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Calibratable Multidimensional Magnetic Point Sensor

  • US 20110031960A1
  • Filed: 08/19/2008
  • Published: 02/10/2011
  • Est. Priority Date: 08/31/2007
  • Status: Active Grant
First Claim
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1. A calibratable magnetic field sensor for sensing a first and a second spatial component of a magnetic field in a reference point, wherein the magnetic field comprises a first and a second measurement field component and/or a first and a second calibration field component, comprising:

  • a first sensor element arrangement comprising at least a first and a second sensor element for sensing the first magnetic field component, which comprises a first measurement field component and/or a first calibration field component, with respect to a first spatial axis in the reference point;

    a second sensor element arrangement for sensing the second magnetic field component, which comprises a second measurement field component and/or a second calibration field component, with respect to a second spatial axis in the reference point, wherein the two spatial axes pass along linearly independent position vectors;

    an excitation line arranged with respect to the first sensor element arrangement so that, when impressing a default current into the excitation line, a pair of different asymmetrical default calibration field components in the first sensor element and in the second sensor element is generated with respect to the first spatial axis.

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