All,

I am wondering if anyone has done immunity / susceptibility testing on Floor 
standing metal detecting devices. What I think the rub is, all of the test 
setups are based upon using a metal ground plane for the tests (there are a 
couple exceptions however, primarily in the 61000-4-x series of standards floor 
standing equipment is setup on a ground plane with some sort of insulation 
barrier. The question is, how do you get a metal detector to work reliably when 
it is in such close proximity to the ground plane and detecting a false 
positive.

More curious than anything if anyone has worked on one of these and has an 
elegant solution. One thought I had was to line the ground plane with ferrite 
tile floor / wall panel squares (2' x 2' kind e.g 600mm x 600mm), but where 
they work at such low frequency I assumed that wouldn't help.

Larry K. Stillings
Compliance Worldwide, Inc.
Test Locally, Sell Globally and Launch Your Products Around the World!
FCC - Wireless - Telecom - CE Marking - International Approvals - Product Safety
357 Main Street
Sandown, NH 03873
(603) 887 3903 Fax 887-6445
www.complianceworldwide.com<http://www.complianceworldwide.com/>

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