Three-floating gyro calibration test system

A three-floating gyro calibration test system is used for providing AC and DC power for gyro and various circuits and completing debugging, testing and calibration of the three-floating gyro, and comprises a test device and a digital universal meter. The test device comprises an AC power supply box, a test box, a magnetic levitation measurement and control box, a preamplifier, a gyro tool, a first digital universal meter, a second universal meter and a test data acquisition analyzer. The control of a gyro float in the spatial five degrees of freedom is realized by the magnetic levitation control circuit. A gyro temperature control loop is a premise of ensuring the normal work of the gyro in the set temperature point, a platinum resistor is taken as a sensitive element and a heating resistor is regarded as an actuator for heating the gyro. A force feedback loop and the gyro form a feedback system for testing gyro and calibrating each error factor. The gyro tool is controlled at a stable temperature point by an environmental temperature control circuit to provide a good temperature environment for the work of the gyro.