From rdk@corrosionsource.com Tue Jan 2 19:07:23 2001 From: rdk@corrosionsource.com (Russell D. Kane) Date: Tue, 2 Jan 2001 13:07:23 -0600 Subject: FREE Online Corrosion NEws, Discussions and Solutions Message-ID: Check out CorrosionSource, the largest and most active corrosion resource site on the Internet offering community, content and commerce at: http://www.corrosionsource.com CorrosionSource has over 40 discussion/news forums focusing on industry applications, materials of construction, and corrosion type including: Air Pollution Cathodic Protection Coatings Corrosion and Computer Technologies Corrosion Monitoring and Control Cost of Corrosion Electric Power Plants Electrochemistry Fracture Mechanics General Corrosion High Temperature Corrosion Inhibition and Chemical Treatment Microbiologically Induced Corrosion Multiphase Flow Non-Metallics Oil and Gas Production Open Discussion Forum Pipeline Rehabilitation Recycling Steel Reinforced Concrete Corrosion Stress Corrosion Cracking Transportation Waste Handling Corrosion Under Insulation (CUI) Finishing and Surface Treatments Galvanic Corrosion Hydrogen Embrittlement Weld Corrosion Electric Power - Geothermal Electric Power - Nuclear Water Pollution Petroleum Refining Chemical Processing Marine Applications Water and Utilities Manufacturing Mining and Metals Production Aerospace/Aircrafts Pulp and Paper Civil Infrastructure Food and Packaging Electronics & Telecom Household Corrosion Science Fair Projects http://www.corrosionsource.com/discussions.htm From davewilkes@my-deja.com Wed Jan 3 08:39:30 2001 From: davewilkes@my-deja.com (davewilkes@my-deja.com) Date: Wed, 03 Jan 2001 08:39:30 GMT Subject: FREE Online Corrosion NEws, Discussions and Solutions References: Message-ID: <92uog2$jrv$1@nnrp1.deja.com> We were so impressed with Corrosion source on our first visit last year, that we immediately added it to our list of useful sites at NDTCabin. If you have not seen the site before, make sure you don't miss it. You might also want to check out NDTCabin's new site layout for 2001 http://www.ndtcabin.com Hope you all have a good new year. Dave Wilkes www.ndtcabin.com "The internet magazine for ndt technicians" Sent via Deja.com http://www.deja.com/ From cwsouth@telusplanet.net Thu Jan 4 03:46:51 2001 From: cwsouth@telusplanet.net (Clark Southoff) Date: Thu, 04 Jan 2001 03:46:51 GMT Subject: Coal Seam Detection -- Any Ideas? References: <3A536DFF.C7C4B717@cnde.iastate.edu> Message-ID: <3A53F22C.8B4C83B@telusplanet.net> Sam: Coal has a different x-ray absorption spectrum as well as a different neutron capture. 1. A simple robust devise can be built using a gamma back scatter, 2. Neutron-thermal( AM-241) capture and increase/decrease of gamma emission, 3. Natural KUT ( potassium, thorium and uranium) content will give a specific signature at certain energies. The latter is in use in a subsurface coal mine. Contact me privately for further details. Best regards Clark Southoff Technology Wranglers Inc. Calgary, Alberta, Canada Sam Wormley wrote: > From Private Email: > > I am looking into the feasibility of using a NDE application in Coal > Mining operations. Our miner is being designed to cut into a high wall > from a bench and cut coal from a seam as thin as 35" high. In doing so, > it is very important for us to keep in the seam as we cut into the wall > and travel up to 1000' into the hillside. 20 > > To keep in the seam, having an effective sensor on the mining machine in > the hole as we cut would be just the ticket. We are looking into video > cameras, IR and NVG applications, but the amount of coal dust and water > being sprayed is a real problem. I would like to investigate the > possibility of having a sensor that would be able to see the difference > from coal and the rock above and below the seam. The coal is very black > and less dense with most of the sedimentary rock above and below seam is > usually a lighter tan colored and very dense rock. So maybe simple > ultrasonic sensor would work to detect the thickness of coal left in the > ceiling and floor as we cut. It doesn't need to fancy, just let us know > when it starts getting into the rock. > > Any Ideas? > > Thanks and Happy New Year, > > Greg Barber > RAHCO International > Spokane, WA > > 509-467-0770 > > -----= Posted via Newsfeeds.Com, Uncensored Usenet News =----- > http://www.newsfeeds.com - The #1 Newsgroup Service in the World! > -----== Over 80,000 Newsgroups - 16 Different Servers! =----- From qdwwhj@worldex.com Wed Jan 3 15:21:19 2001 From: qdwwhj@worldex.com (qdwwhj@worldex.com) Date: 3 Jan 2001 15:21:19 GMT Subject: FREE & EASY PICTURES! NO BULL SHIT! 6327 Message-ID: <92vg1f$eub$28683@venus.telepac.pt> http://www.geocities.com/schweppes123/index.html http://www.geocities.com/schweppes123/index.html http://www.geocities.com/schweppes123/index.html http://www.geocities.com/schweppes123/index.html bitmnyrmnmxrknegxphysolshxncuvvhrugichciswwdxmvkzwxmviczqwolehsyvxzpndbufpgsfhhnkjhdwkywrdxcxvo From W.Bicz@optel.com.pl Fri Jan 5 13:28:27 2001 From: W.Bicz@optel.com.pl (Wieslaw Bicz) Date: Fri, 05 Jan 2001 14:28:27 +0100 Subject: Coal Seam Detection -- Any Ideas? References: <3A536DFF.C7C4B717@cnde.iastate.edu> Message-ID: <3A55CBFA.6CC84F09@optel.com.pl> Sam Wormley wrote: > From Private Email: > > I am looking into the feasibility of using a NDE application in Coal > Mining operations. Our miner is being designed to cut into a high wall > from a bench and cut coal from a seam as thin as 35" high. In doing so, > it is very important for us to keep in the seam as we cut into the wall > and travel up to 1000' into the hillside. 20 > > To keep in the seam, having an effective sensor on the mining machine in > the hole as we cut would be just the ticket. We are looking into video > cameras, IR and NVG applications, but the amount of coal dust and water > being sprayed is a real problem. I would like to investigate the > possibility of having a sensor that would be able to see the difference > from coal and the rock above and below the seam. The coal is very black > and less dense with most of the sedimentary rock above and below seam is > usually a lighter tan colored and very dense rock. So maybe simple > ultrasonic sensor would work to detect the thickness of coal left in the > ceiling and floor as we cut. It doesn't need to fancy, just let us know > when it starts getting into the rock. > > Any Ideas? Ultrasound alone would be probably not good enough - the difference in reflection between coal and rock would be to small to detect. But I think, some acousto-optic method could be interesting. I have some ideas, that could be interesting but it would be necessary to test them. First tests won't be very expensive. Wieslaw Bicz -----------========== OPTEL sp. z o.o. ===========------------------- -----===== R&D: Ultrasonic Technology/Fingerprint Recognition ====------- ul. Otwarta 10a PL 50-212 Wroclaw Tel.: +48 71 3296853ext23 Fax.: 3296852 -----==== mailto:W.Bicz@optel.com.pl -=- http://www.optel.com.pl ====----- From derrick.hongerholt@asd.bfg.com Fri Jan 5 14:41:37 2001 From: derrick.hongerholt@asd.bfg.com (Derrick Hongerholt) Date: Fri, 05 Jan 2001 