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Test system for target radiation characteristic of W-waveband radiometer

A technology for testing system and radiation characteristics, which is applied in photometry, optical radiation measurement, and electromagnetic field characteristics using electric radiation detectors. Achieve the effects of adjustable test points, simplified test process, and short test time

Inactive Publication Date: 2019-02-01
BEIJING INST OF REMOTE SENSING EQUIP
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  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to provide a test system for the target radiation characteristics of W-band radiometers, which solves the problems of high temperature consistency requirements between radiometers, complicated test process, long test time and low efficiency in traditional test methods

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  • Test system for target radiation characteristic of W-waveband radiometer

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Embodiment Construction

[0011] A test system for the radiation characteristics of a W-band radiometer target, comprising: an AC power supply 1, a DC power supply 2, a control computer 3, a turntable control unit 5, a two-dimensional turntable 6, a reflector antenna 7 and a millimeter wave radiometer 8, Wherein, the display and control module 4 runs on the control computer 3 . The functions of the display and control module 4 are: to control the orientation of the two-dimensional turntable 6, perform two-dimensional scanning, and complete image acquisition and storage.

[0012] The output interface of the AC power supply 1 is respectively connected with the input interfaces of the DC power supply 2, the control computer 3, the turntable control unit 5, and the two-dimensional turntable 6 to provide the 220V AC power supply 1 required by each device; the output interface of the DC power supply 2 is connected to the millimeter wave radiation The input interface of meter 8 is connected; the output interf...

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Abstract

The invention discloses a test system for target radiation characteristic of a W-waveband radiometer. The test system comprises an alternating current power supply (1), a direct current power supply (2), a control computer (3), a rotary table control unit (5), a two-dimensional rotary table (6), a reflector antenna (7) and a millimeter wave radiometer (8), wherein a display control module (4) runson the control computer (3). When the test system works, the alternating current power supply (1) supplies power for each device; and a normal testing process is carried out after the working state of the millimeter wave radiometer (8) is stable. The display control module (4) receives a voltage signal collected by the wave radiometer of the point, and packs and stores the collected voltage signal and the space azimuth coordinates of the rotary table into a database; all the two-dimensional image databases needing to be collected are established and stored in the control computer (3), and meanwhile, image display in the display control module (4) is performed. The test system has the advantages of being simple in equipment, simple and convenient to operate, low in cost and the like.

Description

technical field [0001] The invention relates to a test system, in particular to a test system for the target radiation characteristics of a W-band radiometer. Background technique [0002] A single radiometer can only feed back temperature signals to pointing points. If a radiometer is to be used to image in a two-dimensional plane, it is currently completed using a radiometer array composed of multiple radiometers and a motion servo mechanism. The number of radiometers determines a The resolution of one dimension, the motion amplitude of the motion servo determines another dimension. This method requires more radiation and a special motion mechanism, which is costly, and there is temperature drift between multi-radiometers, and the calibration is complicated, and the imaging range and resolution are difficult to change. This test method has problems such as complex test equipment and test environment, high requirements for radiation source temperature consistency, long tes...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01J1/42G01J1/02G01J1/04G01R29/08G01R29/12
CPCG01J1/0228G01J1/0403G01J1/42G01R29/08G01R29/12
Inventor 吴海涵赵崇辉崔广斌刘一文
Owner BEIJING INST OF REMOTE SENSING EQUIP