This text draws the basic principle of infrared diagnoses based on the primary knowledge of infrared radiation , and analyse the imaging principle of infrared devices ; from the view of infrared diagnostic technology we discuss the fault models and the principium of infrared diagnosis on electrical equipments ; then this paper research the diagnosis of electrical equipments fault by using infrared devices , obtain the hot picture atlas of equipment fault and analysis the hot picture atlas ; the text analyse the various kinds of possible factor which might effect the results of infrared diagnosing in electrical equipments , and propose correspondingly countermeasure against these factor in order to improve the accuracy of measurement ; finally , by using infrared diagnosing techniques analyse and diagnose the interior or exterior fault in part of transformers and arresters in electric network of si chuan , and the results obtained from the text accord with practice 本文在红外辐射的基础知识上引出红外诊断的基本原理，分析了红外成像仪的成像原理；并从红外诊断的角度研究了电气设备的故障模式及其诊断的机理；研究了利用红外热像仪对电气设备的故障进行诊断，获取设备故障热像图谱并进行热像图谱的分析；对影响电气设备红外技术诊断结果的各种可能因素进行了分析探讨，并针对这些干扰因数，提出了相应的对策，以提高检测的准确性；论文最后应用红外热成像技术对四川电网中的部分变压器和避雷器典型的内外部故障进行了诊断分析，得到与实际相符的结果。
Infrared thermography is a relatively new technique in the field of nondestructive detection . infrared scanner can measure the surface temperature of the object rapidly , leaving the object untouched and undamaged . through the surface temperature distribution , the working status of the equipment can be evaluated 红外热像技术是近年发展起来的一种新的无损检测方法，用红外热像仪可以无损、快速、非接触地探测出物体表面温度场分布，从而推导出生产设备材料的工作状况。
During the infrared failure circuit detection system is diagnosing the electronic equipment , because the time and the place are different between the infrared thermal imaging device is diagnosing the standard electric circuit board and the infrared thermal imaging device is diagnosing the failure electric circuit board , the position of their infrared thermal image will take place the relative changing ( for example translation or revolves ) 在红外电路故障诊断系统对电子设备诊断时,由于红外热像仪对标准电路板进行检测的时间与地点和红外热像仪对故障电路板进行检测的时间与地点的不同,导致它们的红外热像图的位置会发生相对改变(如平移或旋转) 。
