Spacecraft quality characteristic comprehensive test board based on spherical air bearing

The invention discloses a spacecraft quality characteristic comprehensive test board based on a spherical air bearing. The test board comprises devices such as the spherical air bearing, a torsional pendulum driving device, a torsion bar spring, a torque balancing device, a clamp position locking device, a cylindrical air bearing and the like. The centroid position of a spacecraft is measured with a torque balancing method, and the rotary inertia of the spacecraft is measured with an air floatation torsional pendulum method. The device can measure the transverse centroid and the vertical axis rotary inertia simultaneously, and the measuring accuracy is improved by one time compared with a prior device.