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Antenna attitude accuracy measurement system and measurement method

A technology of precision measurement and attitude, which is applied in the directions of measuring devices, measuring angles, surveying and navigation, etc., and can solve the problems of scratching the front, dial indicator needle hitting the front, time-consuming and labor-intensive problems, etc.

Active Publication Date: 2020-09-15
CHINA ELECTRONIC TECH GRP CORP NO 38 RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] During the satellite antenna darkroom test, the position accuracy relationship between the antenna array and the probe running surface of the test sampling rack is very important. At present, the relevant units use a mechanical dial indicator to fix the position of the probe on the sampling rack, and use the walking path of the sampling rack to , continuously use the dial gauge stylus to touch the antenna front to measure the data, and finally adjust the attitude of the antenna front according to the measurement data. Since the moving process of the sampling rack is very slow, the dial gauge needs to pull the stylus back when moving. , otherwise it will scratch the front surface, resulting in time-consuming and labor-intensive measurement process, and high safety risk. The walking system of the sampling rack is controlled by the background personnel. The background personnel are not clear about the location of the entire data point collection, and can only be used by front-line professionals. Inform the background staff to operate the sampling rack step by step to the designated position for measurement, so sometimes human operation errors and wrong instructions of the walking system may occur, resulting in the risk of the dial indicator stylus hitting the front

Method used

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  • Antenna attitude accuracy measurement system and measurement method
  • Antenna attitude accuracy measurement system and measurement method
  • Antenna attitude accuracy measurement system and measurement method

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Embodiment 1

[0039] The measurement system structure of this embodiment is as follows figure 1 As shown, it includes an articulated arm 1 , a data acquisition and computing system 3 , a cable assembly 2 connecting the articulated arm 1 and the data acquisition and computing system 3 , and an antenna array 4 to be tested. The articulated arm 1 is arranged between the sampling rack and the antenna front 4, the articulated arm 1 communicates with the data acquisition and computing system 3 through the cable assembly 2, and the articulated arm 1 is used to collect the antenna front to be measured The distance between the point to be measured on 4 and the walking plane of the sampling rack, the data acquisition and calculation system 3 receives the coordinate value of any point in the measurement space collected by the articulated arm 1 in real time, and calculates it based on the coordinates of the origin of the articulated arm 1 equipment itself The relative coordinate value of any point, and...

Embodiment 2

[0049] After multiple antenna single boards are combined and installed in the load compartment, they are finally deployed together on the load compartment to form a large front, and the attitude adjustment at this time is performed before deployment. The measurement system of this embodiment adds two autocollimating theodolites on the basis of the system of embodiment 1, and adjusts the load compartment by measuring a reference square prism arranged on the top of the load compartment and two reference square prisms at the bottom of the load compartment Attitude, horizontal and pitch direction accuracy is measured by measuring the angle of the two surfaces of a reference square prism on the top of the load compartment, and the roll direction accuracy is measured by measuring the distance from the two reference square prism mirrors at the bottom of the load compartment to the walking path surface of the sampling rack;

[0050] The principle of load cabin attitude accuracy measure...

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Abstract

The invention discloses an antenna posture precision measurement system. The system comprises a to-be-measured antenna array, a sampling rack, a joint arm, a data collection and calculation system anda cable component, wherein the joint arm is arranged between the sampling rack and the antenna array, and performs data communication with the data collection and calculation system through the cablecomponent, and is used for collecting the distance between a to-be-measured point on the to-be-measured antenna array and the travelling plane of the sampling rack; the data collection and calculation system is used for receiving coordinate values of an arbitrary point in the measurement space collected by the joint arm in real time, calculating relative coordinate values of the arbitrary point by taking coordinates of the original point of the joint arm equipment as datum, and fitting coordinates of multiple points to obtain required geometrical elements, and calculating the position relationship among the geometrical elements according to the fit geometrical elements so as to acquire the posture precision of the to-be-measured antenna array.

Description

technical field [0001] The invention relates to the technical field of mobile parallel testing, and more particularly relates to an antenna attitude accuracy measurement system and a measurement method. Background technique [0002] During the satellite antenna darkroom test, the position accuracy relationship between the antenna array and the probe running surface of the test sampling rack is very important. At present, the relevant units use a mechanical dial indicator to fix the position of the probe on the sampling rack, and use the walking path of the sampling rack to , continuously use the dial gauge stylus to touch the antenna front to measure the data, and finally adjust the attitude of the antenna front according to the measurement data. Since the moving process of the sampling rack is very slow, the dial gauge needs to pull the stylus back when moving. , otherwise it will scratch the front surface, resulting in time-consuming and labor-intensive measurement process...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01C1/00
CPCG01C1/00
Inventor 姜子龙沈晓飞潘占陈浩刘莎莎张思敏朱艳萍杨露
Owner CHINA ELECTRONIC TECH GRP CORP NO 38 RES INST