SOFT FAULT DIAGNOSIS IN ANALOG CIRCUIT BASED ON FUZZY AND DIRECTION VECTOR

被引：0
|
作者：
Zhou, Longfu [1 ]
Shi, Yibing [1 ]
Tang, Jingyuan [1 ]
Li, Yanjun [1 ]
机构：
[1] Univ Elect Sci & Technol China, Sch Automat Engn, Chengdu 610054, Peoples R China
来源：
METROLOGY AND MEASUREMENT SYSTEMS | 2009年 / 16卷 / 01期
关键词：
analog circuit; fault diagnosis; fuzzy; direction vector;
D O I：
暂无
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
A basic circuit theory of fault diagnosis for analog circuits with parameter tolerance is proposed in this paper. The approach uses the direction vector of voltage increment in test nodes as a fault signature for predefined faults. A linear equation is built to locate a faulty element. On the condition that the component tolerances are taken into account, the concepts of direction vector and fuzzy analysis method are combined together to analyze a parametric fault. Examples illustrate the proposed approach and show its effectiveness.
引用
收藏
页码：61 / 75
页数：15
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