08:41:37 -0600 Subject: *Carbon Dioxide Question* Message-ID: Hello, Can anyone explain to me why ultrasound at 150 kHz does not seem to propagate in an oven that uses Carbon Dioxide as the cooling agent. We are testing a level sensor and changed the oven cooling to Carbon Dioxide and now all the sensors fail because the return signal has disappeared. I seem to remember running across why this is some time ago but can't recall exactly why. Regards, Derrick =============================== Derrick D. Hongerholt, Ph.D. Principal Engineer BFGoodrich Advanced Sensors Technical Center 14300 Judicial Road Burnsville, MN 55306-4898 Phone: 952-892-4588 Fax: 952-892-4800 http://www.bfg-sensors.com/ =============================== "It is nice to be important, But more important to be nice!" From W.Bicz@optel.com.pl Fri Jan 5 15:39:28 2001 From: W.Bicz@optel.com.pl (Wieslaw Bicz) Date: Fri, 05 Jan 2001 16:39:28 +0100 Subject: *Carbon Dioxide Question* References: Message-ID: <3A55EAB0.F60D0B87@optel.com.pl> Derrick Hongerholt wrote: > Hello, > > Can anyone explain to me why ultrasound at 150 kHz does not seem to propagate in an oven that uses Carbon Dioxide as the cooling agent. > > We are testing a level sensor and changed the oven cooling to Carbon Dioxide and now all the sensors fail because the return signal has disappeared. I seem to remember running across why this is some time ago but can't recall exactly why. > The attenuation in carbon dioxide is much higher than in the air. I have no exact data, but it seems to be about 40 times higher at 150 kHz. Wieslaw Bicz -----------========== OPTEL sp. z o.o. ===========------------------- -----===== R&D: Ultrasonic Technology/Fingerprint Recognition ====------- ul. Otwarta 10a PL 50-212 Wroclaw Tel.: +48 71 3296853ext23 Fax.: 3296852 -----==== mailto:W.Bicz@optel.com.pl -=- http://www.optel.com.pl ====----- From kottenhahn@icdd.com Fri Jan 5 17:35:17 2001 From: kottenhahn@icdd.com (kottenhahn@icdd.com) Date: Fri, 05 Jan 2001 17:35:17 GMT Subject: ICDD® 2001 X-ray Clinics for 2001 Message-ID: <9350kl$rlp$1@nnrp1.deja.com> ICDD® 2001 X-ray Clinics The International Centre for Diffraction Data announces its X-ray clinic schedule for 2001. Fundamentals of X-ray Fluorescence Spectrometry, April 30-May 4, 2001 Advanced Methods in X-ray Fluorescence Spectrometry, May 7-11, 2001 Fundamentals of X-ray Powder Diffraction, June 4-8, 2001 Advanced Methods in X-ray Powder Diffraction, June 11-15, 2001 For information contact: Education Coordinator International Centre for Diffraction Data 12 Campus Boulevard, Newtown Square, PA 19073 Tel: (610) 325-9814 Fax: (610) 325-9823 E-mail: clinics@icdd.com Web-site: http://www.icdd.com/education/clinics.htm Web-site: www.dxcicdd.com Sent via Deja.com http://www.deja.com/ From kottenhahn@icdd.com Fri Jan 5 19:46:24 2001 From: kottenhahn@icdd.com (kottenhahn@icdd.com) Date: Fri, 05 Jan 2001 19:46:24 GMT Subject: The International Centre for Diffraction Data announces the Call for Papers for the 50th Annual Denver X-ray Conference. Message-ID: <9358ac$2ta$1@nnrp1.deja.com> 50th Annual Denver X-ray Conference Celebration! The International Centre for Diffraction Data announces the Call for Papers for the 50th Annual Denver X-ray Conference. 50th Annual Denver X-ray Conference July 30-August 3, 2001 Sheraton Steamboat Resort, Steamboat Springs, Colorado, U.S.A. Call For Papers; deadline March 16, 2001. For information contact: Conference Coordinator International Centre for Diffraction Data 12 Campus Boulevard, Newtown Square, PA 19073 Tel: (610) 325-9814 Fax: (610) 325-9823 E-mail: dxc@icdd.com Web-site: www.dxcicdd.com Sent via Deja.com http://www.deja.com/ From rocky@xdcr.com Fri Jan 5 22:49:06 2001 From: rocky@xdcr.com (RAD) Date: Fri, 5 Jan 2001 14:49:06 -0800 Subject: *Carbon Dioxide Question* References: Message-ID: As pointed out CO2 has more attenuation than air. There are few things that can be done with CO2. You can increase the pressure, this may not be possible in your situation, and may not help enough to be useful. If you can use other gases, then Helium and Argon have substantially better attenuation than air. You didn't mention temperature but that also influences attenuation. Going to a lower frequency is also a possibility. Attenuation in gases goes as the square of the frequency, so halving the frequencies gains 4 times in attenuation. In regard to your question of why. I believe tri-atomic gases have more degrees of freedom and therefore vibrate in more modes. This increases the ways coherent sound can be degraded to heat and hence increases the attenuation. There are probably other factors I don't know as well. Regards, Robert (Rocky) A. Day Second Sound Ultrasonic Systems 220 Gates Street San Francisco, CA 94110 (415) 647-0625 At 8:41 -0600 1/5/01, Derrick Hongerholt wrote: >Hello, > >Can anyone explain to me why ultrasound at 150 kHz does not seem to >propagate in an oven that uses Carbon Dioxide as the cooling agent. > >We are testing a level sensor and changed the oven cooling to Carbon >Dioxide and now all the sensors fail because the return signal has >disappeared. I seem to remember running across why this is some >time ago but can't recall exactly why. > >Regards, > >Derrick > >=============================== >Derrick D. Hongerholt, Ph.D. >Principal Engineer >BFGoodrich Advanced Sensors Technical Center >14300 Judicial Road >Burnsville, MN 55306-4898 >Phone: 952-892-4588 >Fax: 952-892-4800 >http://www.bfg-sensors.com/ >=============================== >"It is nice to be important, >But more important to be nice!" From mail2news-20010106-uk.rec.scouting@anon.lcs.mit.edu Sat Jan 6 18:00:21 2001 From: mail2news-20010106-uk.rec.scouting@anon.lcs.mit.edu (Simon Roberts 4662) Date: 6 Jan 2001 18:00:21 GMT Subject: Test only [9b2] Message-ID: This is a LOCAL news group for LOCAL people. Keep it pure and LOCAL. ***WARNING***WARNING***WARNING*** Your news group has been taken over by control freaks, charter-zealots and very very very sad bastards.You may well ask what does this mean for your group! Think of Royston-Vasey with Edward and Tubs in their little local store for local people...there you have it!! ***WARNING***WARNING***WARNING*** {9b2} From rdk@corrosionsource.com Sun Jan 7 19:39:54 2001 From: rdk@corrosionsource.com (Russell D. Kane) Date: Sun, 7 Jan 2001 13:39:54 -0600 Subject: e-Journal of Nondestructive Testing & Ultrasonics Message-ID: The e-Journal of Nondestructive Testing & Ultrasonics NDTnet provides online information for the nondestructive testing professions on the Internet. The information is presented as an electronic Journal with monthly issues featuring topical professional articles. The Journal offers reliable, useful knowledge, information and data collections on NDT technology, collected and managed in a database form. NDTnet maximizes opportunities for users to meet, expand their networks of professional contacts, and participate in online workshops. For more information, go to: http://www.corrosionsource.com From rsbdeb@enter.net Mon Jan 8 04:06:16 2001 From: rsbdeb@enter.net (Ray Bowen) Date: Mon, 08 Jan 2001 04:06:16 GMT Subject: reflection coefficient question