Thermal infrared imager flyback compensation assembly zero position detection calibration system and calibration method

The invention belongs to the field of optical instrument detection and relates to a zero detection and calibration system and method for a flyback compensation assembly of a thermal infrared imager, in particular to a zero detection and calibration device and method for the flyback compensation assembly of a search-and-follow type thermal infrared imager. The whole system is arranged on the air floating platform and is fastened with the air floating platform through fastening bolts, and the relative position is not displaced. The system is composed of a photoelectric autocollimator, a hollow retroreflector, a flyback compensation assembly, a flyback compensation assembly driving circuit, a direct-current power supply and a PC display terminal. The system firstly performs position calibration of the flyback compensation assembly encoder, then performs zero position test of the flyback compensation assembly encoder, and finally performs calibration of the flyback compensation assembly. The system device is reas