board scanning on the cheap (sort of)
Well, this discussion has reached the point where I must add something I read about some years ago. It goes something like this: For many years, Russia was known to conduct many experiments involving paranormal activity, probably to determine if there were any military value in such phenomena as psychic communications etc., if in fact they existed. I was surprised to see an article in a National Geographic years ago that told of one such experiment. It involved photography of the aura (presumably electromagnetic fields) that surround the human body. The peaks in this aura, or field were found to be consistent with the primary acupuncture points long before identified by the Chinese. A faith (hand-on) healing was photographed, revealing that the aura of the healer diminished during the process while the aura of the person being healed increased, i.e. a possible transfer of energy. The point of all this is if the Russians truly developed a means to photograph the low power EMF surrounding humans, it would seem that the same technique would also photograph the EMF surrounding PCBs etc. I have no comment on whether any of the above is true science, but I DID read it in the generally respected National Geographic, albeit not a scientific journal. George Alspaugh --- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Michael Garretson:pstc_ad...@garretson.org Dave Healddavehe...@mediaone.net For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org All emc-pstc postings are archived and searchable on the web at: http://www.rcic.com/ click on Virtual Conference Hall,
Re: EMSCAN (was TV nostalgia/EMI sniffer goggle)
Alas, you forget that there is a world outside of PC's and Coms;- Derek. --- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Michael Garretson:pstc_ad...@garretson.org Dave Healddavehe...@mediaone.net For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org All emc-pstc postings are archived and searchable on the web at: http://www.rcic.com/ click on Virtual Conference Hall,
Re: EMSCAN (was TV nostalgia/EMI sniffer goggle)
14.184d3188.28a40...@aol.com, lfresea...@aol.com inimitably wrote: the component side has too great a skyline to give good results. Not these days! Anything more than 5 mm tall and the product won't fit in your pocket. *Everything* has to fit in your pocket(;-) -- Regards, John Woodgate, OOO - Own Opinions Only. http://www.jmwa.demon.co.uk This message and its contents are not confidential, privileged or protected by law. Access is only authorised by the intended recipient - this means YOU! The contents may be disclosed to, or used by, anyone and stored or copied in any medium. If you are not the intended recipient, please advise the sender yesterday at the latest. --- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Michael Garretson:pstc_ad...@garretson.org Dave Healddavehe...@mediaone.net For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org All emc-pstc postings are archived and searchable on the web at: http://www.rcic.com/ click on Virtual Conference Hall,
Re: board scanning on the cheap (sort of)
Can I point you to a commercial version already available. A company called 'Detectus AB' have a system like this - more details can be found at http://www.detectus.se/ I've used this system on several projects and it is very useful for visualising the emissions plot of a PCB / Chassis. Using this system we can view what happens on the top side of a PCB or around a chassis which was the limitation of the EMScan system. You can also use any type of probe for the measurements. The only downside to this system is that it can take a couple of hours for a scan of a pcb if using a small probe and cell size. EMScan has speed as it's main feature. Usual disclaimer - I have no links to either company and all views expressed are personal etc. etc. etc Ivor Eathorne 3Com Europe Ltd. UK. brent.dew...@us.datex-ohmeda.com on 08/08/2001 21:02:46 Please respond to brent.dew...@us.datex-ohmeda.com Sent by: brent.dew...@us.datex-ohmeda.com To: emc-p...@majordomo.ieee.org cc:(Ivor Eathorne/GB/3Com) Subject: board scanning on the cheap (sort of) With all this talk about visualization, I thought I'd toss in my bit. Here at Datex-Ohmeda we have a small NC mill sometimes used by the RD group to make small prototype parts, but it often sits idle. Since I have a spectrum analyzer and a variety of small dimension H and E field probes I've built, I thought it would be interesting to build the equivalent of an EMScan. The control program is being written in LabVIEW and is coming along pretty well. One nice thing about the mill is that I can program the scan height for any rectangle I define, so tall components can be hopped over. When it's all done, I should be able to play a frequency swept movie of the board on an intensity graph. The cheaper way to do this would be to find an older X-Y plotter and skip the height variation. If I ever get the beast done, it will be open source to LabVIEW users. Best regards, Brent DeWitt Datex-Ohmeda Louisville, CO --- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Michael Garretson:pstc_ad...@garretson.org Dave Healddavehe...@mediaone.net For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org All emc-pstc postings are archived and searchable on the web at: http://www.rcic.com/ click on Virtual Conference Hall, --- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Michael Garretson:pstc_ad...@garretson.org Dave Healddavehe...@mediaone.net For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org All emc-pstc postings are archived and searchable on the web at: http://www.rcic.com/ click on Virtual Conference Hall,
