To improve temperature accuracy by infrared thermal technique in the surface temperature of spontaneous combustion coal waste piles,an experiment is designed based on two major factors,distance and wind speed,to detect surface temperature.In this article,the effect of one single factor distance or wind speed is respectively analyzed and a temperature compensation mathematical model has been set up based on experimental data,The result affected by combined factors has been studied and experimental data has been quantitatively analyzed by double-factor analysis of variance and correlation analysis.The results show that both factors have significant effect on the temperature with significant level α =0.01.The correlation index between distance and temperature or wind and temperature is-0.923and-0.150 respectively.There is an inverse correlation while distance has a strong inverse correlation with the temperature.The conclusion is significant for monitoring the real model of surface temperature and improving temperature accuracy.
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