Method and device for quantitative adjustment of mirror attitude based on coarse-fine combination

Abstract

The invention relates to a rough and fine combined reflecting mirror attitude quantitative adjusting method and a rough and fine combined reflecting mirror attitude quantitative adjusting device, belonging to the technical field of optical remote imaging equipment, aiming at improving the reflecting mirror attitude adjusting efficiency of an optical-mechanical system during adjustment and reducing time consumption and labor cost. The method comprises the steps that a reflecting mirror is supported through three supporting rods with a spherical hinge respectively to form a supporting method with three adjustment variables; each supporting rod is connected with a reflecting mirror fixing support through an adjusting device with dual functions of rough and fine adjustment, and the axial feeding amount of the supporting rods can be controlled and indicated according to the demands; the attitude adjustment amount required by the reflecting mirror is converted into axial adjustment amount required by each supporting rod according to a format, and the adjustment amount of each supporting rod is quantitatively adjusted through an adjusting mechanism according to the axial adjustment amount required by each supporting rod and obtained through calculation, so as to realize the translational motion of the reflecting mirror along a Z direction and the tilting degree-of-freedom adjustment of a mirror surface around an X axis and a Y axis.

Description

technical field [0001] The invention relates to a method and an adjustment device for quantitatively adjusting the attitude of a reflective mirror combined with coarse and precise, which can realize the quantitative adjustment of two rotational and one translational degrees of freedom of the reflective mirror, and belongs to the technical field of optical remote sensing imaging equipment. Background technique [0002] During the assembly and adjustment of optical remote sensing imaging equipment, the attitude adjustment of the mirror is one of the important work contents of the optical performance adjustment of the whole machine. At present, the main adjustment methods are the training gasket method and the three-top three-top wire adjustment method. The training spacer method is to add an adjustment spacer with a certain training allowance between the reflector and its supporting structure. According to the actual needs during optical adjustment, use grinding to remove a ce...

AI Technical Summary

Problems solved by technology

This method is easy to implement and can achieve the effect of online adjustment and system performance evaluation, but there are six adjustment variables in the adjustment, which makes the adjustment difficult, and improper feed control will cause the mirror to bear additional bending loads and affect system performance

In addition, when using this adjustment method, the feed rate of each point is mainly controlled by the rotation angle of the screw, and it is difficult to display the real-time reading. Therefore, the system adjustment efficiency is greatly limited by the technical level and work experience of the installer.

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