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Date Posted: 01:01:08 08/04/02 Sun
Author: Ralph
Subject: Pulse induction question.....
In reply to: Reg 's message, "Re: Curious......" on 22:09:14 08/03/02 Sat

Thanks much Reg for the detailed post. Great information.

A quick question concerning the PI you are working on. You state that you are trying to get it to detect as small a nugget as 2 or 3 grains ? What kind of pulse delay speeds are you using to get PI response on such small pieces ? I know Eric Foster has built industrial machines in the past that operated with as short as 1 uSec pulse delay, but the shorter the delay, the more other undesirable signal is introduced into the receiver in the process. Have you found a way of balancing out shorter decay ground signal while allowing very short pulse delay sensitive enough to detect such nuggets or flakes ? Sounds interesting.

Ralph

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