View Full Version : Electromagnetic Interference and Faraday Cages

Gregory S. Sawicki Um
02-10-2003, 12:16 PM
We have electromagnetic interference in our laboratory coming from a
transformer room next door. This interference is giving us trouble with EMG

1. Is there a device that measures E-M noise levels similar to a Geiger
Counter for radiation? We want to pinpoint areas in our lab that
are "noisiest" and confirm our suspicions.

2. I have read the archived postings about Faraday Cages to eliminate E-M
interference; it seems like this could be an option for us. Is it feasible to
cage in the transformer room to prevent E-M interference from escaping to our
lab and other nearby labs?

3. If it is feasible would you recommend 1. a do it yourself strategy 2.
hiring a university electrician 3. or hiring someone with expertise in the area
(if there are such experts)? i.e. How much experience/expertise is required to
built a sufficient cage?

4. How much would a Faraday Cage cost? The transformer room is 10x10x9.

As always replies will be posted.

Gregory S. Sawicki, M.S. MechE
Human Neuromechanics Lab
Dept. of Movement Science
Division of Kinesiology
401 Washtenaw Avenue
Ann Arbor, MI 48109-2214

ph: 734-615-1711
e-mail: gsawicki@umich.edu

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