A Novel Electromagnetic Suspended Rate Integrating Vibratory Gyroscope

Abstract

A novel rate integrating vibratory gyroscope with Foucault pendulum structure is introduced. It uses magnetic suspension technology to suspend pendulum (resonator) to eliminate friction at anchor, so as to improve the damping uniformity to achieve stable swing. Firstly, the basic principle of the rate integrating gyroscope is analyzed. Then, the main structure of the magnetic suspension gyroscope is introduced, and the pendulum has a length of 112 mm and a period of 0.68 s with the Q factor of 2998. Additionally, the magnetic field distribution of the structure is simulated. Finally, the designed gyroscope prototype is tested, and the experimental results show that the novel gyroscope can measure the rotation angle directly, and the angular gain factor is about 1.