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Single-blackbody temperature-controlled MRTD (Minimum Resolvable Temperature Difference) field online automatic detection device and method for thermal imager

A technology of automatic detection device and thermal imager, which is applied in the direction of measuring device, radiation pyrometry, instrument, etc., to reduce the influence of calculation results, improve control accuracy and reduce the effect of influence

Inactive Publication Date: 2012-07-18
ORDNANCE TECH RES INST OF THE GENERAL ARMAMENT DEPT PLA
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Problems solved by technology

[0007] The second purpose of the present invention is to provide a thermal imager single-black temperature-controlled MRTD field online automatic detection method to solve the problem of MRTD detection of infrared thermal imaging equipment in the field environment

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  • Single-blackbody temperature-controlled MRTD (Minimum Resolvable Temperature Difference) field online automatic detection device and method for thermal imager
  • Single-blackbody temperature-controlled MRTD (Minimum Resolvable Temperature Difference) field online automatic detection device and method for thermal imager
  • Single-blackbody temperature-controlled MRTD (Minimum Resolvable Temperature Difference) field online automatic detection device and method for thermal imager

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Embodiment Construction

[0034] The automatic detection device of the present invention includes a single black body temperature difference generator for generating the infrared radiation temperature difference between the simulated target and the environment, and is used to receive the infrared radiation temperature difference generated by the single black body temperature difference generator to form an infinite target for inspection The infrared collimating optical system received by the thermal imager is used to collect the single-frame or real-time imaging results of the thermal imager under inspection and transmit the image acquisition system to the computer control processing system, as well as the thermal imaging of the input under inspection A microcomputer control processing system for analyzing and calculating the single-frame or real-time imaging results of the instrument. The single black body temperature difference generator and the image acquisition system are respectively connected with ...

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Abstract

The invention relates to a single-blackbody temperature-controlled MRTD (Minimum Resolvable Temperature Difference) field online automatic detection device and a method for a thermal imager. The automatic detection device comprises a single-blackbody temperature difference generator, an infrared collimating optical system, an image acquisition system and a microcomputer control and processing system. The detection method comprises the following steps that: the temperature of a surface source blackbody is firstly adjusted, so that the required infrared radiation temperature difference can be generated by a 4-bar target and the environment; the infrared radiation temperature difference is collimated by using a Cassegrain collimator tube and then enters the objective lens of a detected thermal imager; and imaged results are acquired by an image acquisition card and then are inputted to the microcomputer control and processing system, the calculation processing is carried out, and the calculated MRTD result is displayed, so that the automatic detection on the MRTD parameters of the detected thermal imager is achieved. The detection device provided by the invention has the advantages of small volume and little weight, guaranteed accuracy, simplicity and convenience in operation, and high degree of automation, and is applicable to the field online detection on the MRTD of infrared thermal imaging equipment.

Description

Technical field [0001] The invention relates to a photoelectric instrument measuring equipment, in particular to a thermal imager single black body temperature control MRTD field online automatic detection device and detection method. Background technique [0002] In recent years, infrared thermal imaging technology has developed rapidly, and infrared thermal imaging equipment has been used in almost every field. Infrared thermal imaging equipment has high technical content, precise structure and complex circuit system. Compared with general electromechanical instruments and equipment due to its structural process and technical characteristics, it has a higher failure rate objectively, so the performance parameters of infrared thermal imaging equipment Detection is particularly important. [0003] An important parameter for evaluating the performance of thermal imaging equipment is the minimum resolvable temperature difference (abbreviated as "MRTD"). MRTD is defined as: for the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01J5/00
Inventor 陈志斌刘羽翔薛明晰刘宝华侯章亚
Owner ORDNANCE TECH RES INST OF THE GENERAL ARMAMENT DEPT PLA
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