Re: Electrometer design? (fwd)

[Steven Roys <sroys@xxxxxxxx>]

---------- Forwarded message ----------
Date: Wed, 7 Jul 2004 11:04:41 -0600 (MDT)
From: Steven Roys <sroys@xxxxxxxx>
To: hvlist@xxxxxxxxxx
Subject: Re: Electrometer design? (fwd)



---------- Forwarded message ----------
Date: Tue, 06 Jul 2004 21:02:56 -0400
From: Charles Brush <cfbrush@xxxxxxx>
To: High Voltage list <hvlist@xxxxxxxxxx>
Subject: Re: Electrometer design? (fwd)

>
>
>I thought about removing wedges of copper from ordinary Cu-fibreglass
>laminate to make the disks (which leaves the disks in one piece).
>Anyone see anything wrong with that plan?
>
>Malcolm


I have a couple of handheld field mills for industrial use that I am
going to try using for storm monitoring the next time a storm gets
close to us (hopefully tomorrow).  One has a chart recorder output
which I have tried using with a little A/D box and charting software
on the mac and it seems to work well.   I am fascinated by
atmospheric electricity and would be interested in hearing about
other people's setups.  One of my favorite devices and one of the
simplest which we discussed on this list a few years ago is the
little NE2 relaxation oscillator hooked up to a pointed rod.  I was
thinking that this one might be interesting to try with a sensitive
current meter in place of the relaxation oscillator.  A "Franklin's
Bells" setup could be interesting as well to try provided the
terminal is not placed to high and some other precautions are taken.

Zap!


Charles Brush