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Attitude adjustment method and hydraulic system for antenna testing

A technology of hydraulic system and adjustment method, which is applied in the directions of antenna, antenna radiation pattern, and antenna components, etc., can solve the problems of time-consuming antenna adjustment, poor adjustment accuracy, and high labor cost consumption.

Active Publication Date: 2019-10-08
BEIJING INST OF SPACE LAUNCH TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Using this kind of purely mechanical equipment, the antenna adjustment takes a long time, generally takes about a day; the adjustment accuracy of the final attitude adjustment is poor, relying too much on the experience of the operator, requiring multiple operators to work together, and consumes a lot of labor costs

Method used

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  • Attitude adjustment method and hydraulic system for antenna testing
  • Attitude adjustment method and hydraulic system for antenna testing
  • Attitude adjustment method and hydraulic system for antenna testing

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0067] An attitude adjustment hydraulic system for antenna testing, including a platform hydraulic subsystem, a slewing platform, an erecting hydraulic subsystem, a level, a controller, and a range finder;

[0068] The slewing platform is installed on the platform hydraulic subsystem, the erecting hydraulic subsystem is installed on the slewing platform for erecting or recovering the antenna under test, and the slewing platform is used to drive the erecting hydraulic The subsystem and the antenna under test rotate in the horizontal direction; the level is used to monitor the hydraulic subsystem of the platform, and the monitoring result is sent to the controller; the controller can receive the monitoring result that the level is used for monitoring , and be able to control the platform hydraulic subsystem and the erecting hydraulic subsystem;

[0069] The rangefinder is used to measure the distance between the antenna under test and the external test reference surface, and sen...

Embodiment 2

[0083] A method for attitude adjustment for antenna testing, using the above-mentioned attitude adjustment hydraulic system for antenna testing, comprising the following steps:

[0084] S1. The controller controls the platform hydraulic subsystem to raise the test platform of the platform hydraulic subsystem until the angles between the length and width directions of the test platform and the horizontal plane are less than or equal to ±1′;

[0085] S2. The controller controls the erecting hydraulic subsystem to erect the antenna under test until the erecting cylinder of the erecting hydraulic subsystem reaches the limit position;

[0086] S3. Using a rangefinder to measure the distance between the antenna under test and the test reference surface, and adjust the slewing platform and the legs of the hydraulic subsystem of the platform according to the measurement result of the distance, so that the antenna under test is parallel to the test reference surface.

[0087] In S1, th...

Embodiment 3

[0114] An attitude adjustment hydraulic system for antenna testing, such as figure 2 , is a schematic diagram of the antenna after adjusting its attitude. During the antenna test, the measured array should be parallel to the reference plane (the array is perpendicular to the ground), and the actual detection method is (A, B, C, D) max-(A, B, C, D) min≤1mm (any point ), and |ZB-ZA|≤1 (ZB: the coordinates of point B in the Z direction, ZA: the coordinates of point A in the Z direction,) (that is, the height difference between the two points AB and the ground), through the reference plane The laser rangefinder measures the relative positions of the four points.

[0115] In order to ensure that the final attitude of the antenna meets the above requirements, the designed hydraulic system can realize the following functions: In order to ensure the stability of the antenna during erection, it is necessary to use the left front outrigger, right front outrigger, left rear outrigger, ...

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Abstract

The invention provides an attitude adjusting method and hydraulic system for antenna testing. The system involves a platform hydraulic subsystem, a rotary platform, an erecting hydraulic subsystem, alevel gauge, a controller and a rangefinder; the rotary platform is installed on the platform hydraulic subsystem, the erecting hydraulic subsystem is installed on the rotary platform and used for erecting or lowering a tested antenna, and the rotary platform is used for driving the erecting hydraulic subsystem and the tested antenna to rotate in the horizontal direction; the level gauge is used for monitoring the platform hydraulic subsystem; the controller receives a monitoring result of the level gauge for monitoring and can control the platform hydraulic subsystem and the erecting hydraulic subsystem; and the rangefinder is used for measuring the distance between the tested antenna and an external test reference surface, and sending the measured distance to the controller, and the controller controls the platform hydraulic subsystem to adjust the distance between the tested antenna and the external test reference surface according to an external target requirement and the measureddistance. The system has the advantages of being high in adjusting precision and high in adjusting speed.

Description

technical field [0001] The invention relates to an attitude adjustment method and a hydraulic system for antenna testing, belonging to the technical field of hydraulic transmission and direction control. Background technique [0002] After the large-scale array antenna is assembled, it needs to enter the dark room for a month of various tests. Before the test, the antenna should generally be turned vertically by 90°, and it is necessary to ensure a high degree of parallelism between the antenna test array and the test reference plane to ensure the accuracy of the test data. [0003] At present, the commonly used test method is to place the antenna under test horizontally on the test platform. When the test platform enters the darkroom, first use the spiral legs (3 or 4) to support the platform and basically level the platform, and then shake the ball The screw mechanism turns the antenna from a horizontal state to a vertical state, and finally manually adjusts the screw leg...

Claims

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Application Information

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IPC IPC(8): F15B11/16H01Q1/12H01Q3/08G01R29/10
CPCF15B11/16G01R29/10H01Q1/1207H01Q3/08
Inventor 周黎李敏谢文建韩洋卢绍伟高亚东郭初生赵黎明李帅冯世泽何刘宇曾毅虞军胜
Owner BEIJING INST OF SPACE LAUNCH TECH
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