关键词: 标校塔, 激光跟踪仪, 直线电机, 直线光栅尺, 稳定精度

Abstract:

In the process of the outfield calibration of radar,the position of the signal on the tower is changed by the wind disturbance within dozens of millimeters.Calibration accuracy of the Rader is influenced by the change of the signal position.A stable system with the laser tracker and two-dimension stable platform as the core is designed to resist the disturbance of the wind.The laser tracker is used to measure the position of the signal in time.Then the two-dimension stable platform is used to stabilize the signal position with the calculated compensation position.Experimental results show that the system has advantages such as high position stabilization accuracy,fast response speed.Great position stabilization accuracy is achieved better than 0.5 mm in 0.2 s.Favorable safeguard for the outfield precision calibration is provided by the stable system.

Key words: calibration tower;laser tracker;linear motor;linear encoder;stabilization accuracy