针对装甲装备典型故障诊断操作复杂及缺陷检测效率低下等问题,将国外装备维修中广泛应用的红外热波技术引入到装甲装备维修过程中。简要介绍了红外热波技术的基本原理及特点,系统分析了信噪比和热激励2个因素对检测效果的影响,并成功实现了装备发动机动力不足的故障诊断和装甲板裂纹的缺陷检测。试验结果表明：该技术能够在不解体的情况下实现发动机动力不足故障的准确定位,同时能够在3.5 s之内实现装甲车底板裂纹等缺陷的快速检测。

In order to reduce the operating complexity of fault diagnosis and improve the defecting efficiency of defect detection in armored equipments, the infrared thermal wave technology is introduced to armored equipments of PLA, which has been used widely in equipment maintenance in other countries. Firstly, this paper briefly depicted the basic principles and characteristics of infrared thermal wave. Then, two main factors including signal to noise ratio (SNR) and thermal excitation influencing the detection results were analyzed in detail. Finally, the experiments for fault diagnosis and defect detection were carried out. Experimental results show the engine power insufficiency can be positioned accurately without disassemble and the armored plate crack can be detected fast within 3.5s by means of this method.