论文信息 - Analysis of Magnetic Flux Leakage Signals of Instrumented Pipeline Inspection Gauge Using Finite Element Method

Analysis of Magnetic Flux Leakage Signals of Instrumented Pipeline Inspection Gauge Using Finite Element Method

Abstract Computational electromagnetics is used to study, design and optimize electromagnetic instruments. This paper introduces function of a magnetic instrument, namely, instrumented pipeline inspection gauge (IPIG), and various computational methods useful for its analysis. Usage of FEMLAB for detailed understanding of magnetic flux leakage (MFL) phenomenon both in 2D and 3D finite element analysis (FEA) is explained. It finally presents a method to perform an important step of defect characterization for IPIG by building large database using FEA tool.

Rajesh Keshwani

[1] Tetsuya Saito,et al. Magnetic flux leakage by adjacent parallel surface slots , 1997 .

[2] Lynann Clapham,et al. A model for magnetic flux leakage signal predictions , 2003 .

[3] Satish S. Udpa,et al. Magnetic flux leakage modeling for mechanical damage in transmission pipelines , 1998 .

[4] B. Brudar,et al. Magnetic leakage fields calculated by the method of finite differences , 1985 .

[5] Gui Yun Tian,et al. 3D magnetic field sensing for magnetic flux leakage defect characterisation , 2006 .

[6] G Katragadda,et al. Alternative magnetic flux leakage modalities for pipeline inspection , 1996 .

[7] David L. Atherton,et al. A study of magnetic flux-leakage signals , 1998 .