A high-speed dynamic pressure gyro motor ground contact speed test system

The present invention relates to a high-speed dynamic pressure gyro motor ground touch rotating speed test system, and relates to the motor test field. The high-speed dynamic pressure gyro motor ground touch rotating speed test system comprises a motor control unit, a sensor unit, a high-speed data acquisition unit, a central processing unit, a voltage comparison unit, a signal conditioning unit, a communication unit, an upper computer data analyzing and resolving unit, a test result displaying and storing unit, etc., can measure the ground touch rotating speed of a motor and detect the characteristic of a dynamic pressure gas bearing accurately, and can further obtain the state characteristic indexes of a dynamic pressure bearing. The system of the present invention adopts a counter electromotive force measurement method, can measure the characteristic parameters of the motor under the states, such as a floater, a gyro instrument, an inertial platform, etc., and enables the problem that after being assembled, the gyro motor only can measure the current and the voltage, but can not measure other characteristic parameters to be solved effectively. The measurement system can evaluate the operation state of the gyro motor real-timely, and has very important actual engineering significance for enhancing the reliability of a gyro instrument product and improving the quality and precision of a dynamic pressure motor product.