级联线性电路子电路故障诊断的理论与方法

A Dictionary Approach for Fault Location of Sub-Circuits in Cascade Linear Circuits

提出了一种灵敏度序列字典法 ,可快速定位级联线性电路中单级子电路的故障 ,不管这个故障是何种性质 (硬、软、单、多 ) ;提出了逐级搜索法 ,可定位两级以上子电路同时发生的故障 ,不管这些故障是何种性质 .这种软、硬故障统一诊断字典法的继续和发展 ,使字典法成功地从“元件级”诊断进入了“子电路级”诊断 .

In this paper,a dictionary approach for fault location in cascade linear circuits is presented. The approach can locate any sub circuits which have any faults (soft or hard, one or more than one). Because “cascade” is the universal joint way among sub circuits of linear circuits, the approach is practical and usefull.