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Steerable three-dimensional magnetic field sensor system for detection and classification of metal targets

  • US 7,030,759 B2
  • Filed: 04/30/2001
  • Issued: 04/18/2006
  • Est. Priority Date: 05/02/2000
  • Status: Expired due to Term
First Claim
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1. A sensor system for inducing eddy currents in objects comprising:

  • an antenna configured for generating a magnetic field in a direction perpendicular to current flow in a plurality of wires along a plane of the antenna;

    at least two receiver units in proximity to the plane of the antenna, each of said two receiver units configured for converting the eddy currents into a first signal and a second signal; and

    an amplifier for receiving the first and second signals.

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