MEMS inertial component rotation-modulation testing system based on ultrasonic motor

The invention discloses an MEMS inertial component rotation-modulation testing system based on an ultrasonic motor. The MEMS inertial component rotation-modulation testing system comprises a rotary table, an inertial component, a wireless transmission unit, a data processing unit and an upper computer. The rotary table comprises a base and further comprises a coded disc, the ultrasonic motor, a table top, a driver and a bearing main shaft which are arranged inside a rotary table shell in a sleeved mode, wherein the bearing main shaft is arranged in the center of the base. The coded disc and the ultrasonic motor are coaxially arranged on the bearing main shaft, and a rotating shaft of the ultrasonic motor is fixedly connected with the table top. The upper computer sends signals to the data processing unit and outputs drive control instructions. The driver of the rotary table drives the ultrasonic motor to rotate, drives the bearing main shaft to rotate and drives the coded disc and the table top to coaxially rotate. After the inertial component obtains the angular rate information of the rotary table, the angular rate information is transmitted to the data processing unit through the wireless transmission unit to carry out strapdown resolving, and a resolving result is fed back to the upper computer. The MEMS inertial component rotation-modulation testing system has the advantages of being high in interference resisting capability, good in electromagnetic compatibility, wide in environmental application range and small and being integrated.