|Mar15-06, 06:31 PM||#1|
This is a tresure hunting MD, the design needs a way of discriminating from ferrous, none ferrous objects, and minerals in the ground, what are the limits
of such a machine ?
|Mar15-06, 10:06 PM||#2|
That depends on the field strength and frequency.
Try this - http://www.fastecservices.com/metal_d.htm
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