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Re: Field Mill Voltmeter

Original poster: "Jim Lux by way of Terry Fritz <twftesla-at-uswest-dot-net>" <jimlux-at-earthlink-dot-net>

you should be able to turn up details of field mills...

What you need is a sensitive AC voltmeter, preferably synchronized to the
rotation rate of the vanes.  Almost any high impedance op amp amplifier
will probably do.

Tesla list wrote:
> Original poster: "Dr Brian H Le Page by way of Terry Fritz
<twftesla-at-uswest-dot-net>" <B.H.Le-Page-at-surrey.ac.uk>
> I have been given the option of acquiring the mechanical parts of a field
> mill voltmeter.  The electronics are missing.  Is it possible to build the
> electronics for this equipment and are there any web resources.  Sorry the
> details are a bit sketchy but this is all I know at present.  I have not
> turned up much searching the web.
> Dr B