Message-ID: Experienced People: I'm aware that certain materials properties may be determined using ultrasound techniques, such as determining the acoustic impedance of a sample material. I am interested in learning more about this technique, but I haven't been able to find detailed information on it. Specifically, I have a project coming up that may be able to make use of material acoustic impedance properties, but I need to find out just how precisely can acoustic impedance be determined, and what method would be most effective to do so? Is there anyone who can me? From W.Bicz@optel.com.pl Mon Jan 8 12:57:13 2001 From: W.Bicz@optel.com.pl (Wieslaw Bicz) Date: Mon, 08 Jan 2001 13:57:13 +0100 Subject: reflection coefficient question References: Message-ID: <3A59B929.E4CF1C8C@optel.com.pl> Ray Bowen wrote: > Experienced People: > > I'm aware that certain materials properties may be determined using > ultrasound techniques, such as determining the acoustic impedance of a > sample material. > > I am interested in learning more about this technique, but I haven't been > able to find detailed information on it. > > Specifically, I have a project coming up that may be able to make use of > material acoustic impedance properties, but I need to find out just how > precisely can acoustic impedance be determined, and what method would be > most effective to do so? > > Is there anyone who can me? If you use only one frequency, it is relatively easy to measure amplitude with 16 or even 24 bits and time of flight with 1ns. Higher accuracy is possible but more expensive. For example: using our standard equipment you can measure amplitude with 12 bits and tof with 1ns (or even 100ps). Wieslaw Bicz -----------========== OPTEL sp. z o.o. ===========------------------- -----===== R&D: Ultrasonic Technology/Fingerprint Recognition ====------- ul. Otwarta 10a PL 50-212 Wroclaw Tel.: +48 71 3296853ext23 Fax.: 3296852 -----==== mailto:W.Bicz@optel.com.pl -=- http://www.optel.com.pl ====----- From RSCK@eee.rgu.ac.uk Mon Jan 8 15:24:09 2001 From: RSCK@eee.rgu.ac.uk (Konstantinos Christidis) Date: Mon, 8 Jan 2001 15:24:09 -0000 Subject: reflection coefficient question Message-ID: <3A59DB99.15668.D7849A@localhost> Ray Bowen wrote: > Experienced People: > > I'm aware that certain materials properties may be determined using > ultrasound techniques, such as determining the acoustic impedance of a > sample material. > > I am interested in learning more about this technique, but I haven't been > able to find detailed information on it. > > Specifically, I have a project coming up that may be able to make use of > material acoustic impedance properties, but I need to find out just how > precisely can acoustic impedance be determined, and what method would be > most effective to do so? > > Is there anyone who can me? Try to get the followings papers, I beleive that you will find them interesting: [1] 'Ultrasonic Feature Extraction Techniques For Characterisation and Quantification of Scales in Petroleum Pipelines', Proceedings of the conference IEEE Ultrasonic ‘98, Japan, October (1998), pp. 859-864. [2] 'Novel Techniques for Down-hole material characterisation', IEE Colloquium on ‘On-line monitoring techniques for the offshore industry, 2 June (1999), Aberdeen, pp. 11/1-11/4. [3] 'Material characterisation in situ using ultrasound', IEEE proceedings of the IMTC conference, 1-4 May, (2000) Baltimore, USA, pp. 483-488. Regards K. Christidis ==================================== Dr. Konstantinos Christidis Department of Electronic & Electrical Engineering The Robert Gordon University Schoolhill Aberdeen AB1 1FR Great Britain e-mail: rsck@eee.rgu.ac.uk tel. +44 1224 262469 ext. 2469 ===================================== From avnews@_020.co.uk_ Sat Jan 6 06:35:45 2001 From: avnews@_020.co.uk_ (Developers Team) Date: 6 Jan 2001 06:35:45 GMT Subject: Welcome to Postman - your new powerful posting tool ! Message-ID: <936ec1$3np79@rain.i-cable.com> Thank you for trying new 1.2.2 release of Postman. This is demo version of the program. It functions as the full commercial version in common, but has one important restriction: you can post only to 781 newsgroups included to the demo storage. All newsgroups were checked for their existence on January 16, 2000. Please see Help section "Getting Started" to get answers to your first questions related to the program usage. From davidb@brtinc.com Mon Jan 8 20:23:42 2001 From: davidb@brtinc.com (David Bongiovanni) Date: Mon, 08 Jan 2001 12:23:42 -0800 Subject: Extended Company Listings on NDT.org Message-ID: <3A5A21CE.ACBB1@brtinc.com> NDT.org is pleased to announce the Extended Company Listing service allowing exposure to our community of Nondestructive Testing and Inspection professionals. This service allows you to add a listing describing your company under one or more specific categories and provides access to real-time reports. These reports contain information about how many people access your listing and the link to your own corporate web site. This combination of a targeted audience and real-time feedback allows you to quantify the success of your advertising dollars. For more information about this service, please see the Extended Company Listing information page at http://www.ndt.org/html_nav.asp?ObjectID=4068 or call us at NDT.org at 888.278.8804. You may browse or search our list of over 400 NDT and Inspection companies at http://www.ndt.org/category.asp?ObjectID=4075. Sincerely, David Bongiovanni Webmaster, NDT.org From rsbdeb@enter.net Tue Jan 9 12:31:36 2001 From: rsbdeb@enter.net (Ray Bowen) Date: Tue, 09 Jan 2001 12:31:36 GMT Subject: reflection coefficient question References: , <3A59EAC9.A6639FB2@cnde.iastate.edu> Message-ID: Thanks for the references: I get the impression, from this and the other posts, that the values I can obtain via signal measurements can be made to arbitrary degrees of precision and accuracy, limited only by the amount of time and money I can throw at the problem. Unfortunately this is generally true of all things. Is there any way of quantifying the answers? If I am to measure the reflection coefficients to a high degree of accuracy, then will I not need a very precise density reference material? Can someone suggest what such a material might be and where it can be obtained? I may need to measure the density of a sample at a wide range of field temperatures, not simply in a lab under controlled conditions. Will this introduce exorbitant costs, or introduce undue uncertainty into the value of the reference material? Thanks again, to everyone who has responded to my original post. Sam Wormley wrote in message news:3A59EAC9.A6639FB2@cnde.iastate.edu... > Ray Bowen wrote: > > > > Experienced People: > > > > I'm aware that certain materials properties may be determined using > > ultrasound techniques, such as determining the acoustic impedance of a > > sample material. > > > > I am interested in learning more about this technique, but I haven't been > > able to find detailed information on it. > > > > Specifically, I have a project coming up that may be able to make use of > > material acoustic impedance properties, but I need to find out