The hemispherical resonator gyro(HRG)is a new solid state vibrating gyro that offers high preci-sion,high reliability,and a long life.It has broad application prospects in the aerospace field.This study analyzes the main factors affecting the working life of the HRG,proposes measures to improve the working life of gyro-scopes,conducts long-term continuous gyroscope life tests,and verifies the long-term performance of the main indi-cators of the HRG.The results show that the HRG has a stable performance and a working life of as many as 20 years during long-term electrification,thus meeting the application requirements of long-term space missions,such as deep-space detectors.
hemispherical resonator gyrolong-life characteristiclife verification test
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