Larryz Posted December 18, 2012 Share Posted December 18, 2012 Some metals are not magnetic I had a hunch that they might use electromagnetic induction rate of change of flux linkage etc but does this work for gold etc Link to comment Share on other sites More sharing options...
mathematic Posted December 19, 2012 Share Posted December 19, 2012 http://www.wiziq.com/tutorial/43401-Metal-detectors-and-LCR-circuits Link to comment Share on other sites More sharing options...
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