Accelerometer with temperature compensation and matched force tr

Details Accelerometer with temperature compensation and matched force tr Accelerometer with temperature compensation and matched force tr

1991-11-13

1994-03-01

Chapman, John E.

Measuring and testing

Speed, velocity, or acceleration

Temperature compensator

73517AV, 73DIG1, G01P 1508

Patent

active

052897192

ABSTRACT:
Accelerometer having a frame, a proofmass, one or more force sensitive transducers, and a strut interconnecting the transducers with the proofmass and the frame so that forces are applied to the transducers in accordance with movement of the proofmass along the sensitive axis. The transducers and the strut have similar thermal expansion properties and are arranged in such manner that they can expand together with changes in temperature independently of the frame and the proofmass without imposing any significant strain on the transducers. In certain disclosed embodiments, the transducers are formed as a unitary planar structure from a single piece of crystalline quartz material, and the strut is formed of the same material.

REFERENCES:
patent: 4244225 (1981-01-01), Greenwood
patent: 4751849 (1988-06-01), Paros et al.
patent: 4856350 (1989-08-01), Hanson
patent: 4926689 (1990-05-01), Hanson
patent: 4939935 (1990-07-01), Amand
patent: 5005413 (1991-04-01), Novack et al.

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