Measuring and testing – Speed – velocity – or acceleration – Acceleration determination utilizing inertial element
Patent
1982-04-02
1983-12-27
Gill, James J.
Measuring and testing
Speed, velocity, or acceleration
Acceleration determination utilizing inertial element
7386238, 73517R, G01P 1513
Patent
active
044223315
ABSTRACT:
A laser accelerometer produces an output, phase modulated beam which is polarized in a direction perpendicular to the direction from which acceleration forces are applied. In the accelerometer a laser beam is directed through a resonant cavity toward a detector. A proof mass disposed adjacent the cavity, stresses the cavity in response to acceleration force. Acceleration detunes the cavity. Detected changes in the cavity output results in a feedback voltage change being coupled to the cavity and to an output detector. This change in voltage to restore cavity resonance is proportional to the input acceleration.
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Bush Freddie M.
Gibson Robert P.
Gill James J.
Lane Anthony T.
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