Measurement technology of 2-dimensional flame imaging temperature based on infrared radiation

Pan Pei; Xiaojian Hao; Haoliang Sun

doi:10.1117/12.2648041

23 January 2023 Measurement technology of 2-dimensional flame imaging temperature based on infrared radiation

Pan Pei, Xiaojian Hao, Haoliang Sun

Proceedings Volume 12557, AOPC 2022: Optical Sensing, Imaging, and Display Technology; 125570P (2023) https://doi.org/10.1117/12.2648041
Event: Applied Optics and Photonics China 2022 (AOPC2022), 2022, Beijing, China

Abstract

To measure flame temperatures in various complex and extreme environments, we propose a two-dimensional flame temperature measurement method based on infrared radiation. In the laboratory environment, the acetylene-oxygen premixed flame was generated by a simulated flame generation device, the two-dimensional infrared image of the flame was obtained by using a cooled infrared thermal imager, and the emissivity of the acetylene-oxygen flame was obtained by combining a colorimetric pyrometer, the atmospheric transmittance of the site is measured by using an atmospheric correction factor, a flame radiation decay transmission model was established, and the temperature calibration curve of the infrared thermal imager was combined to finally obtain two-dimensional flame temperature data. Through the temperature measurement uncertainty analysis, the temperature measurement error of the system is within 5%. The experimental results validate the feasibility of the method.

Citation Download Citation

Pan Pei, Xiaojian Hao, and Haoliang Sun "Measurement technology of 2-dimensional flame imaging temperature based on infrared radiation", Proc. SPIE 12557, AOPC 2022: Optical Sensing, Imaging, and Display Technology, 125570P (23 January 2023); https://doi.org/10.1117/12.2648041

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