Re: EMSCAN (was TV nostalgia/EMI sniffer goggle)
Hi all, I have an EMScan system that I used for debugging boards. I have mixed feelings, but for somethings it really helps. If anyone would like their board scanned to see if it would help them, let me know off line: I'm really cheap;- As for high frequency, the resolution of the grid is one limitation, but remember you only scan, reliably, the back side of the board the component side has too great a skyline to give good results. Dos show the hot chips though;- Derek Walton --- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Michael Garretson:pstc_ad...@garretson.org Dave Healddavehe...@mediaone.net For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org All emc-pstc postings are archived and searchable on the web at: http://www.rcic.com/ click on Virtual Conference Hall,
RE: board scanning on the cheap (sort of)
Brent, You'd find a paper titled Constructing the Lagrangian of VLSI Devices from Near Field Measurements of the Electric and Magnetic Fields on page 129 of the IEEE 2000 Symposium record volume one very interesting. It lists some results using just such a measuring device. A description I believe of the contraption itself can be found in the IEEE 1999 EMC Symposium record titled Measuring the Electric and Magnetic Near fields in VLSI Devices. Dan -Original Message- From: brent.dew...@us.datex-ohmeda.com [mailto:brent.dew...@us.datex-ohmeda.com] Sent: Wednesday, August 08, 2001 4:03 PM To: emc-p...@majordomo.ieee.org Subject: board scanning on the cheap (sort of) With all this talk about visualization, I thought I'd toss in my bit. Here at Datex-Ohmeda we have a small NC mill sometimes used by the RD group to make small prototype parts, but it often sits idle. Since I have a spectrum analyzer and a variety of small dimension H and E field probes I've built, I thought it would be interesting to build the equivalent of an EMScan. The control program is being written in LabVIEW and is coming along pretty well. One nice thing about the mill is that I can program the scan height for any rectangle I define, so tall components can be hopped over. When it's all done, I should be able to play a frequency swept movie of the board on an intensity graph. The cheaper way to do this would be to find an older X-Y plotter and skip the height variation. If I ever get the beast done, it will be open source to LabVIEW users. Best regards, Brent DeWitt Datex-Ohmeda Louisville, CO --- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Michael Garretson:pstc_ad...@garretson.org Dave Healddavehe...@mediaone.net For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org All emc-pstc postings are archived and searchable on the web at: http://www.rcic.com/ click on Virtual Conference Hall, --- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Michael Garretson:pstc_ad...@garretson.org Dave Healddavehe...@mediaone.net For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org All emc-pstc postings are archived and searchable on the web at: http://www.rcic.com/ click on Virtual Conference Hall,
Reminder of TC8 / PSTC activities at the IEEE EMC Symposium Next Week
Attached is the PSTC/TC-8 agenda for the Montreal IEEE EMC Symposium. For emc-pstc subscribers, at each of these meetings I'll discuss our plans for a new web-based e-community that not only include all of the current listserver functions, but a number of new web-based features. We'll have hands-on demos at the Internet Cafe. Please attend the meetings and stop by the Internet Cafe for your personal hands-on access to our new e-community. Andre Abramenko of Mindcruiser, provider of the software, will be there, too, to get your feedback. I look forward to meeting you in Montreal. Jim Paxar Corp. FYI... Reply Separator Subject:TC-8 activities at 2001 IEEE EMC Symposium Author: murlin.e.ma...@us.ul.com List-Post: emc-pstc@listserv.ieee.org Date: 7/11/01 9:48 AM Announcement/Reminder The Product Safety Technical Committee (TC-8) of the IEEE EMC Society will have the following activities at the EMC Symposium in Montreal ( http://www.2001emcmtl.org/home.html ) over the week of August 13-17. Wednesday, August 15 7-8:30am - TC-8 Annual Meeting - Check Program for location Thursday, August 16 6pm, Speakers' Dinner (self-hosted) - Location to be determined Friday, August 17 8:30am-12:30pm, Product Safety Workshop - Check Program for location We hope you all can attend these activities. As you may know, we are in the process of trying to become an IEEE Product Safety Society. You are all invited to become a part of this ground-breaking development for product safety professionals. We need your leadership and support! In addition to the opportunity to meet the Product Safety Workshop speakers, the Speakers' Dinner is intended to be an open discussion forum for our evolution into a full fledged, IEEE Society. This presents limitless opportunities for professional development of those involved full time or part time with product safety. Your ideas and enthusiastic support are essential to this coming to fruition. For more information, check our website: http://www.ewh.ieee.org/soc/emcs/pstc/ In order to assure a large-enough room, please let me know (murl...