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Sensors 2015, 15(12), 31036-31055; doi:10.3390/s151229845

Theory and Application of Magnetic Flux Leakage Pipeline Detection

1
School of Automation Science and Electrical Engineering, Beihang University, Beijing 100191, China
2
PetroChina Pipeline Company, Langfang 065000, China
*
Author to whom correspondence should be addressed.
Academic Editor: Vittorio M. N. Passaro
Received: 3 September 2015 / Revised: 21 November 2015 / Accepted: 30 November 2015 / Published: 10 December 2015
(This article belongs to the Section Physical Sensors)
View Full-Text   |   Download PDF [1537 KB, uploaded 10 December 2015]   |  

Abstract

Magnetic flux leakage (MFL) detection is one of the most popular methods of pipeline inspection. It is a nondestructive testing technique which uses magnetic sensitive sensors to detect the magnetic leakage field of defects on both the internal and external surfaces of pipelines. This paper introduces the main principles, measurement and processing of MFL data. As the key point of a quantitative analysis of MFL detection, the identification of the leakage magnetic signal is also discussed. In addition, the advantages and disadvantages of different identification methods are analyzed. Then the paper briefly introduces the expert systems used. At the end of this paper, future developments in pipeline MFL detection are predicted. View Full-Text
Keywords: in-line inspection; magnetic flux leakage detection; pipeline; review in-line inspection; magnetic flux leakage detection; pipeline; review
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Shi, Y.; Zhang, C.; Li, R.; Cai, M.; Jia, G. Theory and Application of Magnetic Flux Leakage Pipeline Detection. Sensors 2015, 15, 31036-31055.

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