狭义上,故障诊断包括两层含义即故障检测和故障定位,前者是指测试一个系统,判断其是否存在故障,而后者则是指在前者的基础上进一步定位故障点。广义上,故障诊断的内容,除了包含要判断系统有无故障以及故障产生后找到故障部位,还包含对故障特性的分析以及所采取的措施,例如让系统 Narrow sense, the fault diagnosis includes two meanings of fault detection and fault location, the former refers to test a system to determine whether there is a fault, while the latter refers to the former based on the further positioning of the fault point. In a broad sense, the content of fault diagnosis includes not only determining whether there is a fault in the system, but also finding a fault location after the fault occurs, and also analyzing fault characteristics and measures taken, for example, letting the system