled Piezoelectric and Ultrasonic
Wave Phenomena Quantitative methods in Ultrasonic Non Destructive evaluation
requires more and more deep and fundamental physical understanding of
elastic wave propagation and scattering in solids and, consequently,
numerical codes to model these phenomena.

Starting from a team work which laid the foundation for a numerical
technique called EFIT (Elastodynamic Finite Integration Technique), R.
Marklein has substantially further developed and applied this code. The
latest scientific milestone comprises the inclusion of coupled piezoelectric
and ultrasonic wave phenomena to account explicitly for the modelling of the
transducer as a transformer of electrical quantities, i.e. voltage and
current, into elastodynamic quantities i.e. displacement and stress. 


>To: nde@coqui.ccf.swri.edu
>From: rd@ndt.net (Rolf Diederichs)
>Subject: Re: Elastodynamic Finite Integration Technique?
>Cc: woochoi@hyowon.cc.pusan.ac.kr (Sangwoo Choi)
>
>Find below information of the Ultrasonic Testing Encyclopedia on NDT.net
>Also you may use the search and enter the search term 'EFIT' or for related 
>fields use terms like 'simulation' or 'modelling'.
>
>Rolf Diederichs
>
>-----
>http://www.ndt.net/ut_az/ut_e/ut_e.htm#efit
>EFIT: 
>The Elastodynamic Finite Element Technique (EFIT) is an numerical code to
>model the propagation and
>scattering of elasic waves. 
>
>http://www.ndt.net/article/ut_az/ut_m/ut_m.htm#model
>modeling: 
>The benefit of mathematical modeling codes for modern NDT is well-known, as
>they are increasingly applied to simulate ultrasonic experiments in
>real-life inspection. They yield valuable information on the propagation of
>ultrasound and its interaction with defects and allow for visualization of
>sound fields and sensitivity zones of ultrasonic transducers. Modern
>versions of modeling codes - such as the Elastodynamic Finite Integration
>Technique (EFIT) and the generalized Point-Source-Synthesis (GPSS) - are
>able to provide quantitative results in form of echo dynamics and A-, B-, or
>C-scans. 
>
>http://www.ndt.net/article/ut_az/ut_m/info/model_bi.htm
>Ultrasonic Modeling (Simulation) 
>
>
>
>
>
>>When I read papers, I saw this word - EFIT.
>>
>>That is Elastodynamic Finite Integration Technique.
>>
>>Ultrasonic wave propagation is simulated with this EFIT.
>>
>>What is EFIT?
>>
>>I want to know EFIT.
>>
>>Is there any text book?
>>
>>Give me information please.
>>
>>Thanks in advance..
>>
>>--
>>	Material Strength And NonDestructive Evaluation Lab.
>>	Mechanical Design Engineering
>>	Pusan National University.
>>	South Korea
>>
>>
>>	E-Mail: woochoi@hyowon.cc.pusan.ac.kr
>>		woochoi@metric.pusan.ac.kr
>>		gundam@msnnde.me.pusan.ac.kr
>>	Homepage	http://hyowon.cc.pusan.ac.kr:8080/~woochoi
>>
>------------------------------------------------------------
>                            NDT.net                          
>   The e-Journal of Nondestructive Testing & Ultrasonics    
>                   Plus NDT online Exhibition               
>                * NDTnet - http://www.ndt.net *             
>------------------------------------------------------------
>  NDT Internet Publishing        Tel:  +49(0)5221-769314    
>  Rolf Diederichs                FAX:  +49(0)5221-769731    
>  Tacheniusweg 8                 Email: rd@ndt.net          
>  D-32052 Herford                ftp://www.ndt.net/incoming 
>
>
>
------------------------------------------------------------
                            NDT.net                          
   The e-Journal of Nondestructive Testing & Ultrasonics    
                   Plus NDT online Exhibition               
                * NDTnet - http://www.ndt.net *             
------------------------------------------------------------
  NDT Internet Publishing        Tel:  +49(0)5221-769314    
  Rolf Diederichs                FAX:  +49(0)5221-769731    
  Tacheniusweg 8                 Email: rd@ndt.net          
  D-32052 Herford                ftp://www.ndt.net/incoming 




