Measuring and testing – Speed – velocity – or acceleration – Angular rate using gyroscopic or coriolis effect
Patent
1988-07-26
1989-03-14
Levy, Stewart J.
Measuring and testing
Speed, velocity, or acceleration
Angular rate using gyroscopic or coriolis effect
G01P 346
Patent
active
048116025
ABSTRACT:
The apparatus includes a parallelogram frame (50) including two accelerometer support surfaces (24, 26) on which are mounted two accelerometers (20 and 22) having their sensitive axes in parallel alignment. The accelerometer support surfaces are connected to opposite ends of a flex member (52), which includes six flexures (32, 34, 36, 38, 40, 42) having parallel bending axes. Two of the flexures (34, 38) are disposed at opposite ends of one side of each flexure member, and have a "long" axis that is substantially parallel to the sensitive axes of the accelerometers and aligned with a line connecting their centers of percussion. The centers of mass of the accelerometers and their associated supporting surfaces are coincident with the centers of percussion, and are rigidly connected by the two flexures and by one side (30) of each flex member. This solid metal path between the centers of percussion minimizes common mode errors.
REFERENCES:
patent: 4445376 (1984-05-01), Merhav
patent: 4510802 (1985-04-01), Peters
patent: 4590801 (1986-05-01), Merhav
patent: 4665748 (1987-05-01), Peters
Bell Robert P.
Joike Trevor B.
Levy Stewart J.
Sundstrand Data Control Inc.
Wanner James A.
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