Double optical path automatic positioning system of Shenguang Ⅲ facility diagnostic instrument platform

The platform which is used to carry diagnostic instruments on Shenguang facility requires high positioning accuracy and working stability，and can aim at the target with reliability. A double optical path automatic adjusting and aiming system is designed, its position accuracy is 20 m. It employs a double optical image system and a 3-DOF motion components. In this system, visual servo technology is used to realize the automatic aiming. Automatic positioning test indicates that pointing accuracy is 11 m in x direction, 12 m in y direction and radical positioning accuracy is 14 m. Laser shot test with X-ray framing camera shows that the automatic aiming system can satisfy the projects requirement.