@ix.netcom.com) if you can make it to the Speakers' Dinner. We will put announcements out about the dinner at the conference. Murlin Marks Past TC-8 Chairman Product Safety Workshop Co-Chair Disclaimer: The above is my personal opinion, and not necessarily that of my employer. - Greetings, Here's some activities that the Product Safety group is doing at the IEEE EMC Symposium in Montreal. 1. Product Safety technical presentation by Ron Duffy and Richard Georgerian - Wednesday, August 15, 2001 at 2:50pm. Title of presentation: Product Safety and the use of EMC techniques to evaluate the 30 Amp Ground Continuity Test 2. Product Safety demonstration on the 30 Amp Ground Continuity Test by Ron Duffy and Richard Georgerian - Thursday, August 16, 2001, morning session. 3. For the Product Safety Workshop on Friday, August 17, 2001, 9am-12pm., Ron Duffy and Richard Georgerian will present the 30 Amp Continuity Test as a workshop for more in-depth discussions. Richard --- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Michael Garretson:pstc_ad...@garretson.org Dave Healddavehe...@mediaone.net For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org All emc-pstc postings are archived and searchable on the web at: http://www.rcic.com/ click on Virtual Conference Hall,
RE: board scanning on the cheap (sort of)
-Original Message- From: brent.dew...@us.datex-ohmeda.com [mailto:brent.dew...@us.datex-ohmeda.com] Sent: Wednesday, August 08, 2001 1:03 PM To: emc-p...@majordomo.ieee.org Subject: board scanning on the cheap (sort of) With all this talk about visualization, I thought I'd toss in my bit. Here at Datex-Ohmeda we have a small NC mill sometimes used by the RD group to make small prototype parts, but it often sits idle. Since I have a spectrum analyzer and a variety of small dimension H and E field probes I've built, I thought it would be interesting to build the equivalent of an EMScan. The control program is being written in LabVIEW and is coming along pretty well. One nice thing about the mill is that I can program the scan height for any rectangle I define, so tall components can be hopped over. When it's all done, I should be able to play a frequency swept movie of the board on an intensity graph. The cheaper way to do this would be to find an older X-Y plotter and skip the height variation. If I ever get the beast done, it will be open source to LabVIEW users. Best regards, Brent DeWitt Datex-Ohmeda Louisville, CO Brent: That sounds like a good project. But what about the conductive / reflective effect of that big spindle? Maybe you should mount any probe on the end of a long, stiff non-conductive rod. Assuming that you can crank the table down pretty far, you might be able to chuck an 18 rod in the spindle. Regards, Ed Ed Price ed.pr...@cubic.com Electromagnetic Compatibility Lab Cubic Defense Systems San Diego, CA USA 858-505-2780 (Voice) 858-505-1583 (Fax) Military Avionics EMC Services Is Our Specialty Shake-Bake-Shock - Metrology - Reliability Analysis --- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Michael Garretson:pstc_ad...@garretson.org Dave Healddavehe...@mediaone.net For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org All emc-pstc postings are archived and searchable on the web at: http://www.rcic.com/ click on Virtual Conference Hall,
EMC, Safety and Telecom Approval for a Modem
Hi, I need some help. I have a medical device that has a modem. The medical device I can handle. What I need some help in is establishing the requirements (testing and certification for EMC, Safety and Telecom) for the modem. The target countries are: Australia, Austria, Belgium, Brazil, Canada, China, Denmark, France, Germany, Greece, Hong Kong, Hungary, India, Ireland, Israel, Italy, Japan, Malaysia, Mexico, The Netherlands, New Zealand, Philippines, Poland, Singapore, South Africa, Spain, Switzerland, United Kingdom, United States, Finland, Norway and Sweden. (don't you just love the marketing guys :-) I know this is a lot of information, so I am expecting to pay for it. If you can help, please contact me. Thanks Ned Ned Devine Program Manager III Entela, Inc. 3033 Madison Ave. SE Grand Rapids, MI 49548 616 248 9671 Phone 616 574 9752 Fax ndev...@entela.com e-mail --- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Michael Garretson:pstc_ad...@garretson.org Dave Healddavehe...@mediaone.net For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org All emc-pstc postings are archived and searchable on the web at: http://www.rcic.com/ click on Virtual Conference Hall,
