Adjusting and correcting method of light path of photoelectric system tracking-pointing precision measuring device

Abstract

The invention provides an adjusting and correcting method of a light path of a photoelectric system tracking-pointing precision measuring device. The measuring device is mainly composed of an opticalplatform, a laser light source, ground glass, a small-hole diaphragm, a beam splitter, a parallel light pipe collimating mirror, a high-frame-frequency CCD camera and the like, wherein the laser lightsource, the ground glass, the small-hole diaphragm, the beam splitter, the parallel light pipe collimating mirror, the high-frame-frequency CCD camera and the like are installed on the optical platform. By the adoption of a plane mirror, an optical autocollimation, a pentaprism and a theodolite, the positions of the laser light source, the small hole diaphragm and the high-frame-frequency CCD camera of the photoelectric system tracking-pointing precision measuring device are adjusted and corrected, the adjusting and correcting method has the advantages of being high in precision, easy to operate, convenient and visual, the problem of adjusting and correcting the light path of the photoelectric system tracking-pointing precision measuring device is solved, and not only is technological guarantee provided for the development of a space laser communication tracking-pointing technology, but also a reference basis is provided for designing a space laser communication system tracking-pointing precision measuring device.

Description

technical field [0001] The invention belongs to the technical field of optical metrology and testing, and mainly relates to an optical path adjustment method of a tracking and aiming accuracy measuring device of a photoelectric system, in particular to an optical path adjusting method of a tracking and aiming accuracy measuring device of a space laser communication system. Background technique [0002] Tracking and aiming accuracy is one of the important index parameters to evaluate the tracking and aiming ability of the optoelectronic system. There are mainly four-quadrant detector method, parallel light tube method, etc. The four-quadrant detector method has high sensitivity. Since the laser spot of the photoelectric system is usually not a uniformly distributed rectangular spot, the output value of the four-quadrant differential amplification and the position of the laser spot are nonlinear, so it is not suitable for high-precision measurement. The collimator method usua...

AI Technical Summary

Problems solved by technology

The four-quadrant detector method has high sensitivity. Because the laser spot of the photoelectric system is usually not a uniformly distributed rectangular spot, the output value of the four-quadrant differential amplification and the position of the laser spot are nonlinear, which is not suitable for high-precision measurement.

This method only involves the adjustment of the focal plane of the collimator, and cannot be used for the adjustment of the target plane of the high-frame-rate CCD camera in the tracking and aiming accuracy measurement device of the space laser communication system.

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