在有些讨论非线性电阻电路故障诊断的论文中,常常应用小信号线性化模型来替代非线性器件.这种替代易受工作点漂移的影响.应用非线性器件的等效线性比模型讨论了非线性电阻网络的多故障诊断,可计及工作点漂移的影响,并导出模拟网络多故障诊断方程,达到故障定位和定值. In some papers dealing with fault diagnosis of nonlinear resistor circuits, small signal linearization models are often used instead of non-linear devices, which are susceptible to operating point drift.The equivalent linear ratio model for non-linear devices is discussed in terms of non- The multi-fault diagnosis of the linear resistor network can take into account the influence of the drift of the operating point and derive the multi-fault diagnosis equation of the analog network to achieve the fault location and setting.