A dynamic imaging telescope performance detection device and method

Abstract

The invention relates to the field of telescope detection, in particular to a dynamic imaging telescope performance detection device and method. The device comprises: a laser, which is used to emit a laser beam from a beam emission point to the intersection of an optical axis, an elevation axis and an azimuth axis of the telescope; a mechanical Arm, one end of the parallel light pipe is connected to the mechanical arm, and the other end is the exit port. By adjusting the mechanical arm to adjust the laser beam to emit the laser beam from different positions, and to ensure that the laser beam reaches the intersection of the optical axis, the pitch axis and the azimuth axis light source, the light source is set at the end of the parallel light pipe connected to the mechanical arm, and used to emit parallel light beams from the parallel light pipe; turn off the laser beam and turn on the pre-set light source, and move the light source according to the motion trajectory to obtain the test The simulated motion trajectory of the target. Through the invention, the collimator light pipe of the dynamic target can enter the telescope at all times, and the movement trajectories of different moving targets can be simulated flexibly, so as to facilitate the detection of the telescope.

Description

technical field [0001] The invention relates to the field of telescope detection, in particular to a dynamic imaging telescope performance detection device and method. Background technique [0002] The imaging quality and tracking performance testing of large telescopes are important indicators for evaluating telescopes. At present, there are mainly two testing methods, outdoor testing and indoor testing. [0003] Outdoor detection methods usually use telescopes to detect observation targets, use aircraft, missiles, and stars as observation targets to obtain images, and judge the observation capabilities of telescopes by image quality. However, this method needs to move the telescope outdoors and find a suitable target. Especially when the telescope is relatively large, it not only needs a lot of manpower and material resources, but also is affected by external factors such as weather. [0004] Indoor detection usually uses dynamic targets for measurement. At present, there...

AI Technical Summary

Problems solved by technology

However, this method needs to move the telescope outdoors and find a suitable target. Especially when the telescope is relatively large, it not only needs a lot of manpower and material resources, but also is affected by external factors such as weather.

[0004] Indoor detection usually uses dynamic targets for measurement. At present, there are mainly single-degree-of-freedom targets, two-axis rotating targets and three-degree-of-freedom targets. The main method is to install the collimator on a one-dimensional, two-dimensional or three-dimensional moving platform. Rotate the platform to simulate the movement of a dynamic target by solving the method, and then image the target at the telescope to test the quality and tracking performance of the optical telescope. However, this method requires a specially designed target installation platform, generally using a T-shaped frame and a gantry structure. , or use a platform with azimuth and pitch rotation, and the generated target movement trajectory is relatively simple; in addition, if multiple telescopes are detected at the same time, it is necessary to move the telescope to the detected position, or move the detection device to the front of the telescope. If the telescope is relatively Large-scale and multiple units require a lot of manpower and material resources

Images