Acceleration sensor

Details Acceleration sensor Acceleration sensor

1994-02-16

1995-05-16

Williams, Hezron E.

Measuring and testing

Speed, velocity, or acceleration

Acceleration determination utilizing inertial element

G01P 1508

Patent

active

054150400

ABSTRACT:
An disclosed an acceleration sensor for detecting three accelerations includes acceleration in a direction of a Z axis and angular accelerations about X and Y axes. The sensor includes an inner support, a ring-shaped weight surrounding the inner support, and an outer support surrounding the weight, all disposed in a plane including the X and Y axes which are perpendicular to each other. The weight includes four objective parts for detection which are arranged in the above-mentioned plane. The objective parts are located in line symmetry with respect to the X and Y axes and arranged at intervals of 90.degree. about the center of gravity of the weight. The inner support and the weight are connected together by a thin and elastically deformable first bridge. The weight and the outer support are also connected together by a second bridge of a similar configuration. These bridges each include a ring portion, a pair of inner connecting portions and a pair of outer connecting portions. The inner connecting portions and the outer connecting portions are away by 90.degree. from each other about the Z axis. Amounts of displacement of the four objective parts on the weight in a direction of the Z axis are detected by condensers, respectively.

REFERENCES:
patent: 4699006 (1987-10-01), Boxenhorn

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