本文简要地叙述了AGA782型红外热象仪的工作原理、结构特点和主要性能。论述了我们开发的计算机软件——“数据温度场”,它可以同时将每场热象的8192个温度数值打印出来。论文还从仪器使用角度介绍了我们应用这台热象仪测温的几个实例:某钢厂钢锭轧制过程中动态温度场的测定;热管表面温度场的测定;某电厂发电机定子铁芯动态温度场的测定。其实际测量和数据处理结果都是比较满意的,并且得出了一些具有实用价值的结论。 This article briefly describes the AGA782 infrared thermal imager working principle, structural characteristics and main performance. Discussed the computer software we developed - Data Temperature Field, which prints out 8192 temperature values ​​for each field at the same time. The paper also introduces several examples of temperature measurement using this thermal imager from the perspective of instrument usage: the determination of the dynamic temperature field in the rolling process of a steel ingot; the determination of the temperature field of the heat pipe surface; the stator core Determination of dynamic temperature field. The actual measurement and data processing results are more satisfactory, and come to some conclusions of practical value.