Research on the Technique of Accurately Measuring Temperature with Infrared Thermal Imagers
In order to measure temperature accurately the authors deduced a general computing formula for the measurement of surface temperature with an infrared thermal imager according to the principles of thermal radiation The authors analyzed the conditions for an accurate measurement of temperature with an infrared thermal imager and emissivity s influence on accurate measurement of temperature The authors also studied the influence of the environment atmosphere and the thermal imager on the accuracy of temperature measurement In addition the authors drew a theoretical curves of various factors influencing the accuracy of temperature measurement The result of the study reveals that when the emissivity is 0.7 the actual temperature is 50 ℃ and the deflection of emissivity is 0.1 then for the 3~5μm thermal imager the deviation of measurement from the actual temperature is 0.76～ 0.89 ℃ and for the 8~14μm thermal imager the deviation is 1.561.87 ℃ The result of the study is of practical significance for improving the accuracy of the measurement of temperature and surface emissivity.
infrared thermal imager measurement of temperature error analysis emissivity
Yunhong Li Xiaogang Sun Yannian Wang
Harbin Institute of Technology,Harbin 150001,China Xian Polytechnic University,Xian 710048,China Harbin Institute of Technology,Harbin 150001,China Xian Polytechnic University,Xian 710048,China
国际会议
2009 9th International Conference on Electronic Measurement & Instruments(第九届电子测量与仪器国际会议 ICEMI2009)
北京
英文
3801-3806
2009-08-16（万方平台首次上网日期，不代表论文的发表时间）