From barter55@my-dejanews.com  Tue Jun 30 02:27:39 1998
From: barter55@my-dejanews.com (Bambi Arter)
Date: Mon, 29 Jun 1998 21:27:39 -0400
Subject: Portable gaussmeter
References: <19980622202514Z176787-28054+3631@smtpsrv2.techint.net>
Message-ID: <35983F0A.CCDA05A9@asnt.org>

Check out ASNT's web site, www.asnt.org.  There are two sections that have
vender information: the Corporate Community List and the NDT Electronic
Mall (Guide to Labs and Consultants).  There is also a section where you
can search by method and find vendors.  Go to the table of contents and
type in the method.  Good luck and if you need any help contact me at
barter@asnt.org.

Sincerely, Bambi Arter
               Assistant Librarian
               ASNT Headquarters

ALTSCHULER, Eduardo CINI wrote:

> Hi,
> we need a portable digital gaussmeter to measure active and residual AC
> and DC magnetic fields. Any recomendation on vendors or manufacturers
> will be highly appreciated.
>
> Eduardo Altschuler
> Center for Industrial Research
> email: sidedu@siderca.com



--
MZ



From pratibha_rg@hotmail.com  Mon Jun 29 15:49:40 1998
From: pratibha_rg@hotmail.com (pratibha_rg@hotmail.com)
Date: Mon, 29 Jun 1998 14:49:40 GMT
Subject: Artificial Intelligence in NDT - New E-Mail Discussion List
Message-ID: <6n89i4$66h$1@nnrp1.dejanews.com>

Dear Colleague !

I am happy to inform you that a new E-Mail Discussion Group / List has been
created for discussing the application of Artificial Intelligence in and the
creation of effective knowledge based systems for Nondestructive Testing.

The Draft Charter of the E-Mail Discussion Group
------------------------------------------------ * Use of Artificial
Intelligence and Robotics in Nondestructive Testing / Materials Evaluation *
Developmental Issues Relating to the Creation of Neural Networks, Fuzzy
Logic, Knowledge Based Systems Software / Hardware for Nondestructive Testing
/ Materials Evaluation * Application of Artificial Intelligence for practical
problems in Nondestructive Testing / Materials Evaluation * NDT Automation
with emphasis on Artificial Intelligence * And other related issues


Potential Issues for Discussion
-------------------------------
* The Role of AI and KBS in Effective NDT
* Most Appropriate ANNs for NDT
* Which is the best architecture for an NDT KBS ?
* Current KBS for NDT, their design, implementation and Performance
* A KBS for NDT Wish List
* Are there problems in NDT which can never be solved by AI ?
* The Importance of Common Sense, and the lack of it, in NDT KBS
* Is there a pattern in NDT problem solving for AI to exploit ?
* The use of internet, data fusion, visualisation, software agents in NDT
* Etc. Etc.


To Subscribe Please Visit
-------------------------
http://www.listbot.com/subscribe/DESKPACK

To Participate (after becoming a member), send message to
---------------------------------------------------------
DESKPACK@listbot.com


C.Rajagopalan,
Visiting Scientist,
Fraunhofer Institute for Nondestructive Testing,
University Building 37,
66123 Saarbruecken,
GERMANY

29th June 1998, Monday, 1615 hours CET

-----== Posted via Deja News, The Leader in Internet Discussion ==-----
http://www.dejanews.com/rg_mkgrp.xp   Create Your Own Free Member Forum

From pratibha_rg@hotmail.com  Mon Jun 29 15:50:40 1998
From: pratibha_rg@hotmail.com (pratibha_rg@hotmail.com)
Date: Mon, 29 Jun 1998 14:50:40 GMT
Subject: Artificial Intelligence in NDT - New E-Mail Discussion List
Message-ID: <6n89k0$6i3$1@nnrp1.dejanews.com>

Dear Colleague !

I am happy to inform you that a new E-Mail Discussion Group / List has been
created for discussing the application of Artificial Intelligence in and the
creation of effective knowledge based systems for Nondestructive Testing.

