Research on the control loop for Solid Vibratory Gyroscope

This work presents the design, analysis, simulation of the control loop of Solid Vibratory Gyroscope (SVG). It can be used to measure the angular velocity of a rotating body based on the inertia effect of the standing wave in two vibration modes of the axisymmetric resonator. In order to reduce the response time, increase the response bandwidth and improve the sensitivity, it is necessary to design the gyroscope control loop and control strategy. A theoretical analysis on the traditional SVG is performed based on the ring model. To realize easily, the implementation modal is given. The typical structure of SVG control includes eight elements which are equally distributed around the circumference. The novel control loop based on the liner demodulator is introduced. It achieves the mode shape stability vibration used the control loop throughout the phase and amplitude of x and y. The numerical simulation is presented to verify the effectiveness of the proposed control scheme using the HRG parameters.