Measuring and testing – Speed – velocity – or acceleration – Acceleration determination utilizing inertial element
Patent
1980-09-08
1982-06-29
Gill, James J.
Measuring and testing
Speed, velocity, or acceleration
Acceleration determination utilizing inertial element
7386261, 318632, G01P 1513
Patent
active
043367186
ABSTRACT:
A pendulously supported proof mass accelerometer wherein a pulse generator applies periodic pulses to a bridge circuit comprising variable resistors and pick-off capacitors to generate a restoring current to maintain the proof mass in a null position. The variable resistors of the bridge circuit provide a means of varying the null position of the proof mass to achieve substantially balanced linear operation of the accelerometer circuitry. A bias compensation circuit applies a correction current to an output circuit which is equal in magnitude and opposite in direction to output current produced by static bias factors of the accelerometer.
REFERENCES:
patent: 2193707 (1940-03-01), Baumann
patent: 2193910 (1940-03-01), Wilson
patent: 2995935 (1961-08-01), Eyestone et al.
patent: 3797320 (1974-03-01), Clampitt
patent: 4088027 (1978-05-01), Hernandez et al.
patent: 4094199 (1978-06-01), Holdren et al.
patent: 4144764 (1979-03-01), Hartzell
Gill James J.
Lear Siegler, Inc.
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