| 基于NOFRFs的模拟电路中的非线性故障诊断 |
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| 引用本文： | 杨东东,马红光. 基于NOFRFs的模拟电路中的非线性故障诊断[J]. 电子测量技术, 2010, 33(11): 94-97,109 |
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| 作者姓名： | 杨东东 马红光 |
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| 作者单位： | 第二炮兵工程学院101教研室,西安,710025;第二炮兵工程学院101教研室,西安,710025 |
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| 摘 要： | 电路系统的正常与故障状态在很多情况下表现在其非线性传递特性发生变化,因而通过检测电路的非线性特征来诊断电路的故障是一种有效的办法。介绍了一种基于NOFRFs来诊断模拟电路系统非线性故障的方法,提出了一种基于系统NOFRFs模型的故障判据。通过比较实测情况下与正常情况下电路系统的非线性特征来判断当前电路是否处于故障状态。通过仿真验证了这种方法的正确性。该方法操作简单,计算量小,故可应用于许多实际的工程场合。
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| 关 键 词： | 模拟电路 故障诊断 NOFRF |
NOFRF-based method for fault diagnosis of analog circuit systems |
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| Yang Dong-dong,Ma Hong-guang. NOFRF-based method for fault diagnosis of analog circuit systems[J]. Electronic Measurement Technology, 2010, 33(11): 94-97,109 |
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| Authors: | Yang Dong-dong Ma Hong-guang |
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| Affiliation: | Yang Dongdong Ma Hongguang (The Second Artillery Engineering Institute,Xi'an 710025) |
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| Abstract: | Circuitry normal and fault conditions in many cases are reflected in the change of its nonlinear transfer characteristics.Therefore,the fault diagnose will be effective if the nonlinearity of analog circuit is taken as the detecting parameter.This paper introduces a NOFRF-based method for fault diagnosis of analog circuit systems.Introduced a approach based on NOFRFs to detect faults in analog circuit systems,and a failure criterion based on NOFRFs model.The nonlinear characteristics are compared between te... |
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| Keywords: | analog circuit fault diagnosis NOFRF |
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