Noise and speed measurement precision calibration device and method of fiber-optic gyroscope under vibration state

Abstract

The application belongs to the technical field of inertial measurement, and particularly relates to a noise and speed measurement precision calibration device and method of a fiber-optic gyroscope in a vibration state. Two supports are fixedly connected with a base, a rotating shaft is installed on the upper part of the two supports, the rotating axis of the rotating shaft is parallel to the installation plane of the base, the two ends of the rotating shaft are connected with a first fiber-optic gyroscope and a second fiber-optic gyroscope after penetrating through the two supports, two damping blocks are arranged on the inner side of the rotating shaft close to the two supports, a first accelerometer is installed on the middle part of the rotating shaft, a cantilever is further arranged on the middle part of the rotating shaft, the sensitive axis of the first accelerometer is perpendicular to the axis of the cantilever, a second accelerometer is installed on the end of the cantilever away from the rotating shaft, a third fiber-optic gyroscope is arranged below the first fiber-optic gyroscope, and the third fiber-optic gyroscope is installed on the base. The application provides support for the design and precision estimation of a steady image system of a high-performance aviation optical imaging device based on a fiber-optic gyroscope.

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