just how > > precisely can acoustic impedance be determined, and what method would be > > most effective to do so? > > > > Is there anyone who can me? > > Krautkrämer & Krautkrämer, "Ultrasonic Testing of Materials" 4th, fully > revised edition, Spriger-Verlag (1990), pp 563-567 has a definitive section > on Formulae for Reflection and Transmission Coefficients. Also see simple > materials targeted at community college instruction at: > > http://www.cnde.iastate.edu/ncce/UT_CC/Sec.2.6/Sec.2.6.html > http://www.cnde.iastate.edu/ncce/UT_CC/Sec.2.7/Sec.2.7.html > > > -----= Posted via Newsfeeds.Com, Uncensored Usenet News =----- > http://www.newsfeeds.com - The #1 Newsgroup Service in the World! > -----== Over 80,000 Newsgroups - 16 Different Servers! =----- From david_forsyth_nojunkmail@ncf.ca Wed Jan 10 15:20:23 2001 From: david_forsyth_nojunkmail@ncf.ca (David S Forsyth) Date: Wed, 10 Jan 2001 10:20:23 -0500 Subject: Coal Seam Detection -- Any Ideas? References: <3A536DFF.C7C4B717@cnde.iastate.edu> Message-ID: <3A5C7DB7.D648B3A7@nrc.ca-remove> The NMR methods sound interesting. Perhaps microwave would be potential candidate as well? Reza Zoughi at Colorado State should be able to comment on that. Dave F. --------------------------------- David S. Forsyth Institute for Aerospace Research National Research Council Canada Building M14, 1191 Montreal Road Ottawa, ON Canada K1A 0R6 tel 613-991-0693 fax 613-952-7136 email david.forsyth@nrc.ca --------------------------------- Sam Wormley wrote: > From Private Email: > > I am looking into the feasibility of using a NDE application in Coal > Mining operations. From kottenhahn@icdd.com Wed Jan 10 17:18:24 2001 From: kottenhahn@icdd.com (kottenhahn@icdd.com) Date: Wed, 10 Jan 2001 17:18:24 GMT Subject: The ICDD Announces the Recipients of the 2001 Ludo Frevel Crystallography Scholarships Message-ID: <93i5gl$38i$1@nnrp1.deja.com> The ICDD Announces the Recipients of the 2001 Ludo Frevel Crystallography Scholarships For more information please see: http://www.icdd.com/resources/awards/frevel.htm The ICDD Ludo Frevel Crystallography Scholarship Committee has selected six winners for the 2001 Scholarship program. They are: James Lettieri, of The Pennsylvania State University, in University Park, Pennsylvania, with research involving "Ferroelectric Anisotropy and Integration of SrBi2Ta2O9;" Meitian Wang, of the University of Alberta, in Edmonton, Alberta, Canada, with exploration into "Developing Structural Principles for New Ternary Metal-Rich Pnictides;" Christina DeWitt, of the Oklahoma Medical Research Foundation, in Oklahoma City, Oklahoma, with major interest in "Determining the Structures of an Fc Derived from a Human IgG1 () Antibody;" Christine McCracken, of the University of Manitoba, in Winnipeg, Manitoba, Canada, with studies focusing on "The Crystallography and Chemistry of Tourmaline;" Maxim V. Lobanov, of the Moscow State University, in Moscow, Russia, with research concerning "Structural Studies of Low-Dimensional Magnetic Mn Oxides as Possible CMR Materials;" and Jennifer Stone, of the Oregon State University, in Corvallis, Oregon, who’s investigating "Structural Studies of High-Power Optical Materials." The ICDD will present each of these students with a check for $2,250 to help them continue their studies in their selected fields of crystallographic research. www.icdd.com Sent via Deja.com http://www.deja.com/ From raustin@tri-austin.com Thu Jan 11 13:21:40 2001 From: raustin@tri-austin.com (Russell Austin) Date: Thu, 11 Jan 2001 07:21:40 -0600 Subject: Coal Seam Detection -- Any Ideas? Message-ID: FYI, Reza Zoughi is no longer at ColoState. He has moved to U of Missouri at Rolla. I think he can be reached at: R. Zoughi University of Missouri-Rolla 224 Emerson Electric Company Hall 1870 Miner Circle Rolla, MO 65409-0040 (573) 341-4656 (573) 341-4532 (fax) zoughi@ece.umr.edu Tell him I said hello. Russell Austin NTIAC >>> David S Forsyth 01/10/01 09:20AM >>> The NMR methods sound interesting. Perhaps microwave would be potential candidate as well? Reza Zoughi at Colorado State should be able to comment on that. Dave F. --------------------------------- David S. Forsyth Institute for Aerospace Research National Research Council Canada Building M14, 1191 Montreal Road Ottawa, ON Canada K1A 0R6 tel 613-991-0693 fax 613-952-7136 email david.forsyth@nrc.ca --------------------------------- Sam Wormley wrote: > From Private Email: > > I am looking into the feasibility of using a NDE application in Coal > Mining operations. From reggie@ndtech.net Thu Jan 11 19:53:28 2001 From: reggie@ndtech.net (Reggie Cross) Date: Thu, 11 Jan 2001 19:53:28 GMT Subject: newsletter from NDTech Message-ID: <3A5E0F39.A67BC678@ndtech.net> The NDTech Newsletter is published periodically by NDTech, a nondestructive consulting firm . This newsletter is distributed by email and covers brief descriptions of some useful but less publicized radiographic, ultrasonic, penetrant, magnetic particle, and other NDT methods. You will automatically receive the newsletter, at no cost, by sending an email to info@ndtech.net for subscription. The following are the highlights from the latest newsletter: 1. News from NTIAC 2. Publications 3. Price List of NTIAC Publications 4. New Weld Inspection Publication 5. Offshore NDT Information Web Locations 6. Penetrant Inspection, Hot or Cold, How, When, and Why? 7. NDE Industry News 8. Meetings and Symposia Calendar For the previous archived newsletters, please visit the NDTech website at http:// www.ndtech.net. From cbr@igcar.ernet.in Mon Jan 15 20:47:19 2001 From: cbr@igcar.ernet.in (C.Babu Rao) Date: Mon, 15 Jan 2001 15:47:19 -0500 (GMT) Subject: 8th ECS&Image Analysis Message-ID: MOST-IMPORTANT ================ Dear Colleague 8th European Congress for Stereology and Image Analysis will be held in France during Sept 4-7, 2001. I have received the details late. This is an important forum where you work on Image Analysis will be appreciated most. Please send one or two papers. Even if we cannot attend it is important that , we communicate to the seminar. Kindly act fast. Jan 19 2001 is the last date for abstracts. Communicate the titles first to Scientific Secretariat of 8th ECS&Image Analysis C/o Muriel BORE Laboratoire Energetique et Phenomenes de Transfert L.E.P.T., ENSAM Esplanade des Arts er Metiers 33405 TALENCE cedex, France Send abstracts immediately. Their E-mail address is ecs2001@lept-ensam.u-bordeaux.fr Kindly mark a copy of your communication to them to me also, if possible. Thanking you Babu Rao _______________________________________________________________________ C.BABU RAO Tel : (91)(4114) 40208 (office) DPEND- IGCAR 81547 (Home) KALPAKKAM 603 102 Fax : (91)(4114) 40356 Tamil Nadu, India 40360 E-mail : cbr@igcar.ernet.in _______________________________________________________________________ From maldagx@gel.ulaval.ca Mon Jan 15 16:52:27 2001 From: maldagx@gel.ulaval.ca (Xavier Maldague) Date: Mon, 15 Jan 2001 11:52:27 -0500 Subject: IV International Workshop [Quebec, Canada] Aug. 2001 Message-ID: <4.2.0.58.20010115115139.00de1af0@gel.ulaval.ca> The IVth Workshop in the series will be held in University