A mirror assembly and adjustment method of periscope tracking mechanism

Abstract

The invention discloses an adjustment method for reflectors of a periscopic type acquisition and tracking mechanism. According to the method, three theodolites are used for building coordinate systems to adjust the reflectors of the periscopic type acquisition and tracking mechanism, one theodolite serves as a datum optical axis through an installation datum plane, the datum is transmitted to the other two theodolites according to a geometrical optical principle to build one coordinate system so as to monitor the position of an orientation reflector in real time, then the position of the orientation reflector is adjusted well, the orientation reflector is locked and fixed, the position of a pitching reflector is monitored by rebuilding one coordinate system of another theodolite, the depth of parallelism of received light beams and emitted light beams of the periscopic type acquisition and tracking mechanism is greater than one thousandth according to the technical index requirement, and light tangency is avoided.

Description

technical field [0001] The invention relates to a mirror assembly and adjustment method, in particular to a high-precision periscope tracking mechanism mirror assembly and adjustment method, which belongs to the field of laser communication. Background technique [0002] In recent years, laser communication technology has developed rapidly, and the PAT (Pointing, Acquisition, Tracking) system is the key for laser terminals to realize inter-satellite links. There are mainly: periscope type, universal joint type, and swing mirror type. The periscope tracking mechanism is characterized by small moment of inertia, large rotation range, small motor power, simple locking device design, moderate mirror size, but complex assembly, large encoder motor bearing structure, and difficult mirror film system Therefore, the adjustment accuracy of the reflector is the key to the parallelism of the sending and receiving beams of the periscope tracking mechanism, which has a profound impact o...

AI Technical Summary

Problems solved by technology

This paper presents a calibration method for the parallelism of the visual axis, but this method cannot satisfy the adjustment of the mirror when the mechanical pointing to the zero position of the periscope follow-up mechanism, nor can it be applied to periscopes with different calibers. The installation and adjustment of the reflector of the tracking mechanism, and the application of the roof prism will introduce a large error, the tooling for placing the pentaprism is complicated, and the machining accuracy of the tooling will also affect the accuracy of the installation and adjustment

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