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Originally Posted by Jim
Hum....about a two (2) inch signal line.
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Actually I could not find a line. I can get the signal all around the wire from any direction. It seems more like the field strength gradient you would expect from an electric field around a wire. The signal gets so weak by the time I move the probe away farther than 3 inches that I can only see noise... Must be the inverse square law at work.
But my PI detector sends a signal to the alligator clip even though yer sposta use a coil to pick up magnetic signals. I think it is inducing eddy currents in the clip up to about 8-9 inches enough make a signal I can see on the oscilloscope screen. It might work better if I took the detector away in a field somewhere where there's less noise and use a battery power instrument to test it.
Hmmm.... I wonder if that eddy current principle could be used to find buried treasure?
Best wishes,
J_P