Pathlength control assembly for ring laser gyroscopes

Details Pathlength control assembly for ring laser gyroscopes Pathlength control assembly for ring laser gyroscopes

G - Physics

01

C

345/10

G01C 19/66 (2006.01)

Patent

CA 2034880

A B S T R A C T PATHLENGTH CONTROL ASSEMBLY FOR RING LASER GYROSCOPES Disclosed herein is a Pathlength Control Assembly for Ring Laser Gyroscope comprising, in a preferred embodiment, a mirror, coupled to a mirror housing including a mirror post, wherein the mirror is mounted on (or is an integral part of) an axially deflectable membrane of the housing. A pair of piezoelectric transducers are responsive to an electronic input signal and mounted to a backing plate. The transducers sandwich the backing plate and deform the backing plate to drive the mirror post to axially deflect said membrane. In this manner, the backing plate serves a dual function to both support the piezoelectric elements and drive the mirror post.

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