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MAGNETIC SENSOR

  • US 20070188168A1
  • Filed: 03/13/2007
  • Published: 08/16/2007
  • Est. Priority Date: 08/26/1999
  • Status: Abandoned Application
First Claim
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1. A magnetic sensor, comprising:

  • a. a series circuit, wherein said series circuit comprises;

    i. at least one first coil operatively associated with a magnetic circuit of a vehicle body, wherein said at least one coil is adapted to cooperate with a time-varying magnetic flux in said vehicle body, said time-varying magnetic flux is generated, sensed, or both generated and sensed by said at least one first coil, and said time-varying magnetic flux is responsive to a condition of said vehicle body that is sensed by the magnetic sensor;

    ii. at least one capacitance in series with said at least one first coil; and

    b. a signal source adapted to generate a time-varying signal, wherein said time varying signal is operatively coupled to said series circuit so as to generate a current in said series circuit, said current flows through both said at least one first coil and said at least one capacitance, and a capacitive reactance of said at least one capacitance at least partially cancels an inductive reactance of said at least one first coil of an impedance of said series circuit.

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