From: "Terrell W. Fritz"
Date: Mon, 16 Oct 2000 19:26:09 -0600
Subject: Re: [TSSP] Surprising secondary voltage profiles
The voltage transducer is a fairly big shielded metal box. I fear it would not work well like this. I will keep this in mind and try it if all else fails. Cheers, Terry At 07:59 AM 10/16/2000 +0100, you wrote: >Concerning V profile measurements, > >To avoid the problem of probe capacitance to earth, you >could measure the differential voltage, ie the gradient, >which does not require a grounded reference wire to go >into the coil field, ie > > | | > | | > | | <--- > | | | > | | | > | | [V-probe] ----> fibre > | | | > | | | > | | <--- > | | > | | > | | > | | > | | > >Not to scale! The two probe points would be fairly close, say >an inch or two. The V-probe reports the difference voltage. You >then slide the probe-pair up the coil to produce a chart of >dv/dx, which you then integrate for V. > >Cheers, >-- >Paul Nicholson, >Manchester, UK. >--
Maintainer Paul Nicholson, paul@abelian.demon.co.uk.