Laval (Quebec city, Canada) August 7-10, 2001. Topics of interest for the Workshop are as follow Inverse Problems Modelling Information Extraction and Processing Neural Networks, Artificial Intelligence Processing, algorithm formulation Data standardization, fusion Reliability Hardware considerations Advances in NDE Techniques Applications A novel aspect of the Workshop will be tutorial sessions. Please visit the Workshop website http//www.gel.ulaval.ca/quebec/ for additional information. Deadline for abstract submission is approaching! (Jan. 31st, 2001) From i@on.ru Sun Jan 14 17:03:34 2001 From: i@on.ru (i@on.ru) Date: 14 Jan 2001 19:03:34 +0200 Subject: FREE http://4sansai.cjb.net 1393 Message-ID: <3a61dbe6@news.takas.lt> http://4sansai.cjb.net qsuxcpxqqtxetqekmmwquxrhdgxdddxlp From i@on.ru Sun Jan 14 18:23:15 2001 From: i@on.ru (i@on.ru) Date: 14 Jan 2001 20:23:15 +0200 Subject: FREE http://4sansai.cjb.net 1133 Message-ID: <3a61ee93$4@news.takas.lt> http://4sansai.cjb.net eokudbgscgydwhqsgxstmzdrqifstl From 320083890122-0001@t-online.de Tue Jan 16 09:17:36 2001 From: 320083890122-0001@t-online.de (Rolf Diederichs NDTnet) Date: Tue, 16 Jan 2001 10:17:36 +0100 Subject: NDTnet 01/2001: The e-Journal of Nondestructive Testing & Message-ID: <4.1.20010116101727.01f0c9f0@pop3.teuto.net> January 2001 Issue Vol.6 No.01; ISSN: 1435-4934, http://www.ndt.net This month's issue features a review of the MTQ 2000 exhibition as well as late incoming papers from the WCNDT 2000 and the EPRI conference. NDT.net will continue to offer the best service for the NDT community. One of our most important content elements are professional articles, therefore we invite you to submit your papers on all NDT topics for future issues. NDT conference hosts are welcome to publish their proceedings on CD-ROM and add them to the NDT.net Database as we recently did with the WCNDT 2000. For further information please contact Rolf Diederichs at rd@ndt.net. ------------------------------------------------------------ NDT.net - http://www.ndt.net The e-Journal of Nondestructive Testing & Ultrasonics Plus NDT online Exhibition From eginzel@mri.on.ca Thu Jan 18 11:32:09 2001 From: eginzel@mri.on.ca (Ed Ginzel) Date: Thu, 18 Jan 2001 06:32:09 -0500 Subject: NDTnet 01/2001: The e-Journal of Nondestructive Testing & Message-ID: <3.0.1.32.20010118063209.00ddb2a0@pop3.norton.antivirus> January 2001 Issue Vol.6 No.01; ISSN: 1435-4934, http://www.ndt.net This month's issue features a review of the MTQ 2000 exhibition as well as late incoming papers from the WCNDT 2000 and the EPRI conference. NDT.net will continue to offer the best service for the NDT community. One of our most important content elements are professional articles, therefore we invite you to submit your papers on all NDT topics for future issues. NDT conference hosts are welcome to publish their proceedings on CD-ROM and add them to the NDT.net Database as we recently did with the WCNDT 2000. For further information please contact Rolf Diederichs at rd@ndt.net. ---------------------------------------------------------------------------- NDT.net The e-Journal of Nondestructive Testing & Ultrasonics * NDTnet - http://www.ndt.net * ----------------------------------------------------------------------------- Ed Ginzel Materials Research Institute 368 Lexington Road Waterloo, Ontario Canada N2K 2K2 tel. (519)886-5071 fax. (519)886-8363 From jay@hal.nde.swri.edu Fri Jan 19 04:01:28 2001 From: jay@hal.nde.swri.edu (Jay Fisher) Date: Thu, 18 Jan 2001 22:01:28 -0600 Subject: [eginzel@mri.on.ca: Forwarded from NDT.net] Message-ID: <20010118220128.A9675@hal.nde.swri.edu> Forwarded to the group for Rolf: ******************** To: nde@coqui.ccf.swri.edu Subject: NDTnet 01/2001: The e-Journal of Nondestructive Testing & Ultrasonic Testing January 2001 Issue Vol.6 No.01; ISSN: 1435-4934, http://www.ndt.net This month's issue features a review of the MTQ 2000 exhibition as well as late incoming papers from the WCNDT 2000 and the EPRI conference. NDT.net will continue to offer the best service for the NDT community. One of our most important content elements are professional articles, therefore we invite you to submit your papers on all NDT topics for future issues. NDT conference hosts are welcome to publish their proceedings on CD-ROM and add them to the NDT.net Database as we recently did with the WCNDT 2000. For further information please contact Rolf Diederichs at rd@ndt.net. ---------------------------------------------------------------------------- NDT.net The e-Journal of Nondestructive Testing & Ultrasonics * NDTnet - http://www.ndt.net * ----------------------------------------------------------------------------- ---------------------------------------------------------------------------- NDT.net The e-Journal of Nondestructive Testing & Ultrasonics * NDTnet - http://www.ndt.net * ----------------------------------------------------------------------------- Rolf Diederichs Auf dem Berg 1b 56729 Kirchwald - Germany Phone: + 49/(0)2651/904905 Fax: + 49/(0)2651/904906 Email: rd@ndt.net Ed Ginzel Materials Research Institute 368 Lexington Road Waterloo, Ontario Canada N2K 2K2 tel. (519)886-5071 fax. (519)886-8363 ----- End forwarded message ----- From chris_gabriel@my-deja.com Fri Jan 19 07:57:52 2001 From: chris_gabriel@my-deja.com (chris_gabriel@my-deja.com) Date: Fri, 19 Jan 2001 07:57:52 GMT Subject: Could this be a record Message-ID: <948s1v$rtt$1@nnrp1.deja.com> Congratulations on managing to post news of the NDT.net 01/2001 The e-Journal of Non Destructive Testing for a record 4 times this month. Normally you people only manage to post it 2 or 3 times each month. Sent via Deja.com http://www.deja.com/ From hpenbz@email.com Fri Jan 19 18:57:56 2001 From: hpenbz@email.com (hpenbz@email.com) Date: 20 Jan 2001 02:57:56 +0800 Subject: Powerful Technique 1402 Message-ID: <3a688e34.1@news2.tm.net.my> Learn all the secret of HOW TO MAKE OTHER PEOPLE TO WORK FOR YOU for free, get hundred or thousand of people reach you without you even contacting them. Visit us today at : www.sixfigureincome.com/affiliate/register.html?871371 now. Here you will learn 12 reason why you should do it. vqeqzkgkyfgq From jay@hal.nde.swri.edu Sat Jan 20 15:53:48 2001 From: jay@hal.nde.swri.edu (Jay Fisher) Date: Sat, 20 Jan 2001 09:53:48 -0600 Subject: [chris_gabriel@my-deja.com: Could this be a record] Message-ID: <20010120095348.B10952@hal.nde.swri.edu> This was my fault, not Rolf's. I was trying to deal with a problem we are having gatewaying his postings to the nde mail list. Jay Fisher ----- Forwarded message from chris_gabriel@my-deja.com ----- Received: from swrinde.nde.swri.edu (swrinde.nde.swri.edu [129.162.172.2]) by hal.nde.swri.edu (8.9.3/8.9.3) with ESMTP id CAA09911 for ; Fri, 19 Jan 2001 02:20:42 -0600 (CST) Received: from jerryg.ccf.swri.edu (jerryg.ccf.swri.edu [129.162.252.30]) by swrinde.nde.swri.edu (8.9.3/8.9.3) with ESMTP id CAA06479 for ; Fri, 19 Jan 2001 02:20:42 -0600 (CST) Received: (from uucp@localhost) by jerryg.ccf.swri.edu (8.9.3/8.9.3) id CAA16896 for ; Fri, 19 Jan 2001 02:20:25 -0600 (CST) Received: from nodnsquery(129.162.75.2) by jerryg.ccf.swri.edu via