Path length controller for ring laser gyroscope
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United States of America Patent
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Sep 1, 1987
Grant Date -
N/A
app pub date -
Jun 11, 1984
filing date -
Jun 11, 1984
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A ring laser gyro path length controller has a cup-like fixture which mounts a piezoelectric actuator and is bonded directly to the gyro block. A mirror assembly is concentrically located within the fixture and is independently mounted to the gyro block thereby enabling independent assembly and disassembly of the fixture and the assembly. Diaphragm sections of the assembly are coaxially positioned and connected to a diaphragm section of the fixture so that bidirectional displacement of the assembly may occur and the moment generated by the actuator results in an axial deflection force on the assembly. A strip of material having a high coefficient of expansion is mounted to the piezoelectric actuator to augment the deflection force as temperature increases thereby reducing the power demands of the actuator.
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