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
Has anybody experienced this material? -kyle -----Original Message----- From: Wan Juang Foo [mailto:f...@np.edu.sg] 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: f...@np.edu.sg ECE, School of Engineering, http://www.np.edu.sg/ece/ Tel: + 65 460 6143 Ngee Ann Polytechnic, Fax: + 65 467 1730 535 Clementi Road, Singapore 599489