smap (V4.0) id xma016359; Fri, 19 Jan 01 02:19:25 -0600 Received: (from majordomo@localhost) by coqui.ccf.swri.edu (8.9.3/8.9.3) id CAA24985 for nde-news-outgoing; Fri, 19 Jan 2001 02:16:25 -0600 (CST) 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, 19 Jan 2001 07:57:52 GMT From: chris_gabriel@my-deja.com Message-ID: <948s1v$rtt$1@nnrp1.deja.com> Organization: Deja.com Subject: Could this be a record Sender: owner-nde@coqui.ccf.swri.edu Precedence: bulk Status: RO Content-Length: 249 Lines: 8 Congratulations on managing to post news of the NDT.net 01/2001 The e-Journal of Non Destructive Testing for a record 4 times this month. Normally you people only manage to post it 2 or 3 times each month. Sent via Deja.com http://www.deja.com/ ----- End forwarded message ----- -- Jay L. Fisher, Sc.D. Nondestructive Evaluation jfisher@swri.edu Science & Technology Department 210-522-2028 (voice) 210-522-6617 (fax) Southwest Research Institute From chris_gabriel@my-deja.com Sun Jan 21 08:09:23 2001 From: chris_gabriel@my-deja.com (chris_gabriel@my-deja.com) Date: Sun, 21 Jan 2001 08:09:23 GMT Subject: [chris_gabriel@my-deja.com: Could this be a record] References: <20010120095348.B10952@hal.nde.swri.edu> Message-ID: <94e5fi$rc$1@nnrp1.deja.com> The Deja system is outdated, slow, difficult to use and simply does not work. Why not move this forum to another host ? There are plenty more, still free to use and far more efficient. Sent via Deja.com http://www.deja.com/ From crown@mail.spbnit.ru Wed Jan 24 01:28:37 2001 From: crown@mail.spbnit.ru (crown@mail.spbnit.ru) Date: Wed, 24 Jan 2001 04:28:37 +0300 Subject: SCIENSORIA signs agreement with KORINS Message-ID: <94lb2c$2aao$1@josh.sovintel.ru> This is a multi-part message in MIME format. ------=_NextPart_000_0009_01C085BE.1EB2F920 Content-Type: text/plain; charset="koi8-r" Content-Transfer-Encoding: quoted-printable SCIENSORIA, Bruz, France (www.sensorsbank.com) has signed an one-year = agreement with KORINS (www.korins.com) to provide eddy current testing = services and to distribute equipment to Korean customers. For more = detailed information on our products and services please visit our web = sites or contact us at sales@innovations.net or jsjoe@korins.com=20 ------=_NextPart_000_0009_01C085BE.1EB2F920 Content-Type: text/html; charset="koi8-r" Content-Transfer-Encoding: quoted-printable
SCIENSORIA, Bruz, France (www.sensorsbank.com) has signed = an=20 one-year agreement with KORINS (www.korins.com) to provide eddy = current testing=20 services and to distribute equipment to Korean customers. For more = detailed=20 information on our products and services please visit our web sites or = contact=20 us at sales@innovations.net or=20 jsjoe@korins.com =
------=_NextPart_000_0009_01C085BE.1EB2F920-- From crown@mail.spbnit.ru Wed Jan 24 19:06:51 2001 From: crown@mail.spbnit.ru (crown@mail.spbnit.ru) Date: Wed, 24 Jan 2001 22:06:51 +0300 Subject: New PC-based eddy current instrument Message-ID: <94n90b$16j0$1@josh.sovintel.ru> This is a multi-part message in MIME format. ------=_NextPart_000_0102_01C08651.F46B0060 Content-Type: text/plain; charset="koi8-r" Content-Transfer-Encoding: quoted-printable Forwarded to the group for Patrick Lafont (sales@inovations.net , = patricklafont@email.com) *************************************************************************= ******************************** =DEDS-03 is a PC-based eddy current instrument. It can perform almost = all the applications in eddy currents NDT (flaw detection, thickness = measurement, conductivity measurement,...). With =DEDS-03 you can make = software for data processing and calibration applications in Delphi, = Turbo Pascal, Matlab,... Instruments from our competitors are often = intended to be used with one application only, you would not be able = reprogram them for other applications. For more detailed information = please visit our web site (www.sensorsbank.com) or contact us at = sales@innovations.net=20 ------=_NextPart_000_0102_01C08651.F46B0060 Content-Type: text/html; charset="koi8-r" Content-Transfer-Encoding: quoted-printable
Forwarded to the group for Patrick Lafont (sales@inovations.net , patricklafont@email.com) *********************************************************= ************************************************
 
µDS-03  is a PC-based eddy current = instrument. It=20 can perform almost all the applications in eddy currents NDT (flaw = detection,=20 thickness measurement, conductivity measurement,...). With = µDS-03 you can=20 make software for data processing and calibration applications in = Delphi, Turbo=20 Pascal, Matlab,... Instruments from our competitors are = often intended=20 to be used with one application only, you would not be able reprogram = them=20 for  other applications. For more detailed information please = visit=20 our web site (www.sensorsbank.com) or=20 contact us at sales@innovations.net=20
------=_NextPart_000_0102_01C08651.F46B0060-- From thammond@wi-investcast.com Thu Jan 25 16:35:46 2001 From: thammond@wi-investcast.com (Tim Hammond) Date: Thu, 25 Jan 2001 10:35:46 -0600 Subject: MPI indications Message-ID: <3a7055ad$0$45999$272ea4a1@news.execpc.com> I'm new to this newsgroup, and not sure if this is the type of question that can be answered here. The question is regarding MPI indications. The indication is linear and about .5"-1" long. The indication does not show up at FPI, or at X-Ray. The part is a casting (investment casting), and the alloy is 17-4PH. The indications are on a machined surface, directly below the gates for the part. I am looking for any help on diagnosing what these indications are. Tim From Alfred.L.Broz@faa.gov Thu Jan 25 17:51:33 2001 From: Alfred.L.Broz@faa.gov (Alfred L Broz) Date: Thu, 25 Jan 2001 12:51:33 -0500 Subject: MPI indications Message-ID: <0101259804.AA980445058@faa.gov> For my benefit and that of the group, can you please describe how sharp the indication is? The fact that x-ray and FPI show no indications does not mean that there are no anomalies present. al broz ______________________________ Reply Separator _________________________________ Subject: MPI indications Author: thammond@wi-investcast.com at Internet Date: 1/25/01 11:48 AM I'm new to this newsgroup, and not sure if this is the type of question that can be answered here. The question is regarding MPI indications. The indication is linear and about .5"-1" long. The indication does not show up at FPI, or at X-Ray. The part is a casting (investment casting), and the alloy is 17-4PH. The indications are on a machined surface, directly below the gates for the part. I am looking for any help on diagnosing what these indications are. Tim From jtskipilot@aol.comzerospam Thu Jan 25 21:39:40 2001 From: jtskipilot@aol.comzerospam (JtskiPilot) Date: 25 Jan 2001 21:39:40 GMT Subject: MPI indications References: <3a7055ad$0$45999$272ea4a1@news.execpc.com> Message-ID: <20010125163940.11150.00001334@ng-me1.aol.com> Tim... How bout part geometry?? and change of thicknesses present??? Material change?? Off hand... i wouldn't think it to be a relevant indication Mike R RT II, PT II , MT II , VT II >The question is regarding MPI indications. The