Optical dynamic target device with high accuracy

Abstract

The invention relates to an optical dynamic target device with high accuracy, which comprises an adjusting platform, a main revolution shafting, a rotating arm, a multifunctional multiplexing dynamic laser self-collimation meter, an external fixing reference reflector, a computer and the like, wherein the multifunctional multiplexing dynamic laser self-collimation meter simulates a space motion target, is simultaneously used as an active angle measuring unit, is combined with the external fixing reference reflector to convert the shake of an optical dynamic target shafting into the dynamic change of a two-dimensional angle; the online measurement is carried out on the dynamic error quantity which is caused by the shake of the dynamic target shafting; and a computer modifies the static calibration value of an optical dynamic target in real time according to the shake error of the shafting, thereby accurately determining the space angle of the dynamic target at any moment. The device provided by the invention effectively improves the dynamic accuracy of the optical dynamic target and provides the more accurate detection device and detection method for the measuring accuracy of a photoelectric tracking measuring system.

Description

technical field [0001] The invention relates to an optical dynamic target, in particular to a high-precision optical dynamic target device. The invention can be used for tracking performance detection of photoelectric tracking systems such as two-dimensional pointing mirrors, and can be used for indoor detection and verification of dynamic tracking performance and measurement accuracy of photoelectric tracking measurement systems such as photoelectric theodolites. Background technique [0002] The dynamic target is a commonly used device for indoor detection of the tracking performance of optoelectronic instruments. It can provide simulated space targets when the tracking system of optoelectronic instruments is tested indoors. Functionally, dynamic targets can be divided into tracking targets and measurement targets. The tracking target cannot achieve position closure and cannot accurately control the target's movement position. It can only be used as a target for testing t...

AI Technical Summary

Problems solved by technology

This solution is a non-real-time compensation for the shaking of the motor shaft system. Since different motion states of the target will cause different shaft shaking errors, the synthetic space angle is very inaccurate.

Moreover, when measuring the sway of the motor shaft system in advance, it is difficult to ensure the time consistency between the autocollimator for measuring the sway error of the dynamic target shaft system and the computer controlling the dynamic target, which puts forward higher requirements for the performance of the dynamic target electrical system

[0008] Solution (3) is real-time compensation for motor shaft shaking, but this solution requires an additional auxiliary detection optical system, which is complex in structure and expensive

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