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Rate sensor

  • US 4,898,032 A
  • Filed: 07/06/1988
  • Issued: 02/06/1990
  • Est. Priority Date: 07/08/1987
  • Status: Expired due to Term
First Claim
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1. An angular rate sensor comprises:

  • a pair of driven tines and excitation means, responsive to an applied drive signal, for exciting a vibration of the driven tines, a pair of output tines coupled mechanically to the driven tines; and

    detection means responsive to a vibration of the output tines for generating a detection signal related to angular rate;

    means for generating a feedback signal related to torsional imbalance of the driven tines, and feedback means, responsive to the feedback signal, for driving the driven tines towards a condition of torsional balance.

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