indication is linear and >about .5"-1" long. The indication does not show up at FPI, or at X-Ray. >The part is a casting (investment casting), and the alloy is 17-4PH. The >indications are on a machined surface, directly below the gates for the >part. > >I am looking for any help on diagnosing what these indications are. > >Tim > > > > From crown@mail.spbnit.ru Fri Jan 26 00:52:05 2001 From: crown@mail.spbnit.ru (crown@mail.spbnit.ru) Date: Fri, 26 Jan 2001 03:52:05 +0300 Subject: SCIENSORIA signs agreement with KORINS Message-ID: <006601c08732$726f8680$2730ddd5@wplus.net> This is a multi-part message in MIME format. ------=_NextPart_000_0057_01C0874B.590B8CC0 Content-Type: text/plain; charset="windows-1251" Content-Transfer-Encoding: quoted-printable SCIENSORIA, Bruz, France (www.sensorsbank.com) has signed an one-year = agreement with KORINS (www.korins.com) to provide eddy current testing = services and to distribute equipment to Korean customers. For more = detailed information on our products and services please visit our web = sites or contact us at sales@innovations.net or jsjoe@korins.com=20 ------=_NextPart_000_0057_01C0874B.590B8CC0 Content-Type: text/html; charset="windows-1251" Content-Transfer-Encoding: quoted-printable
SCIENSORIA, Bruz, France (www.sensorsbank.com) has signed = an=20 one-year agreement with KORINS (www.korins.com) to provide eddy = current testing=20 services and to distribute equipment to Korean customers. For more = detailed=20 information on our products and services please visit our web sites or = contact=20 us at sales@innovations.net or=20 jsjoe@korins.com=20
------=_NextPart_000_0057_01C0874B.590B8CC0-- From crown@mail.spbnit.ru Fri Jan 26 00:53:09 2001 From: crown@mail.spbnit.ru (crown@mail.spbnit.ru) Date: Fri, 26 Jan 2001 03:53:09 +0300 Subject: New PC-based portable eddy current instrument Message-ID: <006701c08732$7338f100$2730ddd5@wplus.net> This is a multi-part message in MIME format. ------=_NextPart_000_0063_01C0874B.7F267E60 Content-Type: text/plain; charset="windows-1251" Content-Transfer-Encoding: quoted-printable Forwarded to the group for Patrick Lafont (sales@inovations.net , = patricklafont@email.com) *************************************************************************= ******************************** =B5DS-03 is a PC-based eddy current instrument. It can perform almost = all the applications in eddy currents NDT (flaw detection, thickness = measurement, conductivity measurement,...). With =B5DS-03 you can make = software for data processing and calibration applications in Delphi, = Turbo Pascal, Matlab,... Instruments from our competitors are often = intended to be used with one application only, you would not be able = reprogram them for other applications. For more detailed information = please visit our web site (www.sensorsbank.com) or contact us at = sales@innovations.net=20 ------=_NextPart_000_0063_01C0874B.7F267E60 Content-Type: text/html; charset="windows-1251" Content-Transfer-Encoding: quoted-printable
Forwarded to the group for Patrick Lafont (sales@inovations.net , patricklafont@email.com) *********************************************************= ************************************************
 
=B5DS-03  is a PC-based eddy current = instrument. It=20 can perform almost all the applications in eddy currents NDT (flaw = detection,=20 thickness measurement, conductivity measurement,...). With = =B5DS-03 you can=20 make software for data processing and calibration applications in = Delphi, Turbo=20 Pascal, Matlab,... Instruments from our competitors are = often intended=20 to be used with one application only, you would not be able reprogram = them=20 for  other applications. For more detailed information please = visit=20 our web site (www.sensorsbank.com) or=20 contact us at sales@innovations.net=20
------=_NextPart_000_0063_01C0874B.7F267E60-- From emery1@qwest.net Fri Jan 26 07:34:03 2001 From: emery1@qwest.net (Emery) Date: Thu, 25 Jan 2001 23:34:03 -0800 Subject: MPI indications References: <3a7055ad$0$45999$272ea4a1@news.execpc.com> Message-ID: <3A712869.C6D98CE9@qwest.net> This is a multi-part message in MIME format. --------------A2DBB84F0EAF93E7496BA609 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit I would look into a hardness difference or grain flow boundaries. A hardness difference would not show up with penetrant or x-ray. You don't say how distinct the indication is (sharp or fuzzy) or whether it is arc shaped or straight. There might be a difference in arrangement of the grains from columnar to elongated at the indication. Tim Hammond wrote: > I'm new to this newsgroup, and not sure if this is the type of question that > can be answered here. > > The question is regarding MPI indications. The indication is linear and > about .5"-1" long. The indication does not show up at FPI, or at X-Ray. > The part is a casting (investment casting), and the alloy is 17-4PH. The > indications are on a machined surface, directly below the gates for the > part. > > I am looking for any help on diagnosing what these indications are. > > Tim --------------A2DBB84F0EAF93E7496BA609 Content-Type: text/x-vcard; charset=us-ascii; name="emery1.vcf" Content-Transfer-Encoding: 7bit Content-Description: Card for Emery Content-Disposition: attachment; filename="emery1.vcf" begin:vcard n:Roberts;Emery tel;pager:206-608-1066 tel;fax:206-282-0710 tel;home:206-242-6543 tel;work:206-282-0666 x-mozilla-html:FALSE org:Professional Service Industries, Inc.;NDE Department version:2.1 email;internet:emery1@qwest.net or see Complete Card for additional email addresses. title:ASNT Level III adr;quoted-printable:;;3257 16th Ave. West=0D=0A;Seattle;WA;98119;USA note;quoted-printable:Additional email addresses:=0D=0Aemery.roberts@psiusa.com
=0D=0Aor =0D=0Aemery@asntpnws.org fn:Emery E. Roberts end:vcard --------------A2DBB84F0EAF93E7496BA609-- From davewilkes@my-deja.com Fri Jan 26 09:28:05 2001 From: davewilkes@my-deja.com (davewilkes@my-deja.com) Date: Fri, 26 Jan 2001 09:28:05 GMT Subject: MPI indications References: <3a7055ad$0$45999$272ea4a1@news.execpc.com> Message-ID: <94rfv0$9ms$1@nnrp1.deja.com> Tim, Can I make a suggestion that might help you, but would make an interesting experiment all the same. If you have access to a digital camera, take a couple of pictures of the defect. Then email them to me, and I will create a webpage showing the pictures. We will then put the url of the page on this discussion board so that users can take a look and maybe give a valid judgement. However, before you email the images, would you take a look at this article on NDTCabin that describes the problems in placing images in reports and then sending them by email http://www.ndtcabin.com/usingimages/images1.asp Regards Dave Wilkes dave@ndtcabin.com Sent via Deja.com http://www.deja.com/ From rd@ndt.net Fri Jan 26 10:47:14 2001 From: rd@ndt.net (Rolf Diederichs (NDTnet)) Date: Fri, 26 Jan 2001 11:47:14 +0100 Subject: MPI indications Message-ID: <4.1.20010126114102.0211a590@pop3.teuto.net> Tim, Your question could get a broad audience if you would post it to the NDT.net forum at http://www.ndt.net/wshop/forum/forum.htm. Also you