Nonplanar three-axis ring laser gyro with shared mirror faces

Details Nonplanar three-axis ring laser gyro with shared mirror faces Nonplanar three-axis ring laser gyro with shared mirror faces

1987-04-06

1989-01-03

McGraw, Vincent P.

Optics: measuring and testing

By dispersed light spectroscopy

Utilizing a spectrometer

372 94, G01C 1964

Patent

active

047952580

ABSTRACT:
A ring loser gyroscope for sensing rotations about three orthogonal axes. A frame includes and internal arrangement of three intersecting cavities, each of which is arranged for measuring rotation about one of the orthogonal axes. Each cavity comprises a non-planar arrangement of four cavity legs. A pair of anodes and a cathode cooperate with the intersecting cavities and, in one embodiment, with bypass tubes, whereby undesired Fresnel-Frizeau phase shifts are eliminated by gas flow effect cancellations.

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patent: 4616929 (1986-10-01), Bernelin et al.

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