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A two-dimensional rotating top precision detection method

A positioning accuracy and azimuth technology, applied in the field of two-dimensional rotating top accuracy detection, can solve problems such as difficult implementation, low detection accuracy, and difficult calibration and measurement, and achieve the effect of intuitive data support and improved accuracy

Active Publication Date: 2019-11-01
BEIJING INST OF ENVIRONMENTAL FEATURES
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In the process of realizing the present invention, the inventors of the present invention found that the prior art has the following problems: 1) The detection accuracy of the traditional detection method is low, and the orthogonality between the azimuth axis and the pitch axis cannot be detected
However, the traditional detection method cannot reflect the influence of the overall deformation of the two-dimensional rotating top on the accuracy
3) Use the light pipe to detect the positioning accuracy of the azimuth motion, and the detection of the positioning accuracy of the azimuth motion can only be performed when the two-dimensional rotating top is in a horizontal state
If it is necessary to perform azimuth motion positioning accuracy detection after two-dimensional turning and pitching, it is necessary to separately manufacture multi-dimensional adjustment tooling, which is very difficult to calibrate and measure, and it is difficult to achieve in actual measurement

Method used

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  • A two-dimensional rotating top precision detection method
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  • A two-dimensional rotating top precision detection method

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Experimental program
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Effect test

Embodiment 1

[0038] figure 2 It is a schematic diagram of the steps of the two-dimensional rotating top accuracy detection method according to the first embodiment of the present invention. The embodiment of the present invention is to measure the azimuth motion accuracy, the pitch motion accuracy, and the degree of orthogonality between the azimuth axis and the pitch axis of the two-dimensional rotating top in the no-load state. Such as figure 2 As shown, the two-dimensional rotating top accuracy detection method in Embodiment 1 of the present invention includes:

[0039] Step S201 , placing a reflector on the top surface of the two-dimensional turntable, and directing the direction of the laser light reflected by the reflector to the laser tracker.

[0040] Wherein, the reflector can also be called "target mirror" or "optical red circle reflective ball", which can be used in conjunction with a laser tracker (or called "tracking head") to measure the three-dimensional coordinates of t...

Embodiment 2

[0060] image 3 It is a schematic diagram of some steps of the two-dimensional top rotation accuracy detection method in the second embodiment of the present invention. The method of the embodiment of the present invention comprises figure 2 The steps of the illustrated embodiment also include image 3 The two-dimensional rotating top accuracy detection process under the eccentric load state in . Such as image 3 As shown, the two-dimensional rotating top accuracy detection process under the eccentric load state includes:

[0061] Step S301 , placing an eccentric load and a reflector on the top surface of the two-dimensional rotating top, and directing the direction of the laser light reflected by the reflector to the laser tracker.

[0062] Wherein, the reflector can also be called "target mirror" or "optical red circle reflective ball", which can be used in conjunction with a laser tracker (or called "tracking head") to measure the three-dimensional coordinates of the t...

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Abstract

The invention relates to a two-dimensional rotation top precision detecting method, which relates to the technical field of electromagnetic scattering. The two-dimensional rotation top precision detecting method comprises the steps of: adjusting a pitch angle and an azimuth angle of the two-dimensional rotation top to initial angles, making the two-dimensional rotation top to do azimuth motion ata first angle interval, and acquiring coordinates of a reflector under each theoretical azimuth angle by means of a laser tracker; making the two-dimensional rotation top to do pitching motion at a second angle interval, and acquiring coordinates of the reflector under each theoretical pitch angle by means of the laser tracker; and determining positioning precision of the azimuth motion and the pitching motion as well as an orthogonal degree of an azimuth axis and a pitch axis of the two-dimensional rotation top in a no-load state according to the coordinates of the reflector under each theoretical azimuth angle and the coordinates of the reflector under each theoretical pitch angle. By adopting the steps, the accuracy degree of the positioning precision of the azimuth motion and the pitching motion obtained through detection can be improved, the detection of the orthogonal degree of the azimuth axis and the pitch axis is realized, and the comprehensiveness of precision detection of the two-dimensional dome can be improved.

Description

technical field [0001] The invention relates to the technical field, in particular to a two-dimensional rotating top precision detection method. Background technique [0002] Radar cross section (RCS, radar cross section) measurement is an important method to study the electromagnetic scattering characteristics of targets. The compact field RCS measurement system is mainly composed of shielded microwave anechoic chamber, compact field, two-dimensional low-scattering metal support, one-dimensional foam support, signal transceiver and acquisition processing equipment, measurement auxiliary equipment, etc. The two-dimensional low-scattering metal bracket is a kind of support structure, which has a strong load-bearing capacity and can realize the continuous movement of the target in the two-dimensional directions of azimuth and pitch to simulate the attitude angle of the target's motion state. [0003] The two-dimensional turn top is a structure used to install the target on th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01B11/00G01B11/16
CPCG01B11/002G01B11/16
Inventor 孔德旺王玉伟莫崇江
Owner BEIJING INST OF ENVIRONMENTAL FEATURES
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