Servo type accelerometer

Details Servo type accelerometer Servo type accelerometer

1987-12-18

1989-08-15

Chapman, John

Measuring and testing

Speed, velocity, or acceleration

Acceleration determination utilizing inertial element

G01A 1513

Patent

active

048563331

ABSTRACT:
A servo type accelerometer comprises a photoelectric element which is made of a single packaged element and has two separated photoelectric parts, a light-emitting element opposite to the photoelectric element, a pendulum having a member for limiting an optical path of light emitted by the light-emitting element, the member being arranged between the photoelectric element and the light-emitting element, and a frame for supporting the pendulum. The accelerometer further comprises a detection unit for detecting a rotational displacement of the pendulum corresponding to acceleration by use of output signals of the photoelectric parts to produce a detection signal corresponding to the rotational displacement, and torque generating unit for generating a torque corresponding to the detection signal to drive the pendulum towards its original position.

REFERENCES:
patent: 2947176 (1960-08-01), Perry
patent: 2995935 (1961-08-01), Eyestone et al.
patent: 3897690 (1975-08-01), Hanson
patent: 4507965 (1985-04-01), Stratton et al.
patent: 4598586 (1986-07-01), Danielson
patent: 4649748 (1987-03-01), Fukano et al.

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