设备诊断过程由状态监测、故障诊断、安全保障和维修决策等主要环节组成 ,每个环节的实施和处理也就构成了设备诊断技术的内容。从历史的角度来看 ,设备诊断技术的发展过程大致可分为4个阶段。只有当计算机技术的发展才使设备诊断技术得到了质的飞跃 ,并取得了重大经济效益。随 Equipment diagnosis process by the state monitoring, fault diagnosis, security and maintenance decision-making and other major components, the implementation and processing of each link also constitutes the content of equipment diagnostic techniques. From a historical point of view, the development of equipment diagnosis technology can be divided into four stages. Only when the development of computer technology has enabled equipment diagnostic technology has been a qualitative leap and achieved significant economic benefits. With