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Equipment for testing low-temperature target detection capability of infrared camera under deep space background

An infrared camera and target detection technology, which is used in measurement devices, optical radiation measurement, radiation pyrometry, etc. Effect

Active Publication Date: 2020-07-03
SHANGHAI AEROSPACE CONTROL TECH INST
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] Photoelectric imaging and target recognition technologies are widely used in the aerospace field, usually using visible light. Visible light images have the advantages of high resolution and long detection distance, but are limited by lighting conditions and cannot be imaged in non-illuminated areas.

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  • Equipment for testing low-temperature target detection capability of infrared camera under deep space background

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Embodiment Construction

[0023] The present invention will be further elaborated below in conjunction with embodiment.

[0024] The invention provides a device for testing the ability of an infrared camera to detect a low-temperature target under the background of deep space. It is mainly used for ground testing of the dynamic range of spaceborne infrared cameras, and is an important supporting equipment for Mars exploration. Such as figure 1 As shown, the equipment for testing the ability of infrared cameras to detect low-temperature targets includes an adjustment frame 1, a cold screen 4, a target black body 7, a background black body 8, a heating plate 9, a thermal switch 10, a first refrigerator 11, and a second refrigerator 12 , molecular pump unit 13, first compressor 14, chiller unit 15, second compressor 16, helium gas bottle 17, support frame 18, temperature controller 19 and linear power supply 20; wherein, support frame 18 is placed horizontally; 1 and the cold shield 4 are installed on t...

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Abstract

The invention relates to equipment for testing the low-temperature target detection capability of an infrared camera under a deep space background, and belongs to the technical field of infrared camera detection capability testing. The device comprises an adjusting frame, a cold shield, a target black body, a background black body, a heating piece, a thermal switch, a first refrigerator, a secondrefrigerator, a molecular pump unit, a first compressor, a water chilling unit, a second compressor, a helium cylinder, a supporting frame, a temperature controller and a linear power supply, whereinthe device is used for performing ground testing of the dynamic range of a satellite-borne infrared camera and is important corollary equipment for Mars detection. The device is advantaged in that thetemperature of the background black body is controlled to be less than 40K, the temperature range of the target black body is controlled to be changed from 40K to 420K, temperature control precisionis + / -0.1 K, and temperatures of two black bodies are independently controllable; temperature change of an ultralow-temperature target is simulated, and the detection capability of the infrared cameraon the ultralow-temperature target is realized.

Description

technical field [0001] The invention belongs to, relates to equipment for testing the detection ability of infrared cameras to low-temperature targets under the background of deep space, and belongs to the technical field of detection ability testing of infrared cameras. Background technique [0002] Photoelectric imaging and target recognition technologies are widely used in the aerospace field, and are usually implemented using visible light. Visible light images have the advantages of high resolution and long detection distances, but are limited by lighting conditions and cannot be imaged in non-illuminated areas. Infrared imaging is thermal imaging in principle. It detects the temperature change of the target and is not limited by light conditions. It can be imaged all day long and has great advantages. In the early days, the infrared detector technology was relatively backward and the resolution was not high. The low responsivity limits its widespread use. In recent yea...

Claims

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Application Information

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IPC IPC(8): G01J5/00G01J5/02G01J5/52
CPCG01J5/00G01J5/0205G01J2005/0077G01J5/53
Inventor 何峰郑循江朱庆华姜丽辉肖东东左乐曹卫卫叶志龙黄浩王峰
Owner SHANGHAI AEROSPACE CONTROL TECH INST
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