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System and method for measuring pointing accuracy of arrayed corner reflectors

A corner reflector and pointing accuracy technology, which is applied in the field of array corner reflector pointing accuracy measurement system, can solve the problems of low measurement efficiency and complicated measurement process, and achieve the effect of high measurement accuracy and reduced error

Active Publication Date: 2019-06-28
西安中科西光光电科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In order to solve the technical problems of complex measurement process and low measurement efficiency in the existing method for measuring the pointing accuracy of corner cubes of arrayed corner reflectors, the present invention provides a system and method for measuring pointing accuracy of arrayed corner reflectors

Method used

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  • System and method for measuring pointing accuracy of arrayed corner reflectors
  • System and method for measuring pointing accuracy of arrayed corner reflectors
  • System and method for measuring pointing accuracy of arrayed corner reflectors

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] Such as figure 1 As shown, the structural schematic diagram of the pointing accuracy measurement system of the arrayed corner reflector includes a light source 3, a star point plate 4, a collimator 5, a semi-transparent and semi-reflective plane mirror 2, a shrinking lens 13, an optical filter 6, a CCD camera 7 and PC machine 8, the light source emits parallel light through the star point plate and the collimator, and the parallel light is vertically incident on the semi-transparent and semi-reflective plane mirror. On the transmitted light path of the light beam, there are placed a shrinking lens, a filter and a CCD assembly in sequence, and the CCD assembly is connected with a PC.

[0046] The star point plate 3 exits the parallel light path through the parallel light tube, and the parallel light is refracted to the angular array reflector to be measured through the semi-transparent and semi-reflective plane mirror, and the array angle reflector to be measured reflect...

Embodiment 2

[0049] Embodiment 2: The process of building the pointing accuracy measurement system of the array corner reflector:

[0050] 1. Determination of the 45° angle position of the semi-transparent and semi-reflective plane mirror:

[0051] 1. Utilize the working principle of pentaprism 11 to establish the 90° benchmark of the position included angle of the first theodolite 9 and the second theodolite 10:

[0052] according to image 3 Shown position places pentaprism 11, then the first theodolite 9 is placed on the front end face (incident surface aperture) of pentaprism 11, the second theodolite 10 is placed on pentaprism 11 exit surface position, passes through the cross division of first theodolite 9 Reticle observes the image plane cross reticle of the second theodolite 10, guarantees that the cross centers of the two reticles coincide, and establishes the 90° datum of the two theodolites.

[0053] 2. Determine the position of the semi-transparent and semi-anti-plane mirror:...

Embodiment 3

[0061] The method for measuring pointing accuracy of an array corner reflector comprises the following steps:

[0062] 1) Build a pointing accuracy measurement system for arrayed corner reflectors;

[0063] 2) The light source passes through the star point plate and collimator to generate parallel light, which is incident on the semi-transparent and semi-reflective plane mirror;

[0064] 3) reflected by the semi-transparent and semi-reflective plane mirror to the array corner reflector to be tested, and the array corner reflector to be tested receives the star point image;

[0065] 4) The array corner reflector to be tested reflects the star point image and enters the narrowing lens through the semi-transparent and semi-reflective plane mirror, and then focuses on the target surface of the CCD component through the filter;

[0066] 5) Observe the imaging position of the star point image reflected by the reflector at different angles through the screen of the PC, and measure t...

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Abstract

The invention relates to an array angle reflector pointing precision measuring system and method. The system comprises a light source, a star point plate, a collimator, a half-transparent and half-reflective planar mirror, a contraction lens, a light filter sheet, a CCD (charge coupled device) camera and a PC. The light source passes through the star point plate and the collimator and generates parallel light. The parallel light penetrates vertically the half-transparent and half-reflective planar mirror; a to-be-detected array angle reflector is arranged on light reflection path of the half-transparent and half-reflective planar mirror. The contraction lens, the light filter sheet, the CCD assembly are all arranged on the light reflection path of the half-transparent and half-reflective planar mirror in order. The CCD assembly is connected with the PC. According to the invention, technical problems in the prior art of the complexity and low measuring efficiency in the measuring process of a corner cube prism pointing precision of an array angle reflector are resolved; the method is also capable of directly measuring the corner cube prism pointing precision of a large diameter array angle reflector without combining and judging data obtained for plural times; therefore, errors caused from plural times of measurements can be reduced.

Description

technical field [0001] The invention belongs to the field of array corner reflectors, and in particular relates to a pointing precision measurement system and a measurement method for array corner reflectors. Background technique [0002] The working principle of the corner cube prism: a beam of parallel light enters from one diagonal surface of the corner cube prism, is internally reflected by the other three diagonal surfaces, and then exits from the diagonal surface. It is mainly used in the field of precise measurement. [0003] According to the design requirements and practical applications, array corner reflectors have been used in various fields of aerospace and military. Due to the large number of corner cubes in the array corner reflector, it is required that the pointing accuracy deviation of each corner cube and the intermediate corner cube is less than 10". Correct the corner cubes with large pointing accuracy deviations in time to ensure that the design specific...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M11/02
Inventor 段战军
Owner 西安中科西光光电科技有限公司