Based on the theory of infrared radiation and the principles of temperature measurement of infrared thermography, the calculating formulas of the influencing factors of the relative temperature difference was deduced. The influence of the environment temperature, the emissivity of target surface and the working wave band of thermography on the relative temperature difference was analysized. It is shown that the environment temperature has a little effects on the relative temperature difference,the emissivity has an effect on it to a degree,and the long wave band thermography has less effects on the relative temperature difference than the short wave band.
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杨宝东,杨立.电气设备红外诊断相对温差判别法影响因素分析[J].激光与红外,2007,37(4):341~343 YANG Bao-dong, YANG Li. Influence Factors of Relative Temperature Difference Determination Method of Infrared Diagnosis for Electric Equipment[J]. LASER & INFRARED,2007,37(4):341~343