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Infrared temperature measuring device and method under the condition that the measured surface is out of focus

An infrared temperature measurement and infrared technology, applied in the field of infrared temperature measurement, can solve problems such as inability to measure temperature and out of focus

Active Publication Date: 2017-11-14
ELECTRIC POWER RES INST OF GUANGDONG POWER GRID +1
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

However, under many measurement conditions, the measured surface is not perpendicular to the main axis of the lens, causing many or all positions on the measured surface to be out of focus. In this case, the existing common measurement methods have been unable to measure the temperature

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  • Infrared temperature measuring device and method under the condition that the measured surface is out of focus
  • Infrared temperature measuring device and method under the condition that the measured surface is out of focus
  • Infrared temperature measuring device and method under the condition that the measured surface is out of focus

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Embodiment Construction

[0049] specific implementation plan

[0050] see figure 1An embodiment of the infrared temperature measuring device under the condition that the measured surface is out of focus according to the present invention includes:

[0051] An infrared lens (1) is used to collect infrared rays in the field of view, and its lens material has a relatively high transmittance within the spectral response range of the infrared CCD camera (3) below;

[0052] An infrared CCD camera (3), used for collecting the image of infrared lens imaging;

[0053] A filter (2), located between the infrared lens (1) and the photosensitive device of the infrared CCD camera (3), is used to filter stray light in other bands, and its central wavelength is within the spectral response range of the infrared CCD camera (3) Inside;

[0054] A computer (4), connected to the infrared CCD camera (3) through a data line, is used to process image data to obtain a temperature field.

[0055] see figure 2 and imag...

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Abstract

An infrared temperature measuring device under the condition that the measured surface is out of focus, comprising: an infrared lens (1), used to collect infrared rays in the field of view, the lens material of which is within the spectral response range of the infrared CCD camera (3) below There is a high transmittance; an infrared CCD camera (3), used to collect images imaged by the infrared lens; a filter (2), located between the infrared lens (1) and the photosensitive device of the infrared CCD camera (3), It is used to filter stray light in other bands, and its central wavelength is within the spectral response range of the infrared CCD camera (3); a computer (4), connected to the infrared CCD camera (3) through a data line, is used to process image data to obtain a temperature field . The invention also relates to an infrared temperature measurement method under the condition that the measured surface is out of focus by using the above device. By adopting the device and method of the present invention, even if the surface to be measured is not perpendicular to the main axis of the lens, causing many or all positions on the surface to be measured to be out of focus, temperature measurement can be carried out effectively.

Description

technical field [0001] The invention relates to an infrared temperature measuring device, in particular to an infrared temperature measuring device under the condition that the measured surface is out of focus. The invention also relates to an infrared temperature measurement method using the device under the condition that the measured surface is out of focus. Background technique [0002] The detection and control of temperature is highly valued in power system, petrochemical, metallurgy and other industries. It is related to the safety of the system, the quality of the product and the efficiency of production. Infrared temperature measurement technology has the advantages of theoretically no upper and lower limits on the temperature measurement range, no change in the temperature of the measured object, short temperature measurement response time, and the ability to measure the temperature distribution on the surface of the material. and energy conservation play an impor...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01J5/00
Inventor 钟万里王伟李慎兰许传龙张彪丁辉
Owner ELECTRIC POWER RES INST OF GUANGDONG POWER GRID
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