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Device for testing performance of high-sensitivity infrared remote sensors

A high-sensitivity, testing device technology, applied in the direction of instruments, signal transmission systems, non-electrical signal transmission systems, etc., can solve the problem that the accuracy of temperature measurement and temperature control cannot meet the testing requirements of infrared remote sensors, and achieve the reduction of atmospheric heat transfer and disturbance Interference, temperature control and temperature measurement with high precision and great adaptability

Active Publication Date: 2017-05-31
BEIJING RES INST OF SPATIAL MECHANICAL & ELECTRICAL TECH
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Problems solved by technology

[0003] The technical problem to be solved by the present invention is: to overcome the deficiencies of the prior art, the temperature measurement and temperature control accuracy and the non-uniformity index of the existing black body products cannot meet the test requirements of the NETD to the infrared remote sensor of the order of 0.01 °C or less, the present invention provides A high-sensitivity infrared remote sensor performance test device solves the problems of high-precision temperature control of the test radiation source and high-precision uniform emission of infrared radiation, and has the advantage of being used for testing and evaluating infrared remote sensors, and its test results are more scientific and accurate

Method used

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  • Device for testing performance of high-sensitivity infrared remote sensors

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Embodiment Construction

[0016] Attached below figure 1 The present invention is described in further detail with specific examples.

[0017] A high-sensitivity infrared remote sensor performance test device can be divided into several parts: temperature measurement and temperature control module, radiation source module and related auxiliary equipment. The specific composition and requirements of each part are as follows, as follows: figure 1 Shown:

[0018] The radiation source module is composed of a liquid tank 1 , a liquid working medium 2 and a radiation source 3 . The liquid tank 1 is used to hold the liquid working medium 2, the radiation source 3 is fixed in the liquid tank 1, and there are heaters on the bottom and surroundings of the liquid tank 1 for heating (or cooling) the liquid working medium 2. The radiation source 3 is a uniform copper plate or other metal plate or alloy plate with a specific heat capacity ≥ 400J / (kg·℃). The caliber of source 3 is designed according to the entranc...

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Abstract

The invention provides a device for testing performance of high-sensitivity infrared remote sensors. The performance index that the heterogeneity of an infrared calibration radiation source is superior to 0.005 DEG C and the stability of accurately-measured temperature is superior to 0.01 DEG C is realized through combination of a liquid tank radiation source with extremely high temperature uniformity and extremely high stability, a high-accuracy electrical bridge and a standard platinum resistance temperature gauge. Compared with the existing blackbody products, the radiation uniformity and the stability are better; the influence of various adverse factors on the accuracy of test results in the testing process can be reduced; the requirements on performance test of various remote sensors with increasingly high sensitivity can be better met.

Description

technical field [0001] The invention relates to an infrared remote sensor performance testing device. Background technique [0002] Infrared remote sensor performance testing requires corresponding standard radiation sources to provide accurate and known infrared radiation test signals. At present, various blackbody radiation source products are usually used for infrared remote sensor testing. Blackbody radiation source products are mainly composed of uniformly blackened radiation surfaces, heating and temperature control modules, etc. Due to the limited accuracy of the temperature measuring components used and the interference of atmospheric convection heat transfer And other factors exist, the accuracy of temperature measurement and temperature control is on the order of 0.01°C, and the temperature non-uniformity is about 0.1°C. For remote sensors with high temperature sensitivity (the index used to evaluate the temperature sensitivity of remote sensors can be expressed b...

Claims

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Application Information

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IPC IPC(8): G08C25/00G08C23/04
CPCG08C23/04G08C25/00
Inventor 龙亮吴立民张丽莎阮宁娟
Owner BEIJING RES INST OF SPATIAL MECHANICAL & ELECTRICAL TECH
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