Ruggedized structure for fiber optic gyroscope

G - Physics – 01 – C

Patent

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G01C 19/72 (2006.01)

Patent

CA 2358072

A rectification error reducer for a fiber optic gyroscope, which is an intensity servo or compensator for reducing vibration effects in the optical signals caused by modulation at vibration frequencies induced by the gyroscope- operating environement. The vibration effects may be detected in signals from the photodiode output in amplitude form, which is used in a control system to null out optical intensity variations at the frequencies of vibration.

L'invention concerne un réducteur d'erreur de rectification pour gyroscope à fibre optique, qui consiste en un compensateur ou en un asservisseur d'intensité conçu pour réduire les effets des vibrations dans les signaux optiques, provenant de la modulation aux fréquences vibratoires induites par l'environnement dans lequel fonctionne le gyroscope. Les effets des vibrations peuvent être détectés dans les signaux provenant de la sortie de la photodiode sous forme la forme d'amplitude utilisée dans le système de commande pour annuler les variations d'intensité optique aux fréquences vibratoires.

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