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- Newsgroups: sci.electronics
- Path: sparky!uunet!elroy.jpl.nasa.gov!usc!cs.utexas.edu!torn!maccs!mcshub!csx.cciw.ca!u009
- From: u009@csx.cciw.ca (G. Stewart Beal)
- Subject: Re: measuring milli-gauss a.c. magnetic fields
- Organization: Canada Centre for Inland Waters
- Date: Mon, 23 Nov 1992 16:23:42 GMT
- Message-ID: <1992Nov23.162342.28322@csx.cciw.ca>
- References: <JOHN.92Nov20144516@django.think.com>
- Lines: 14
-
- In article <JOHN.92Nov20144516@django.think.com> john@django.think.com (John Richardson) writes:
- >Does anyone know of a *simple inexpensive* circuit or device for
- >measuring milli-gauss a.c. magnetic fields?
- >
- How about a small, 1 layer coil of specified cross section, connected to a
- high gain, calibrated (AC) amplifier and full wave rectifier?
- Do the calculations to figure the coupling, and therefore the flux from the
- DC voltage on the output.
-
- Regards, Stu Beal, VE3MWM, U009@CS.CCIW.CA,
- National Water Research Institute, Burlington, Ontario, Canada.
-
- "She was a savage beauty - wild, untamed (or at least not house-broken yet)."
-
-