Method and system for calibrating the parallelism of an anisotropic deflection light pipe based on double-mirror splicing

Abstract

The invention relates to a method and system for calibrating the parallelism of an anisotropic deflection light pipe based on double-mirror surface splicing. The method includes: step 1, setting up the system; step 2, adjusting the azimuth and elevation angles of the reflectors of the first plane mirror device and the second plane mirror device respectively through the same high-precision gyro theodolite, so that both The north direction azimuth value L and the pitch value I are the same to realize double-mirror splicing; step 3, set the anisotropic refraction light pipe to be measured, and use the high-precision gyro theodolite in step 2 to measure the azimuth of the reflector of the second plane reflector device Value L 1 and pitch value I 1 , keep the position of the high-precision gyro theodolite unchanged, rotate the aiming part, and use the high-precision gyro theodolite to measure the azimuth value L of the mirror of the first plane mirror device through the anisotropic deflection light tube to be measured 2 and pitch value I 2 , according to formula 1: ΔL=L 1 -L 2 ‑180° and Equation 2: ΔI=I 1 +I 2 -2i a Calculate azimuth error ΔL and elevation error ΔI for ‑180°.

Description

technical field [0001] The invention relates to the calibration of the parallelism of an anisotropic deflection light pipe, in particular to a method and system for calibrating the parallelism of an anisotropy deflection light pipe based on double mirror splicing. Background technique [0002] As an optical instrument, the deflection light tube is widely used in the field of directional aiming and is an important part of the automatic aiming platform. The main function of the deflection light pipe is to establish the connection between the optical transmission device and the inertial group platform, realize the vertical transmission of the azimuth reference information under a certain height difference condition, and finally assist in the completion of positioning and orientation. [0003] Refracting light pipes are mainly divided into two types: the same direction refracting light pipe and the anisotropic refracting light pipe. The parallelism of light entering and exiting...

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Problems solved by technology

[0006] The purpose of the present invention is to solve the technical problem of high calibration risk and high cost in the calibration of the existing anisotropic deflection light pipe, and the low accuracy of comprehensive calibration in the double theodolite mutual aiming method, and to provide a method based on Method and system for calibrating parallelism of anisotropic deflection light pipe with double-mirror splicing

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