用红外热像仪测量建筑物表面温度的实验研究
Research on surface temperature of building envelope measured by thermal infrared imager
摘要：
指出建筑工程中固体表面温度分布特点及常用的以点代面测量平均温度方法的不足，利用围护结构表面的红外热谱图，分析了特征点的选择及区域划分给表面平均温度测量带来的误差。研究表明，红外热谱图可以正确地反映建筑结构表面的温度场分布，解决了固体表面平均温度测量的难题。点温法与红外热像仪结合，可以有效地提高红外热像仪的测温精度，值得广泛推广。
Abstract：
Points out the shortage of “point for area” in commonly used average temperature measurement methods and the characteristics of solid surface temperature distribution in buildings. By using the thermal infrared spectrum of the building envelope surfaces, analyses the errors resulted from selection of the characteristic points and the area division. The research indicates that the thermal infrared spectrum correctly reflects the temperature distribution, solving the puzzle of the average temperature measurement on solid surfaces. Combining application of the point temperature method and thermal infrared imager can realize higher precision in the temperature measurement and deserves to be recommended.
Keywords:envelope, surface temperature, temperature measurement, thermal infrared imager