Precision test method of two-freedom-degree tracking angle measurement device

Abstract

The invention relates to a precision test method of a two-freedom-degree tracking angle measurement device. The two-freedom-degree tracking angle measurement device is installed on a biaxial-rate-position turntable plane, and the turntable plane is level; a hexagonal mirror block is installed on the top surface of the two-freedom-degree tracking angle measurement device. The rotation angle of the table-board azimuth of the biaxial-rate-position turntable plane is used as a true value, a self-collimating light pipe system is used as a benchmark, the two-freedom-degree tracking angle measurement device can rotate in opposite directions, and tests are repeatedly carried out to obtain the azimuth tracking angle precision. An electronic level instrument is installed on the two-freedom-degree tracking angle measurement device to be leveled. The pitching rotation angle of the biaxial-rate-position turntable plane is used as a true value, a display value of the electronic level instrument is used as the benchmark, the two-freedom-degree tracking angle measurement device can rotate in the opposite directions, and the tests are repeatedly carried out to obtain the pitching tracking angle precision. By adopting the method, the test precision is guaranteed, the detection principle is simple, the simplicity in operation is realized, and the precision detection efficiency for a system-stage two-freedom-degree angle measurement device can be effectively improved.

Description

technical field [0001] The invention belongs to the field of opto-mechanical precision detection, and in particular relates to a precision testing method of a two-degree-of-freedom tracking angle measuring device, which is used for testing the angle measurement precision of the device. Background technique [0002] In the ground guidance system, the guidance system is required to achieve fast dynamic tracking of the target and provide high-precision azimuth coordinates of the target in real time, including the horizontal azimuth rotation angle and pitch angle. Double high-precision theodolites or other equipment are usually used to test the accuracy of the angle measuring device. However, this detection method is cumbersome, time-consuming and laborious, and requires high conditions of use. Moreover, the accuracy of the inspection equipment is not enough, which hinders the delivery efficiency of batch production devices. Contents of the invention [0003] The technical pro...

AI Technical Summary

Problems solved by technology

Usually, double high-precision theodolites or other equipment are used to test the accuracy of the angle measuring device. However, this detection method is cumbersome, time-consuming and laborious, and requires high conditions of use. Moreover, the accuracy of the inspection equipment is not enough, which hinders the delivery efficiency of the batch production device.

Images