can attach an image of the indication. Best regards Rolf ------------------------------------------------------------ NDT.net - http://www.ndt.net The e-Journal of Nondestructive Testing Plus NDT online Exhibition From thomas.r.oconnor@lmco.com Fri Jan 26 12:24:31 2001 From: thomas.r.oconnor@lmco.com (Thomas R. O'Connor) Date: Fri, 26 Jan 2001 07:24:31 -0500 Subject: MPI indications References: <3a7055ad$0$45999$272ea4a1@news.execpc.com> Message-ID: <3A716C7E.F3A76255@lmco.com> The 17-4 PH steel alloy has inherent stringers that will show linear indications when performing magnetic particle inspection. My company performs fluorescent penetrant on 17-4 and 17-7 alloys due to the presence of these stringers. They are not detrimental to the part per our engineering group. Ray O'Connor Magnetic Particle Level III Lockheed-Martin Tim Hammond wrote: > I'm new to this newsgroup, and not sure if this is the type of question that > can be answered here. > > The question is regarding MPI indications. The indication is linear and > about .5"-1" long. The indication does not show up at FPI, or at X-Ray. > The part is a casting (investment casting), and the alloy is 17-4PH. The > indications are on a machined surface, directly below the gates for the > part. > > I am looking for any help on diagnosing what these indications are. > > Tim From thomas.r.oconnor@lmco.com Fri Jan 26 12:52:48 2001 From: thomas.r.oconnor@lmco.com (Thomas R. O'Connor) Date: Fri, 26 Jan 2001 07:52:48 -0500 Subject: MPI indications References: <3a7055ad$0$45999$272ea4a1@news.execpc.com> Message-ID: <3A717320.A1E8B7BC@lmco.com> I missed the fact that this part is a casting when I first read your post. If the indication is the delta ferrite stringer that I mentioned in my first post, the indication will be more rounded at the edges than it would be if it were a wrought product. Indications on an as-cast surface would be globular in nature and not well defined but would be sharper on the machined surface. The only way I know of to determine if it is truly a stringer is to section the part and do a metallograhpic examination. This may not be an option. I hope this helps. Ray O'Connor Tim Hammond wrote: > I'm new to this newsgroup, and not sure if this is the type of question that > can be answered here. > > The question is regarding MPI indications. The indication is linear and > about .5"-1" long. The indication does not show up at FPI, or at X-Ray. > The part is a casting (investment casting), and the alloy is 17-4PH. The > indications are on a machined surface, directly below the gates for the > part. > > I am looking for any help on diagnosing what these indications are. > > Tim From Gary.Georgeson@PSS.Boeing.com Fri Jan 26 16:28:22 2001 From: Gary.Georgeson@PSS.Boeing.com (Georgeson, Gary E) Date: Fri, 26 Jan 2001 08:28:22 -0800 Subject: NDI applications for high flux neutron radiography Message-ID: <5FF7AEA1EDADDD499643A614218384960283D5EE@xch-nw-05.ca.boeing.com> I would like to talk with anyone working in NDI in aerospace, : transportation, or civil engineering who has come across an : important application/problem that is not being solved by current : NDI approaches. Specifically, I am looking for a strong business : case for developing high flux, high speed neutron radiography. : I would expect neutron radiography to be an advantage in inspecting: : thick metallic structure (bridges, submarines, and buildings, etc.) : structures with water ingress problems : degraded wiring insulation : thick composite w/ adhesive or paste bonds : solid rocket motors : hazardous waste canisters : etc. : I'm sure there are many other potential applications. : Basically, I have a potential solution looking for the right problem! : If : : (1)current NDI techniques don't work for your application, : and : (2)high flux neutron radiography has potential to solve it, : and : (3)the application scale is large enough to justify development : money : then...I'd like to hear from you! : thankyou. Gary Georgeson NDE Scientist Boeing Defense & Space Group (206) 662-2161 From nardoni@numerica.it Fri Jan 26 20:12:29 2001 From: nardoni@numerica.it (I & T di Nardoni) Date: Fri, 26 Jan 2001 21:12:29 +0100 Subject: R: MPI indications References: <0101259804.AA980445058@faa.gov> Message-ID: <006801c087d4$62dde660$4c2a26d4@nardoni> Dear Tim I have long experience with this type of steel ; the indications that appears aredue to the permeability change of ferrite fragment and the matrix of the metal . In general the indications are 0.5 mm - 2mm long, segmented shaped and casually scattered in all the matrix . The intensity increase as you increase the magnetic field . We have studied very highly this phenomena in cooperation with Alenia Aerospace : The particulars on which we met these indications were the supports of missiles at the aicraft . Best regards G. NARDONI I&T NARDONI INSTITUTE ----- Original Message ----- From: Alfred L Broz To: Sent: Thursday, January 25, 2001 6:51 PM Subject: Re: MPI indications > For my benefit and that of the group, can you please describe how > sharp the indication is? > > The fact that x-ray and FPI show no indications does not mean that > there are no anomalies present. > > al broz > > > ______________________________ Reply Separator _________________________________ > Subject: MPI indications > Author: thammond@wi-investcast.com at Internet > Date: 1/25/01 11:48 AM > > > I'm new to this newsgroup, and not sure if this is the type of question that > can be answered here. > > The question is regarding MPI indications. The indication is linear and > about .5"-1" long. The indication does not show up at FPI, or at X-Ray. > The part is a casting (investment casting), and the alloy is 17-4PH. The > indications are on a machined surface, directly below the gates for the > part. > > I am looking for any help on diagnosing what these indications are. > > Tim > > From gataibo@webtv.net Wed Jan 24 19:12:10 2001 From: gataibo@webtv.net (Randy Nachtrieb) Date: Wed, 24 Jan 2001 11:12:10 -0800 (PST) Subject: FS: ANALOGIC Video Image Processor Message-ID: <4850-3A6F290A-3@storefull-122.iap.bryant.webtv.net> ANALOGIC DASM-CFGM/4MB/BP Video Image Processor Good Condition Requires 12VDC PRICE: $850 E-mail or call (323)851-8844 From Bee@nowhere.fr Wed Jan 31 21:58:22 2001 From: Bee@nowhere.fr (Bee) Date: Wed, 31 Jan 2001 21:58:22 GMT Subject: MPI indications References: <3a7055ad$0$45999$272ea4a1@news.execpc.com> Message-ID: <2U%d6.21694$Pm2.434887@news20.bellglobal.com> Did you ever grind down the surface and continue checking for these indications using MPI Brian "Tim Hammond" wrote in message news:3a7055ad$0$45999$272ea4a1@news.execpc.com... > I'm new to this newsgroup, and not sure if this is the type of question that > can be answered here. > > The question is regarding MPI indications. The indication is linear and > about .5"-1" long. The indication does not show up at FPI, or at X-Ray. > The part is a casting (investment casting), and the alloy is 17-4PH. The > indications are on a machined surface, directly below the gates for the > part. > > I am looking for any help on diagnosing what these indications are. > > Tim > >