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Torsional rate sensor with momentum balance and mode decoupling

  • US 7,228,738 B2
  • Filed: 06/06/2005
  • Issued: 06/12/2007
  • Est. Priority Date: 06/06/2005
  • Status: Active Grant
First Claim
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1. A rate sensor comprising a plurality of generally planar masses, a drive axis in the plane of each of the masses, means for driving the masses to oscillate in phase opposition about the drive axes, an input axis perpendicular to the drive axes, sense axes perpendicular to the drive axes and the input axis, means mounting the masses for torsional movement about the sense axes in response to Coriolis forces produced by rotation of the masses about the input axis, and means responsive to the torsional movement about the sense axes for monitoring rate of rotation about the input axis.

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