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Star-connected sensor

  • US 6,731,107 B2
  • Filed: 01/14/2002
  • Issued: 05/04/2004
  • Est. Priority Date: 05/15/2000
  • Status: Expired due to Fees
First Claim
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1. A rotary assembly comprising a rotor mounted to rotate in a stator about a mean axis of rotation, and comprising a detector for detecting the radial position of the rotor within the stator, itself comprising three sensors distributed in the stator at substantially 120°

  • from one another about the rotor and at equal distances from the mean axis of rotation, wherein;

    the sensors are inductive sensors placed facing a segment of the rotor that is made of magnetic material;

    a balanced three-phase sinusoidal voltage source having a neutral point feeds the inductive sensors which are wired in a star configuration;

    means sense the output voltage between the neutral point of the balanced three-phase voltage source and the connection point common to the star-connected inductive sensors, and deduce therefrom the radial position of the rotor within the stator.

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