Computer Interfacing
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DSP DISCRIMATOR

A better metal detector


 

       Computer Interfacing Forum Index -> Pulse Induction metal detector
Author Message
VK6TQ
Guest







Jul 09, 2013 9:07 am

New to this forum but was thinking about the use of a DSp in metal detector. Why not drive the coil in resonance with a sin wave. Using a discriminator type circuit also known as coincidence detector when done with a PLL have look at the phase shift of the drive frequency using the DSP. The detector will also produce low level DC shift with the sweeping of the coil over a target. Anyone played with this concept.

       Computer Interfacing Forum Index -> Pulse Induction metal detector
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