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Infrared temperature measurement result correction method and system

A technology of infrared temperature measurement and correction method, which is applied in the field of infrared temperature measurement, can solve the problems of reduced accuracy of infrared temperature measurement results, low accuracy of temperature measurement results, and no consideration of ambient temperature, etc., achieving simple implementation, good versatility, easy-to-use effects

Active Publication Date: 2022-04-29
WUHAN GUIDE SENSMART TECH CO LTD
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  • Application Information

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Problems solved by technology

[0003] Among them, the influence of the distance factor on the temperature measurement accuracy is particularly prominent. Generally speaking, the accuracy of infrared temperature measurement results gradually decreases with the increase of distance
In the prior art, the temperature measurement accuracy of the infrared temperature measurement equipment at different distances can meet the requirements through the correction of the distance, but the above-mentioned schemes do not consider the ambient temperature (that is, the ambient temperature where the infrared temperature measurement equipment is located) , therefore, the above-mentioned method of improving the accuracy of the temperature measurement results only through distance correction without considering the influence of the ambient temperature still has a large deviation, resulting in the final temperature measurement result accuracy is still not high

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  • Infrared temperature measurement result correction method and system
  • Infrared temperature measurement result correction method and system
  • Infrared temperature measurement result correction method and system

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Embodiment 1

[0040] This embodiment provides a method for correcting infrared temperature measurement results, which includes the following steps:

[0041] S1. Measure the temperature of the black body through infrared temperature measuring equipment (such as an infrared thermal imager, etc.) to obtain the temperature of the black body;

[0042] In this embodiment, the step S1 specifically includes the following steps:

[0043] S11. Place N (such as 4) infrared temperature measuring devices under the same ambient temperature condition (such as a room with an ambient temperature of 23°C) to keep warm for a predetermined time, such as 1 hour, to eliminate the differences between the infrared temperature measuring devices themselves. Errors caused by different ambient temperatures;

[0044] S12, prepare M black bodies, and set the black body temperature of each black body, so that the black body temperature of each black body is all different, such as, the black body temperature of each blac...

Embodiment 2

[0080] This embodiment provides a correction system for infrared temperature measurement results used in the correction method described in Embodiment 1, such as figure 2 shown, which includes:

[0081] Distance correction parameter acquisition unit 1, which is used to acquire the current temperature T′ of the temperature measurement object O after correction according to formula (2) o ;

[0082] Environmental temperature coefficient acquisition unit 2, which is used to obtain the current environmental temperature T according to formula (3) or formula (4) 环 The ring temperature coefficient K under amb ;

[0083] Correction unit 3, which is used to adjust the current temperature T of the temperature measurement object O according to the formula (1) o Make corrections to obtain the temperature measurement object O at the current ambient temperature T 环 The correction temperature under T obj .

[0084] In summary, the present invention uses tools such as MATLAB to fit bla...

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Abstract

The invention discloses an infrared temperature measurement result correction method and system, and the method comprises the following steps: obtaining the current temperature To of a temperature measurement object O under the current environment temperature T environment and the current temperature measurement distance dis, and correcting the current temperature To of the temperature measurement object O according to a formula, so as to obtain the corrected temperature of the temperature measurement object O under the current environment temperature T environment. According to the invention, the temperature measurement result can be corrected according to the distance correction parameter and the environment temperature coefficient, so that the temperature measurement precision of the infrared temperature measurement equipment is greatly improved.

Description

technical field [0001] The invention relates to the field of infrared temperature measurement, in particular to a method and system for correcting infrared temperature measurement results. Background technique [0002] At present, infrared temperature measurement equipment has been widely used in many fields, and the accuracy of infrared temperature measurement results is affected by many external factors, such as emissivity, ambient temperature, atmospheric attenuation, and the distance between the measured object and the temperature measurement equipment. [0003] Among them, the influence of the distance factor on the temperature measurement accuracy is particularly prominent. Generally speaking, the accuracy of infrared temperature measurement results gradually decreases with the increase of distance. In the prior art, the temperature measurement accuracy of the infrared temperature measurement equipment at different distances can meet the requirements through the correc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01J5/80
CPCG01J5/00
Inventor 黄晟潘想崔昌浩王鹏周汉林
Owner WUHAN GUIDE SENSMART TECH CO LTD
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