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Date Posted: 19:51:20 03/15/02 Fri
Author: Ralph
Subject: Why Not ?
In reply to: Steve Herschbach 's message, "Re: Fisher FP-10 Magnetometer" on 15:22:45 03/15/02 Fri

If the FP-10 is a true no-motion flux-mag, why not take the sensory tip off the rod, and attach it to the center of an open faced coil on a good PI. Then you could re-package the control electronics somewhere up the coil rod of the PI, install a static-to-momentary toggle switch, and toggle the power supply (stepped to needed voltage) between the main detector (static mode) and the flux-mag (momentary mode) to reverse discriminate the target signal. If the PI picks up a signal that the flux-mag does not, you know it's non-ferrous. If they both pick it up, you know it's ferrous.

From the looks of the specs on the FP-10, the depth capabilities are up there with most flux-mags vs. IB and PI detectors with comparable coil/sensor sizes. To mount the MAG sensor, you might have to clip it within the PI circuits to keep the PI from reading the sensor head, but there would be no problem with the MAG reading the PI coil windings, since they are non-ferrous anyway.

"Possibilities"........

Ralph

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