Re: Electrostatic Field Question


A very high impedance electrometer will
indicate this voltage, but presumably, a
10 Mohm DMM will not due to excessive
loading.
I did a, (by no means exhaustive) search on it over google, and all of
the ones ive seen use force, displacement etc, mechanical
meausremtns...and transducers etc. to give you a voltage. all of them
ive seen have to measure some mechanical displacement, and then give
you a voltage.
<snip>


John, do a search on "electrometer" or "fieldmeter" or "E-field probe" or "field mill" and I think you'll find a lot of non-mechanical measurement techniques. The field mill uses a rotating "chopper" but that is not really a transducer, but rather a device to convert a DC voltage to AC for "easier amplification".


Chuck

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