Infrared radiometer

A technology of infrared radiation and infrared detectors, applied in the field of infrared radiometers, can solve the problems of low measurement accuracy of infrared radiometers, achieve the effects of improving signal-to-noise ratio, improving temperature resolution, and eliminating errors

Active Publication Date: 2013-01-30
CHINA NORTH IND NO 205 RES INST
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Problems solved by technology

[0004] In the 1980s, the 211 Research Institute of China Ordnance Industry Group introduced the RAD-800 infrared radiometer from the British EALLING company for the measurement of infrared thermal imager test equipment, but the measurement accuracy of the infrared radiometer is low

Method used

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Embodiment Construction

[0020] The present invention will be further described in detail below in conjunction with the accompanying drawings and preferred embodiments.

[0021] as figure 1 As shown, the preferred embodiment of the present invention consists of an optical system 1, a chopper 2, a reference black body 3, a CCD aiming system 4, an optical filter set 5, a limiting diaphragm set 6, an infrared detector 7 and a signal acquisition system containing a computer, The processing and control system consists of 8. The signal collection, processing and control system 8 collects and processes the signals of the CCD aiming system 4 and the infrared detector 7 , and controls the chopper 2 , the reference black body 3 and the filter group 5 .

[0022] according to figure 2 As shown, the optical system 1 of the preferred embodiment of the present invention is composed of multiple lenses to meet higher image quality requirements. The aperture is 100mm, the focal length is 250mm, and the lens material...

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Abstract

The invention discloses an infrared radiometer and belongs to the field of testing of optical metrology. The infrared radiometer is used for measuring radiation temperature of a thermal infrared imager testing device and is mainly characterized in that the infrared radiometer adopts double optical paths, a detector in the infrared radiometer is respectively subjected to the radiation of the thermal infrared imager testing device and the radiation of an internal reference black body of the infrared radiometer, the temperature of the reference black body is controlled by a computer and is kept consistent with the internal temperature and environment temperature of the infrared radiometer, and solid angles formed by the two optical paths and the detector are identical and the two paths coincide through the design of a limiting diaphragm group and confirmation of the installing positions of the limiting diaphragms. The infrared radiometer has miniaturized and intelligentized characteristics and has the advantages of being high in measuring accuracy and wide in application prospect.

Description

technical field [0001] The invention belongs to the field of optical metrology and testing, and relates to an infrared radiometer, in particular to an infrared radiometer for measuring the radiation temperature of infrared thermal imager testing equipment. Background technique [0002] With the development of infrared imaging technology, thermal imaging cameras have been widely used in the military field. Since the 1980s, many domestic scientific research institutes and factories have successively introduced various types of thermal imaging camera testing equipment from the United Kingdom, Israel, the United States, France and other western countries for parameter testing of military infrared thermal imaging cameras. , Performance evaluation. Infrared thermal imager test equipment can be divided into single black body infrared thermal imager test equipment and background temperature controllable infrared thermal imager test equipment. In order to improve the measurement acc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01J5/52G01J5/08
Inventor 胡铁力范纪红马世帮郭宇辛舟
Owner CHINA NORTH IND NO 205 RES INST
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