MFL analysis by 3D finite element method

被引：0

作者：

Huang, ZY ^{[1
]}

Que, PW ^{[1
]}

Chen, L ^{[1
]}

Jin, T ^{[1
]}

机构：

[1] Shanghai Jiao Tong Univ, Coll Elect & Informat, Shanghai 200030, Peoples R China

来源：

ISTM/2005: 6th International Symposium on Test and Measurement, Vols 1-9, Conference Proceedings | 2005年

关键词：

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：

The magnetic flux leakage (MFL) method is currently the most commonly used pipeline inspection technique. However, in 2D FEM defects are treated as 2D profile instead of actually 3D geometry, and the result MFL signal is single channel whereas the actual signals are multi-channel. In this paper, 3D FEM is used to analyze the MFL signals, a generalized potential formulation to the magnetostatic field MFL. problem is discussed, typical 3D defects are accurately modeled and detail MFL signal in test surface are calculated by the method. The relation between defect parameters and MFL signals are also analyzed.

引用

页码：5352 / 5355

页数：4

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