Using an optical scanning galvanometer to suppress image shift in a circumferential scanning detection system

To suppress the image shift of the circumferential scanning detection system, an advanced optical scanning galvanometer is used for high-speed image shift compensation. From the design of, to our knowledge, a new type of scanning galvanometer, the mathematical model of the galvanometer transfer function is obtained, the time sequence logic of circumferential scanning image shift compensation control is designed, and an image shift compensation test system is set up, including a target, an azimuthal rotary table, an image shift compensation galvanometer, and other functional components. The results show that the image shift compensation system has a sweep frequency of 80 Hz, the exposure time is 5 ms, the detector image is clear, and the circumferential scanning image shift is suppressed. The design of the control logic and control method meets the demand of the high-frequency image shift compensation in the circumferential scanning detection system. This paper has reference value for image shift compensation in circumferential scanning detection system imaging.