The temperature is one of the most important physical properties in nature.In order to realize accurate measurement of the temperature of low-middle temperature objects(50~400 ℃),a system of dual waveband colorimetric temperature measurement is established with which the emissivity of the measured target is not needed to be accurately known.Firstly,based on the dual waveband colorimetric thermometry,this system needs to choose the devices,and then the collected data are used to fit curve or experimental devices are calibrated by RE-SOFT.After the devices are calibrated,the blackbody with given temperature′s(50~400 ℃)is measured as a reference.By comparing the set temperature with the measured data,the cause of errors is studied and analyzed.Experimental results indicate that this experiment system is feasible and the accuracy is 5 ℃ when calibrated confidence is 0.95.It can satisfy the accurate measurement requirement for low-middle temperature′s objects.
参考文献
相似文献
引证文献
引用本文
李云红,王瑞华,李禹萱.双波段比色测温技术及实验测试[J].激光与红外,2013,43(1):71~75 LI Yun-hong, WANG Rui-hua, LI Yu-xuan. Dual waveband colorimetric temperature measurement technology and experiment[J]. LASER & INFRARED,2013,43(1):71~75