Weak magnetic flux leakage : a possible method for studying pipeline defects located either inside or outside the structures

Authors: Liu, Bin; Cao, Y.; Zhang, Hai; Lin, Y. R.; Sun, W. R.; Xu, B.
Abstract: Magnetic leakage distribution results from linear defects of oil–gas pipelines in a weak magnetic field, which is modeled by the magnetic dipole theory. The analysis is useful for the identification of defects located either inside or outside the pipelines. The results indicate that the radial signals of inside–outside defects can be clearly distinguished, and the axial signals are basically the same in a weak magnetic field. The theoretical and the experimental results are very consistent.
Document Type: Article de recherche
Issue Date: 4 June 2015
Open Access Date: 4 June 2017
Document version: AM
Permalink: http://hdl.handle.net/20.500.11794/13132
This document was published in: NDT and E international, Vol. 74, 81–86 (2015)
https://doi.org/10.1016/j.ndteint.2015.05.008
Butterworth-Heinemann
Alternative version: 10.1016/j.ndteint.2015.05.008
Collection:Articles publiés dans des revues avec comité de lecture

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