Infrared temperature measurement online self-calibrating equipment and method thereof

An infrared temperature measurement and self-calibration technology, applied in the field of infrared temperature measurement devices and their calibration, can solve the problems of waste of resources, low work efficiency, poor device packaging, etc., to improve measurement accuracy, improve work efficiency, and reduce the amount of calculation. Effect

Inactive Publication Date: 2008-05-21
中华人民共和国中山出入境检验检疫局 +1
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Problems solved by technology

However, this device requires the measured object and the constant temperature source to be located on the same data acquisition plane, so the packaging of the whole device is poor, and it is more suitable for indoor fixed installation, and it is difficult to make a portable online calibration infrared thermometer
In addition, using the computer to collect the infrared radiation energy signals of the measured object and the constant tem

Method used

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  • Infrared temperature measurement online self-calibrating equipment and method thereof

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Effect test

Embodiment 1

[0026] As shown in Figure 1, the device consists of a black body 5, a mirror 2, a rotation axis 4, an infrared camera 6, a square lens barrel 3, and a computer 7 assembled in the same housing 1. The infrared camera 6, the built-in black body 5, And the mirror 2 is electrically connected to the computer 7 through a data cable, the rotation axis 4 is located on a frame of the square lens barrel 3, and the rotation axis 4 of the mirror 2 is controlled to rotate through the instructions of the computer 7 to maintain the constant temperature of the black body 5 and process the infrared Camera 6 data.

[0027] The method and process of using the above device to perform infrared temperature measurement online self-calibration is:

[0028] (1) When the infrared temperature measuring device is in the working state of temperature measurement, the position of the reflector 2 just connects the optical path between the measured object and the infrared camera 6 and at the same time blocks the o...

Embodiment 2

[0033] As shown in Figure 2, the device consists of two black bodies 5, 8, two mirrors 2, 9, two rotating shafts 4 and 10, an infrared camera 6, a square lens barrel 3, and a computer 7 assembled in the same housing 1. Among them, two or more built-in black bodies and reflectors can be set, as long as the set temperatures of the two or more built-in black bodies are not equal.

[0034] Blackbody 5 and 8 have different set temperatures. Blackbody 5 is a lower temperature blackbody with a set temperature of 30°C, and blackbody 8 is a higher temperature blackbody with a set temperature of 50°C. The infrared camera 6, the built-in black bodies 5 and 8, and the mirrors 4 and 10 are electrically connected to the computer 7 through a data cable. The rotating shafts 4, 10 are located on the frame of the lens barrel 3, and the mirrors 2 and 9 are controlled by the instructions of the computer 7 The rotating shafts 4 and 10 rotate to maintain the constant temperature of the black bodies 5 a...

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Abstract

The invention provides an online automatic adjusting device with infrared temperature measurement and a method thereof. The device is provided with at least one black body arranged in the same shell as an infrared camera and a computer system and at least one reflector for change of the light path. The online automatic adjusting method comprises the following contents: (1) the user sets spacing interval between two adjustments according to the requirement and controls the reflector to rotate through the instruction of the computer according to the given time, therefore, the light path is changed and the light path between the black body and the infrared camera is communicated; (2) by comparing the real-time temperature of the black body with the measured temperature of the infrared camera, the deviation value is work out and the thermal imaging temperature value of the measured object is adjusted according to the deviation value. The invention is provided with the function of online automatic adjustment and is suitable for manufacturing portable equipments in particular. With the built-in black body, the invention is integrated with the function of measurement and adjustment and is suitable for long-term field measurement.

Description

Technical field [0001] The invention belongs to an infrared temperature measurement device and a verification method thereof, and specifically refers to an infrared temperature measurement online self-calibration device and a method thereof. Background technique [0002] The calibration of the infrared temperature measurement system is very important to the measurement accuracy of the infrared system. The calibration process is to correspond the output voltage of the infrared system to the true radiance or radiant temperature of the measured object. The state of the infrared measurement system is related to many factors, such as the aging of infrared devices, the aging of photoelectric conversion equipment, the noise of electronic circuits, and even changes in ambient temperature and humidity will affect the infrared system. If the state of the infrared system has changed, but the system has changed Without timely calibration, the measured infrared radiation brightness and temper...

Claims

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Application Information

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IPC IPC(8): G01J5/00G01J5/02G01J5/08
Inventor 邓文君王龙贵夏伟邵明周玉山
Owner 中华人民共和国中山出入境检验检疫局
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