Laser Gyro Comprising a Cylindrical Solid Amplifier Bar, and Associated Method for Exciting a Cylindrical Solid Amplifier Bar of a Laser Gyro

A laser gyro includes a cylindrical solid amplifier bar having an axis of revolution. The laser gyro also includes: an annular piezoelectric element for exciting said solid amplifier element at a predetermined frequency f, along said axis of revolution, said annular piezoelectric element being mount...

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Bibliographic Details
Main Author LOIL ERIC
Format Patent
LanguageEnglish
Published 26.04.2012
Subjects
GYROSCOPIC INSTRUMENTS
MEASURING
MEASURING DISTANCES, LEVELS OR BEARINGS
NAVIGATION
PHOTOGRAMMETRY OR VIDEOGRAMMETRY
PHYSICS
SURVEYING
TESTING
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Summary:A laser gyro includes a cylindrical solid amplifier bar having an axis of revolution. The laser gyro also includes: an annular piezoelectric element for exciting said solid amplifier element at a predetermined frequency f, along said axis of revolution, said annular piezoelectric element being mounted fixed on one of the two end cross sections of the cylindrical solid amplifier bar so that its axis of revolution coincides with said axis of revolution of said cylindrical solid amplifier bar; and an annular dynamic counterweight mounted fixed on the free end cross section of said annular piezoelectric element so that its axis of revolution coincides with said axis of revolution of said cylindrical solid amplifier bar; said cylindrical solid amplifier bar being dimensioned so as to be considered nondeformable at said excitation frequency f.
Bibliography:Application Number: US200913129094