Re: Differential voltage probes 1

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "kayaker by way of Terry Fritz <teslalist-at-qwest-dot-net>" <kayaker-at-sbcglobal-dot-net>

Hello All:-)

How about using a Fieldmill.

Doug
----- Original Message -----
From: "Tesla list" <tesla-at-pupman-dot-com>
To: <tesla-at-pupman-dot-com>
Sent: Monday, June 30, 2003 6:34 AM
Subject: RE: Differential voltage probes 1


 > Original poster: "Steve Conner by way of Terry Fritz
<teslalist-at-qwest-dot-net>" <steve.conner-at-optosci-dot-com>
 >
 > One that's attached to a Tesla coil spewing sparks and inducing stupid
 > voltages in any ground loop that happens to be in your measurement system.
 > Also handy for looking at gate voltages in the upper half of a bridge.
 >
 > Anyway, I'm going off this whole diff amp thing, since I realized that the
 > CMRR depends on the matching of the two impedances (referred to the diff
amp
 > box ground) you're probing, and they're unlikely to ever be matched in
real
 > life. I'm going to investigate the optocoupler route instead.
 >
 > Steve C.
 >
 > -----Original Message-----
 > From: Tesla list [mailto:tesla-at-pupman-dot-com]
 > Sent: 30 June 2003 00:17
 > To: tesla-at-pupman-dot-com
 > Subject: Re: Differential voltage probes 1
 >
 > What sort of microcontroller needs a 500 volt differential probe?
 > KEN
 >