论文部分内容阅读
作者前一篇关于模拟电路多重故障诊断的文章所提出的方法是通过测量被试电路的端口变量,适当选择伴随网络及应用特勒根定理,解一组线性代数方程来定位各故障元件并计算其位的。其可诊断条件是故障元件数要少于端口数。本文所提出的双频率法,只要电路中有电感或电容元件,给被试网络供以两种不同频率的信号,测量端口变量,如果端口数等于或大于故障元件数,用与前法近似的过程,就可实现多重故障的诊断。
The author’s previous article on multi-fault diagnosis of analog circuits proposed a method of locating the faulty components by calculating the port variables of the circuit under test, choosing the accompanying network and applying the Teller’s theorem appropriately and solving a set of linear algebraic equations Its bit. Its diagnostic condition is that the number of failed components is less than the number of ports. The dual-frequency method proposed in this paper measures the port variables as long as there are inductors or capacitors in the circuit and provides signals of two different frequencies to the tested network. If the number of ports is equal to or greater than the number of faulty elements, Process, you can achieve the diagnosis of multiple faults.