The Draft Charter of the E-Mail Discussion Group
------------------------------------------------ * Use of Artificial
Intelligence and Robotics in Nondestructive Testing / Materials Evaluation *
Developmental Issues Relating to the Creation of Neural Networks, Fuzzy
Logic, Knowledge Based Systems Software / Hardware for Nondestructive Testing
/ Materials Evaluation * Application of Artificial Intelligence for practical
problems in Nondestructive Testing / Materials Evaluation * NDT Automation
with emphasis on Artificial Intelligence * And other related issues


Potential Issues for Discussion
-------------------------------
* The Role of AI and KBS in Effective NDT
* Most Appropriate ANNs for NDT
* Which is the best architecture for an NDT KBS ?
* Current KBS for NDT, their design, implementation and Performance
* A KBS for NDT Wish List
* Are there problems in NDT which can never be solved by AI ?
* The Importance of Common Sense, and the lack of it, in NDT KBS
* Is there a pattern in NDT problem solving for AI to exploit ?
* The use of internet, data fusion, visualisation, software agents in NDT
* Etc. Etc.


To Subscribe Please Visit
-------------------------
http://www.listbot.com/subscribe/DESKPACK

To Participate (after becoming a member), send message to
---------------------------------------------------------
DESKPACK@listbot.com


C.Rajagopalan,
Visiting Scientist,
Fraunhofer Institute for Nondestructive Testing,
University Building 37,
66123 Saarbruecken,
GERMANY

29th June 1998, Monday, 1615 hours CET

-----== Posted via Deja News, The Leader in Internet Discussion ==-----
http://www.dejanews.com/rg_mkgrp.xp   Create Your Own Free Member Forum

From rd@ndt.net  Mon Jun 29 17:35:37 1998
From: rd@ndt.net (Rolf Diederichs)
Date: Mon, 29 Jun 1998 11:35:37 -0500 (CDT)
Subject: Portable gaussmeter
Message-ID: <199806291635.LAA18837@coqui.ccf.swri.edu>

Thanks for Bambi Arter's advice to search the ASNT Homepage.
Unfortunately the search turned out no results, something wrong?
If there is really something on the ASNT Homepage, so
please post a more specific advice on how to find it.

Rolf Diederichs

------
1. Search for: gaussmeter
Customer Listing by Description

               Sorry, no records were returned based on your input. 
               Please try again by clicking on your
               browser's back button.

               [ ASNT's Buyers Guide Home Page ] [ NDT Link Home Page ] 

2. Search for: magnetic fields
Customer Listing by Description

               Sorry, no records were returned based on your input. 
               Please try again by clicking on your
               browser's back button.

               [ ASNT's Buyers Guide Home Page ] [ NDT Link Home Page ] 


>Date: Mon, 29 Jun 1998 21:27:39 -0400
>From: Bambi Arter 
>Organization: ASNT
>
>Check out ASNT's web site, www.asnt.org.  There are two sections that have
>vender information: the Corporate Community List and the NDT Electronic
>Mall (Guide to Labs and Consultants).  There is also a section where you
>can search by method and find vendors.  Go to the table of contents and
>type in the method.  Good luck and if you need any help contact me at
>barter@asnt.org.
>
>Sincerely, Bambi Arter
>               Assistant Librarian
>               ASNT Headquarters
>
>ALTSCHULER, Eduardo CINI wrote:
>
>> Hi,
>> we need a portable digital gaussmeter to measure active and residual AC
>> and DC magnetic fields. Any recomendation on vendors or manufacturers
>> will be highly appreciated.
>>
>> Eduardo Altschuler
>> Center for Industrial Research
>> email: sidedu@siderca.com
>
>
>
>--
>MZ
>
>
------------------------------------------------------------
                            NDT.net                          
   The e-Journal of Nondestructive Testing & Ultrasonics    
                   Plus NDT online Exhibition               
                * NDTnet - http://www.ndt.net *             
------------------------------------------------------------
  NDT Internet Publishing        Tel:  +49(0)5221-769314    
  Rolf Diederichs                FAX:  +49(0)5221-769731    
  Tacheniusweg 8                 Email: rd@ndt.net          
  D-32052 Herford                ftp://www.ndt.net/incoming 




From surac@arrakis.es  Wed Jun 24 17:08:33 1998
From: surac@arrakis.es (Esteban Rojas)
Date: Wed, 24 Jun 1998 17:08:33 +0100
Subject: PUB: Book - Fuzzy Logic
Message-ID: <359124ff.0@news.arrakis.es>

Text in english and Spanish....  Texto en Ingles y Espanol

DISCOVER THE FUZZY LOGIC, WHICH ALLOWS MACHINES TO SIMULATE HUMAN REASONING. 
"LOGICA FUZZY PARA PRINCIPIANTES"

BOOK + CD-ROM


SUR A&C has written a book+CD-ROM, which deals with Fuzzy Logic and
Fuzzy Control. It is easy to read for not iniciated people. It
includes no math but a good set of fundamental concepts, examples and
applications.  You will be able to listen to the CD in english, german
or spanish.

