Reliability analysis of spherical six axis redundant inertial measurement unit

Jintao Xu; Ailing Tian

doi:10.1117/12.2679329

15 May 2023 Reliability analysis of spherical six axis redundant inertial measurement unit

Jintao Xu, Ailing Tian

Author Affiliations +

Proceedings Volume 12699, Third International Conference on Sensors and Information Technology (ICSI 2023); 1269910 (2023) https://doi.org/10.1117/12.2679329
Event: International Conference on Sensors and Information Technology (ICSI 2023), 2023, Xiamen, China

Abstract

Fiber optic gyro (FOG) is a kind of angular velocity gyro based on the Sagnac effect, and the high reliability of long lifespan of the FOG are very important to the development of high requirement security control equipment. Spherical inertial measurement unit is designed, six axis redundancy FOGs is adopted, and the sensitive axis of any two gyros are not colinear, and the sensitive axis of any three gyros are not coplanar in this combination structure with a highly reliable orthogonal oblique configuration, when one of the sensitive components fails, other FOGs can also ensure the normal operation of the system, which greatly improves the accuracy, reliability and stability of the gyroscope. In the inertial measurement unit (IMU), the system works properly as long as the gyros in three different directions are working properly.

Citation Download Citation

Jintao Xu and Ailing Tian "Reliability analysis of spherical six axis redundant inertial measurement unit", Proc. SPIE 12699, Third International Conference on Sensors and Information Technology (ICSI 2023), 1269910 (15 May 2023); https://doi.org/10.1117/12.2679329

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