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在众多的模拟电路故障诊断法中,目前认为比较好的一种是所谓的元件连接模型列表故障诊断法(简称CCM法),属于一类通过解元件值进行故障诊断的方法.它的主要优点是避免了元件的容差问题,缺点是诊断方程的阶次较高,且需对一些大矩阵进行预运算,因而计算时间过长,所占内存过多.本文提出一种能显著改善上述方法不足之处的节点电压法,并用FORTRAN 77编制了实用程序,在B1955机上进行了实例验证和比较.
Among the many analog circuit fault diagnosis methods, what is currently considered as a better one is the so-called component connection model list fault diagnosis method (CCM method for short), which belongs to a class of fault diagnosis methods by solving component values. Its main advantages Is to avoid the element tolerance problem, the disadvantage is the higher order of the diagnostic equation, and the need to pre-operation of some large matrix, and thus the calculation time is too long, the memory is too much.This paper presents a significantly improved the above method Deficiencies of the node voltage method, and the use of FORTRAN 77 compiled a utility program in the B1955 machine to verify and compare.