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Magnetometer

  • US 8,525,514 B2
  • Filed: 03/19/2010
  • Issued: 09/03/2013
  • Est. Priority Date: 03/19/2010
  • Status: Active Grant
First Claim
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1. A method of operating an electronic magnetic field measuring device comprising a plurality of anisotropic magnetoresistive (AMR) sensors, the method comprising:

  • realigning a respective magnetic domain orientation of each AMR sensor in only one direction;

    subsequent to the realigning of the respective magnetic domain orientation of each AMR sensor, detecting an output signal from the plurality of AMR sensors, the output signal being representative of a local magnetic field; and

    implementing a next realignment step a predetermined amount of time after the prior realignment step.

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