Controlled vibration angular rate sensor

Measuring and testing – Speed – velocity – or acceleration – Angular rate using gyroscopic or coriolis effect

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G01P 904

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active

051933918

ABSTRACT:
Apparatus for measuring an angular rate of turn employing vibrating elements which are so arranged that the reaction forces from both the driven deflection vibration mode as well as from the reaction deflections from the angular turn rate are contained within the assembly. The apparatus further employs means for selectively controlling the stiffness of the structure for undesirable modes of vibration while allowing maximum flexible coupling for the desirable modes of vibration thus minimizing the effects of outside vibrational influences and changing boundary conditions from causing errors in the turn rate signals. The assembly further employs unique non-contacting motion drivers and detectors for driving and sensing the movement of the elements without adversely affecting that motion. The apparatus further employs unique damping means which can dampen unwanted vibrational influence for selected modes and directions.

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