Ring laser gyroscope mount

Details Ring laser gyroscope mount Ring laser gyroscope mount

1990-10-31

1992-05-26

Turner, Samuel A.

Optics: measuring and testing

By dispersed light spectroscopy

Utilizing a spectrometer

G01C 1968

Patent

active

051161303

ABSTRACT:
Disclosed herein is a Ring Laser Gyroscope Mount comprising a low coefficient of expansion metal Invar sleeve and mount coupler. The sleeve may be secured to the gyroscope pedestal by being screwed and affixed to a relatively high coefficient of thermal expansion material pedestal, such as HyMu 80. The sleeve is attached also to the glass frame by cementing it at selected locations within the central mounting aperture of the gyroscope frame. This securement procedure makes the assembly stiffer in directions perpendicular to the axis of the coupler. At least one concentric groove which surrounds the coupler is machined into at least one side of the frame to reduce stress at gyroscope mirror surfaces during thermal excursions. The clearance gap where the cement is placed, the groove depth and shape, and the sleeve and coupler are designed to be stiff but not induce distortion.

REFERENCES:
patent: 4115004 (1978-09-01), Hutchings
patent: 4267995 (1981-05-01), McMillan
patent: 4299363 (1981-11-01), Datschefski
patent: 4411527 (1983-10-01), Gamertsfelder
patent: 4425040 (1984-01-01), Ljung
patent: 4436423 (1984-03-01), Kumar
patent: 4634091 (1987-01-01), Butler
patent: 4771644 (1988-09-01), Meron
patent: 4779985 (1988-10-01), Wirt
patent: 4790657 (1988-12-01), Kozma
patent: 4890812 (1990-01-01), Chechile
Multioscillator Laser Gyros; Weng W. Chow et al.; IEEE Journal of Quantum Electronics, vol. QE-16, No. 9, Sep. 1980.

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