Book in spanish.

Solicit your book here: surac@arrakis.es
Price: 40 U$A or 5.995 Ptas (incl. shipping)

Web URL: http://www.surac.com/LIBRO.htm

-------------------------------------------------------------------------

"III SYMPOSIUM ON FUZZY LOGIC APPLICATIONS"

Date: 5 - 6 Nov. 1.998

Supportd by Unesco and "Convenio Andres Bello"
Issued by the "Television Educativa Iberoamericana"
ATEI Through hispasat to 30 countries and 280 universities.

Visit our web site for more details

Web URL: http://www.surac.com/Symposium%2098

-------------------------------------------------------------------------

DESCUBRE LA LOGICA MATEMATICA QUE PERMITE A LA MAQUINA SIMULAR EL PENSAMIENTO HUMANO.
"LOGICA FUZZY PARA PRINCIPIANTES"

LIBRO + CD-ROM

SUR A&C ha realizado un libro+CD acerca de la LOGICA FUZZY
y del CONTROL FUZZY. Es un libro que todos podemos leer, ya que es para
no iniciados en el tema. No contiene formulas, solo ideas basicas y ejemplos.
El libro incluye un CD en el que usted podr=E1 optar por escuchar en espanol,
ingles o aleman y en su interior hay ejemplos que se complementa con 
las exposiciones del libro.

Enteramente realizado por SUR A&C y editado por Omron Electronics

SUR A&C y editado por Omron Electronics
Solicite su Libro+CD por e-mail: surac@arrakis.es
Precio: 40 U$A =F3 5.995 Ptas (incluidos gastos de envio)

------------------------------------------------------------------------

"III SYMPOSIUM DE APLICACIONES CON LOGICA DIFUSA"

El Certamen se desarrollar=E1 el 5 y el 6 de Noviembre de 1998
a las 12.00 am, meriadiano de Greenwich.
CON EL APOYO DE LA UNESCO Y EL"CONVENIO ANDRES BELLO"
El certamen ser=E1 transmitido por la A.Televisi=F3n Educativa Iberoamericana
ATEI

En se presentaran trabajos de diferentes centros de investigacion,
universidades iberoamericanas y SUR A&C.

Web URL: http://www.surac.com/Symposium%2098


SUR A&C Automatizacion y Control S.L.
Jose Esteban Rojas Nieto
Albareda 18
35008 Las Palmas de Gran Canaria
Espana
tel.(34) 928-49-0660
tel.(34) 928-49-0661
tel.(34) 928-49-0662
fax(34) 928-27-6725
e-mail: surac@arrakis.es
http://www.surac.com

From marklein@tet.e-technik.uni-kassel.de  Tue Jun 30 08:30:05 1998
From: marklein@tet.e-technik.uni-kassel.de (Dr. Rene' Marklein)
Date: Tue, 30 Jun 1998 09:30:05 +0200
Subject: Elastodynamic Finite Integration Technique?
References: <6n50n9$o5q$1@jagalchi.cc.pusan.ac.kr>
Message-ID: <359893FD.53088E11@tet.e-technik.uni-kassel.de>

Sangwoo Choi wrote:

> When I read papers, I saw this word - EFIT.
>
> That is Elastodynamic Finite Integration Technique.
>
> Ultrasonic wave propagation is simulated with this EFIT.
>
> What is EFIT?
>
> I want to know EFIT.
>
> Is there any text book?
>
> Give me information please.
>
> Thanks in advance..
>
> --
>         Material Strength And NonDestructive Evaluation Lab.
>         Mechanical Design Engineering
>         Pusan National University.
>         South Korea
>
>         E-Mail: woochoi@hyowon.cc.pusan.ac.kr
>                 woochoi@metric.pusan.ac.kr
>                 gundam@msnnde.me.pusan.ac.kr
>         Homepage        http://hyowon.cc.pusan.ac.kr:8080/~woochoi


Dear Mr. Choi:

EFIT,  the Elastodynamic Finite Integration Technique,  is a numerical
modeling tool
in the time domain based on the Finite Integration Technique (FIT).

