Combined electromagnetic sensor and magnetometer

Details Combined electromagnetic sensor and magnetometer Combined electromagnetic sensor and magnetometer

G - Physics

01

V

G01V 3/11 (2006.01) F42D 5/02 (2006.01) G01V 3/08 (2006.01) G01V 3/10 (2006.01) G01V 3/165 (2006.01)

Patent

CA 2666993

A combined electromagnetic and magnetometer detection system for detecting objects. The system includes a primary electromagnetic transmitter for generating a primary magnetic field; an electromagnetic sensor for sensing secondary magnetic fields generated by a target region subjected to the primary magnetic field; a magnetometer sensor substantially centered at a center of the primary magnetic field; a compensation transmitter for generating a compensating magnetic field that substantially negates the primary magnetic field across the magnetometer sensor; and a signal generator electrically connected to the primary electromagnetic transmitter and the compensation transmitter for driving the transmitters to generate the primary magnetic field and the compensating magnetic field, respectively.

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