Method and system for calibrating parallelism of incongruous turning light pipe based on double-mirror splicing

A calibration system and calibration method technology, which is applied in the field of parallelism calibration method and system of anisotropic deflection light pipe, can solve the problems of high cost, low comprehensive calibration accuracy of double theodolite mutual aiming method, high risk of calibration with large aperture plane mirror method, etc. problems, achieve cost reduction, improve calibration efficiency, and lower cost
CN113267146AActive Publication Date: 2021-08-17XI'AN INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
XI'AN INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI
Publication Date
2021-08-17

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Abstract

The invention relates to a method and system for calibrating the parallelism of an incongruous turning light pipe based on double-mirror splicing. The method comprises the following steps: step 1, setting a system; step 2, adjusting azimuth angles and pitch angles of reflectors of the first plane mirror device and the second plane mirror device through the same high-precision gyro theodolite respectively, so that north orientation values L and pitch values I of the two reflectors are the same, and double-mirror splicing is realized; step 3, setting a to-be-measured incongruous reflex light tube, using the high-precision gyro theodolite in the step 2 to measure an orientation value L1 and a pitching value I1 of the reflector of the second plane reflector device, keeping the position of the high-precision gyro theodolite unchanged, rotating a sighting part, measuring an azimuth value L2 and a pitching value I2 of a reflector of the first plane reflector device by using a high-precision gyro theodolite through the incongruous reflex light tube to be measured, and calculating an azimuth error delta L and a pitching error delta I according to a formula 1: delta L = L1-L2-180 degrees and a formula 2: delta I = I1 + I2-2ia-180 degrees.
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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...

Claims

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