Measuring and testing – Speed – velocity – or acceleration – Acceleration determination utilizing inertial element
Patent
1995-10-10
1998-02-24
Williams, Hezron E.
Measuring and testing
Speed, velocity, or acceleration
Acceleration determination utilizing inertial element
7351423, 7351416, G01P 1513
Patent
active
057213780
ABSTRACT:
A servo acceleration sensor comprises a pendulum assembly composed of a pendulum made up of a torque coil provided on one side of a metal plate, a free end section from which the pendulum is suspended, a base end section, and a pair of plate springs connecting the free end section and the base end section, a permanent magnet placed away from the metal plate, a pendulum assembly support frame that supports the pendulum assembly with the base end section being secured, a displacement sensor that senses the displacement of the pendulum and outputs it in the form of an electric signal, and a sensing circuit that supplies power to the torque coil on the basis of the electric signal and thereby generates magnetic force to return the pendulum to the original position and also senses acceleration, wherein the free end section and the base end section are made of synthetic resin and the free end section, the base end section, the plate springs, and the metal plate are integrated into an entity.
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Furuichi Kenji
Goto Moritaka
Ikeda Ryota
Imai Takayuki
Fujikura Ltd.
Kwok Helen C.
White John P.
Williams Hezron E.
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