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Faraday effect continuous circuit flux concentrating magnetic field sensor

  • US 5,483,161 A
  • Filed: 12/11/1992
  • Issued: 01/09/1996
  • Est. Priority Date: 12/11/1992
  • Status: Expired due to Fees
First Claim
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1. A magneto-optic magnetic field sensor comprising:

  • a high-permeability magnetic flux concentrator;

    a high-permeability magneto-optic material located in physical contact with said magnetic concentrator and providing a continuous path of high-permeability between the magneto-optic material and the magnetic flux concentrator;

    said magnetic concentrator further comprising a cross-sectional area substantially greater than the cross-sectional area of said magneto-optic material;

    an optical detector;

    a sensing beam of light; and

    said magnetic flux concentrator further including a channel therethrough allowing the sensing beam of light to transmit through the channel and simultaneously through the magneto-optic material, and then to the optical detector.

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