Research of movement speed control of scanning probe for draw shaft

In order to solve image blurring, distortion and discontinuousness caused by unstable movement speed of scanning probe of panoramic scanner for draw shaft, structure of movement device of panoramic scanner was analyzed and relationship model between movement speed of scanning probe and angular speed of rotary drum was established, which was taken as theory evidence for setting angular speed of rotary drum. A closed-loop PI control method with anti-windup for integral was adopted to control movement speed of scanning probe. The experiment and application results show that the movement speed control strategy realizes movement with stable speed of scanning probe, and scanning images are clear and without distortion.