计量学报2024，Vol.45Issue(2)：164-169,6.DOI:10.3969/j.issn.1000-1158.2024.02.04
基于发射率修正模型的红外测温补偿方法
An Infrared Temperature Measurement Compensation Method Based on Emissivity Correction Model
摘要
Abstract
At present,the infrared temperature measurement method is affected by the surface emissivity of the measured object,which makes the measurement results have errors.By analyzing the influence of surface roughness on surface infrared emissivity,an infrared temperature compensation method based on emissivity correction model is proposed.Firstly,an infrared temperature compensation algorithm for surface roughness correction is established based on the principle of infrared temperature measurement.Secondly,in order to determine the surface emissivity correction in the infrared temperature compensation method,a rough surface emissivity correction model is established by two-scale rough surface.Finally,in order to verify the feasibility of the proposed infrared temperature measurement compensation method,the measurement results before and after the compensation algorithm are compared in the infrared temperature measurement experiment of friction stir welding seam.The maximum error of infrared temperature measurement is reduced from 9.64 ℃ to 2.97 ℃,and the average measurement error is reduced from 3.57 ℃ to 0.71 ℃,indicating that the proposed infrared compensation temperature measurement method can improve the accuracy of infrared temperature measurement.关键词
红外测温/发射率修正/表面粗糙度/双尺度/搅拌摩擦焊焊缝Key words
infrared temperature measurement/emissivity correction/surface roughness/two-scale/friction stir welding seam分类
通用工业技术引用本文复制引用
米松涛,张玉存,付献斌,颜方,孔涛..基于发射率修正模型的红外测温补偿方法[J].计量学报,2024,45(2):164-169,6.基金项目
中央政府引导地方科学技术发展基金(216Z801G,226Z1806G) （216Z801G,226Z1806G）
河北省自然科学基金(E2022415005,E20211415003) （E2022415005,E20211415003）
