红外技术2025，Vol.47Issue(12)：1586-1591,6.
红外辐射测温误差修正方法研究
Error Correction for Infrared Radiation Temperature Measurement
摘要
Abstract
Infrared radiation thermometry is a noncontact temperature measurement technique that determines the temperature of a subject or specimen by detecting electromagnetic radiation within a specific spectral band.The signal received by the detector consists not only of the intrinsic radiation emitted by the target but also of the background infrared radiation reflected from the surface of the target surface.Based on Planck's law of blackbody radiation,we conducted a simulation analysis of the coupled influence of a high-temperature background and target emissivity on measurement errors in infrared thermometry.The results show that the combination of low target temperature,low emissivity,and high background radiation constitutes the most error-prone scenario.To address this,we proposed a correction coefficient retrieval strategy based on the Monte Carlo method,which enables unified modeling and compensation of complex background radiation effects.The proposed method is validated through calibration experiments using a standard blackbody furnace and industrial steel billet temperature measurements.The experimental results demonstrate that the approach suppressed the systematic errors induced by background reflection effectively and maintained a relative temperature measurement error within 0.5％.Thus,the proposed method can significantly enhance the accuracy and robustness of infrared thermometry systems under complex thermal radiation conditions.关键词
红外辐射测温/发射率/背景辐射/测温误差/蒙特卡洛方法/修正系数Key words
infrared radiation thermometry/emissivity/background radiation/temperature measurement error/Monte Carlo/correction coefficient分类
能源科技引用本文复制引用
LIU Chunhong,XIONG Danfeng,WU Haibin..红外辐射测温误差修正方法研究[J].红外技术,2025,47(12):1586-1591,6.基金项目
合肥师范学院校级科研重点项目(2023ZD03) （2023ZD03）
光电探测科学与技术安徽高校联合重点实验室(2024KYPT12,2025KYPT44). （2024KYPT12,2025KYPT44）
