Infrared thermal imaging high-precision temperature measurement technology

Heyang Cao; Guohua Gu; Xiubao Sui; Qian Chen

doi:10.1117/12.2605102

24 November 2021 Infrared thermal imaging high-precision temperature measurement technology

Heyang Cao, Guohua Gu, Xiubao Sui, Qian Chen

Proceedings Volume 12061, AOPC 2021: Infrared Device and Infrared Technology; 120610S (2021) https://doi.org/10.1117/12.2605102
Event: Applied Optics and Photonics China 2021, 2021, Beijing, China

Abstract

Infrared non-contact testing has great prospects under epidemic prevention and control. The current infrared thermometer on the market generally has low-temperature measurement accuracy and weak anti-interference. This paper designs and implements an infrared thermography thermometer, which can detect the body temperature of a wide range of people at the same time, quickly find out the abnormal temperature of people, and issue alarms through the implementation of powerful front-end processing and back-end conversion algorithms, outputting high-quality infrared thermography video with full-screen detection, non-contact, fast, and intuitive characteristics. The thermometer implemented in this paper is as high as ±0.2℃ in temperature measurement accuracy, optimizes the correspondence between grayscale value and temperature, and designs the temperature control system to make corresponding compensation for ambient temperature and testing distance. The experiment proves that the pyrometer designed in this paper has strong anti-interference and high accuracy, and can be applied to various application scenarios.

Citation Download Citation

Heyang Cao, Guohua Gu, Xiubao Sui, and Qian Chen "Infrared thermal imaging high-precision temperature measurement technology", Proc. SPIE 12061, AOPC 2021: Infrared Device and Infrared Technology, 120610S (24 November 2021); https://doi.org/10.1117/12.2605102

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