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SYSTEMATIC DISC RESONATOR GYROSCOPE TUNING

  • US 20090301194A1
  • Filed: 06/09/2009
  • Published: 12/10/2009
  • Est. Priority Date: 06/10/2008
  • Status: Active Grant
First Claim
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1. A method of tuning an axisymmetric resonator, comprising:

  • determining transfer functions between drive electrode voltages and sense electrode voltages of the axisymmetric resonator including Coriolis coupled vibration modes of the axisymmetric resonator;

    determining fourth order asymmetry correction components using the transfer functions of the axisymmetric resonator;

    determining an asymmetry component change sensitivity to changes of one or more bias voltages based on a systematic physical model of the axisymmetric resonator; and

    determining values of the one or more bias voltages to tune the Coriolis coupled vibration modes of the axisymmetric resonator to degeneracy from the fourth order asymmetry correction components and the asymmetry component change sensitivity to the changes of the one or more bias voltages.

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