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 R&D 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 Heald davehe...@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 Heald davehe...@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,"