Also, EFIT is a  Software tool running on  PC's with a Pentium under
Linux and
Windows NT,  Workstation's (SGI like Origion 200,  IBM like 580) and so
on.
 In general you do not need a Cray computer. But this depends on your
NDT problem
 to simulate.

The Finite Integration Technique (FIT) is applied to the governing
equation of linear
elastodynamics in integral form.

Essential features of the FI technique are:

* integrals are approximated via the midpoint rule
* staggered grid in space and time
* consistent material discretization
* FIT is a generalization of the Finite Volume Method (FVM)
   used in  fluid dynamics

Essential features of EFIT:

* consistent and stable code
* handling of arbitrary materials
     - inhomogeneous dissipative anisotropic materials
* handling of arbitrary geometries
     - IGES interface to comercial CAD tools


If you have further questions please do not hesitate to contact me.

Kind regards.

 Rene' Marklein


From NelliganT@panametrics.com  Tue Jun 30 16:10:35 1998
From: NelliganT@panametrics.com (Tom Nelligan)
Date: Tue, 30 Jun 1998 11:10:35 -0400
Subject: acoustic microscopy of specimens with curved shape
Message-ID: <00027BCD.003301@panametrics.com>

     I don't have any specific research papers to offer at the moment, but 
     my organization has a lot of experience with high resolution acoustic 
     imaging at frequencies up to 150 MHz. Depending on the nature of the 
     curvature and the other application requirements, we either use 
     contour-following scanners to maintain a specific beam orientation 
     across the target (for example, in the case of turbine blades), or in 
     the case of small cylindrical targets we use very sharply focused 
     transducers with a very small spot size and rotate the part while 
     scanning axially. This can, of course, require extremely precise 
     fixturing when dealing with small, sharply curved targets.
     
     If you can explain in detail what your test requirements are, I may be 
     able to offer more specific advice on setup or transducer selection.
     
     --Tom Nelligan
     Senior Applications Engineer
     Panametrics, Inc.


______________________________ Reply Separator _________________________________
Subject: acoustic microscopy of specimens with curved shape
Author:  "X.E.Gros"  at Internet
Date:    6/27/98 5:19 PM


Dear all,
     
Could anyone let me know of any publications on the use of acoustic microscopy 
for testing specimens with curved shape ?
     
In advance than you.
     
     
Xavier
     
     

From henryk@microcosm.com  Tue Jun 30 20:05:16 1998
From: henryk@microcosm.com (Henryk Malak)
Date: Tue, 30 Jun 1998 15:05:16 -0400
Subject: New Website!
Message-ID: <359936EC.A82F51A2@microcosm.com>


--------------F1B9F10F2C1F656F1FA74084
Content-Type: text/plain; charset=us-ascii
Content-Transfer-Encoding: 7bit

                   A NEW RESOURCE FOR CONFOCAL USERS!

Microcosm, Inc., specializing in confocal microscopy, multi-photon
imaging and time-resolved spectroscopy applications is pleased to
announce the opening of its new web site http:/www.microcosm.com.  The
purpose of this site is to provide useful information to users of
confocal systems and to become a news center for hot imaging topics and
startling new images. Microcosm is aggressively seeking your
contribution of quality content to this site

See you there!

Henryk Malak
Research Director


--------------F1B9F10F2C1F656F1FA74084
Content-Type: text/html; charset=us-ascii
Content-Transfer-Encoding: 7bit




A NEW RESOURCE FOR CONFOCAL USERS!




Microcosm, Inc., specializing in confocal microscopy, multi-photon imaging
and time-resolved spectroscopy applications is pleased to announce the
opening of its new web site http:/www.microcosm.com.  The purpose
of this site is to provide useful information to users of confocal systems
and to become a news center for hot imaging topics and startling new images.
Microcosm is aggressively seeking your contribution of quality content
to this site


See you there!


Henryk Malak

Research Director

 

--------------F1B9F10F2C1F656F1FA74084--