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Frame assembly and dither drive for a coriolis rate sensor

  • US 4,848,156 A
  • Filed: 07/26/1988
  • Issued: 07/18/1989
  • Est. Priority Date: 07/17/1987
  • Status: Expired due to Fees
First Claim
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1. A method for mounting two accelerometers for use as a combined Coriolis rate and acceleration sensor, and decoupling extraneous motion that would introduce errors in an output from the sensor, comprising the steps of:

  • (a) mounting the accelerometers on two opposed mounting pads so that a preferred axis of each accelerometer is aligned with the other;

    (b) linking the opposed mounting pads in parallel alignment, with a flexing parallelogram frame enabling the accelerometers to vibrate back and forth in a direction transverse to their preferred axes;

    (c) attaching a central portion of the parallelogram frame to a supporting structure about which the parallelogram frame flexibly pivots;

    (d) rigidly coupling the two mounting pads along a path that extends in alignment with a line through a center of percussion associated with each accelerometer, insuring that both accelerometers are subjected to the same motion directed along their preferred axes.

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