The sheet material you linked is for DC magnetic fields and it is made by Magne-Rite® ( http://www.magnerite.com/ <http://www.magnerite.com/> ). Since it uses Ni particle movement I doubt it will even get close to 30Mhz. One other question, how does one sniff with their eyes? -doug ================================= Douglas E. Powell Regulatory Compliance Engineer Advanced Energy Industries, Inc. 1625 Sharp Point Dr. Ft. Collins, Co 80525
mailto:[email protected] <mailto:[email protected]> www.advanced-energy.com <http://www.advanced-energy.com/> ================================= -----Original Message----- From: Ehler, Kyle [mailto:[email protected]] Sent: Wednesday, August 08, 2001 9:19 AM To: 'Wan Juang Foo'; EMC-PSTC Discussion Group Subject: RE: EMI sniffer goggles Hi Tim, Welcome to the fray.. There is in existence a sheet material that exhibits these properties however, the flux sensitivity may not be sufficient for practical use with EMI work. I suspect it is for intense near field only. Here's a link: http://www.wondermagnet.com/dev/magnet34.html <http://www.wondermagnet.com/dev/magnet34.html> Has anybody experienced this material? -kyle -----Original Message----- From: Wan Juang Foo [ mailto:[email protected] <mailto:[email protected]> ] Sent: Tuesday, August 07, 2001 8:28 PM To: EMC-PSTC Discussion Group Subject: Re: EMI sniffer goggles I suppose that can be achieve with some class of liquid crystals embedded in a polymer medium. The problem is that is the representation in the near field or just a plane (cross section). I will prefer a none intrusive gas or vapour that will 'glow' at different field intensity and colour, very much like a corona or aurora. :-) Now we can have a glass tank 'gas chamber' within an anechoic chamber to evaluate the field strengths in 3D. Then the argument will be that there will be different gasses for different frequent frequency ranges ;-) Just think about the possible effect on the environment. Dreams comes true when we want them to... Tim Foo, (or just call me 'Tim') E-mail: [email protected] ECE, School of Engineering, http://www.np.edu.sg/ece/ <http://www.np.edu.sg/ece/> Tel: + 65 460 6143 Ngee Ann Polytechnic, Fax: + 65 467 1730 535 Clementi Road, Singapore 599489 ------------------------------------------- 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: [email protected] with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Michael Garretson: [email protected] Dave Heald [email protected] For policy questions, send mail to: Richard Nute: [email protected] Jim Bacher: [email protected] All emc-pstc postings are archived and searchable on the web at: http://www.rcic.com/ click on "Virtual Conference Hall,"
