Proofmass suspension assembly for accelerometers

Details Proofmass suspension assembly for accelerometers Proofmass suspension assembly for accelerometers

1990-05-22

1992-03-17

Chapman, John E.

Measuring and testing

Speed, velocity, or acceleration

Temperature compensator

73517AV, 7386259, G01P 1508

Patent

active

050957490

ABSTRACT:
Proofmass suspension assembly for use in accelerometers and the like. The assembly includes a support element, a responsive element mounted on the support element for response to an externally applied stimulation, a first crystal connected between the responsive element and the support element, a second crystal connected to one of the elements, and a compensation arm connected to the second crystal and to the other of said elements, whereby an externally applied stimulation will place one of the crystals in compression and the other of the crystals in compression. The compensation arm has a thermal expansion property such that any difference in thermal expansion between the responsive element and the first crystal produces translation but no rotation of the responsive element relative to the support element.

REFERENCES:
patent: 4718275 (1988-01-01), Norling
patent: 4751849 (1988-06-01), Paros et al.

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