try these people. They make a 12 digit magnetic field meter, YES 12 digits!
earth's field approx 50uT, Geometrics has been a world leader in the design and manufacture of geophysical instrumentation since 1968. http://www.geometrics.com Geometrics 408 954 0522 2190 Fortune Drive fax 408 954 0902 San Jose, CA 95131 --- [email protected] wrote: From: S Drysdale <[email protected]> To: [email protected] Subject: [PSES] DC Magnetic emissions. Date: Sat, 24 May 2014 21:28:18 -0400 Good day all, Is anyone here familiar with very sensitive DC magnetic emissions? I am particularly interested in performing measurements in the low mG range, well below the value of the earths magnetic field. I believe a 3 axis helmholtz coil for earth field compensation and a sensitive DC milligauss meter will be required. Any specifications, methods, guidance documents, equipment recommendations, or general advice would be greatly appreciated. Best Regards, Scott Drysdale OOO - Own Opinions Only - ---------------------------------------------------------------- This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. To post a message to the list, send your e-mail to <[email protected]> All emc-pstc postings are archived and searchable on the web at: http://www.ieee-pses.org/emc-pstc.html Attachments are not permitted but the IEEE PSES Online Communities site at http://product-compliance.oc.ieee.org/ can be used for graphics (in well-used formats), large files, etc. Website: http://www.ieee-pses.org/ Instructions: http://www.ieee-pses.org/list.html (including how to unsubscribe) List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas <[email protected]> Mike Cantwell <[email protected]> For policy questions, send mail to: Jim Bacher: <[email protected]> David Heald: <[email protected]>
