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Dipole Modeling of Magnetic Flux Leakage
IEEE Transactions on Magnetics, 2009In this paper, we present an analytical model to represent the 3-D magnetic flux leakage (MFL) field due to the occurrence of a surface-breaking defect in a ferromagnetic specimen. This situation is frequently encountered in the nondestructive evaluation (NDE) of energy pipelines using the MFL technique.
S.M. Dutta, F.H. Ghorbel, R.K. Stanley
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IEEE Magnetics Letters, 2022
The detection of surface and backside defects in steel plates is essential for safety maintenance. Current ac magnetic flux leakage (ACMFL) testing systems generally operate at a high frequency but cannot detect backside defects owing to the skin effect.
Gang Wang +6 more
semanticscholar +1 more source
The detection of surface and backside defects in steel plates is essential for safety maintenance. Current ac magnetic flux leakage (ACMFL) testing systems generally operate at a high frequency but cannot detect backside defects owing to the skin effect.
Gang Wang +6 more
semanticscholar +1 more source
Nondestructive Testing and Evaluation, 2022
This paper presents effect of flaw orientation on magnetic flux leakage (MFL) and remote field eddy current (RFEC) inspection of small diameter (19.05-mm outer diameter, OD and 2.77-mm wall thickness, WT) seamless low carbon steel tubes.
W. Singh +2 more
semanticscholar +1 more source
This paper presents effect of flaw orientation on magnetic flux leakage (MFL) and remote field eddy current (RFEC) inspection of small diameter (19.05-mm outer diameter, OD and 2.77-mm wall thickness, WT) seamless low carbon steel tubes.
W. Singh +2 more
semanticscholar +1 more source
MAGNETIC FLUX LEAKAGE: A BENCHMARK PROBLEM
AIP Conference Proceedings, 2011The magnetic flux leaked by artificial notches machined by EDM is measured for two different rectangular steel plates. The measurements were performed for different field intensities, different liftoffs, and both sides, simultaneously recording the three components of the magnetic field.
J. I. Etcheverry +4 more
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A study of magnetic flux-leakage signals
Journal of Physics D: Applied Physics, 1998Magnetic flux-leakage (MFL) measurement is the most widely used non-destructive technique for in-service inspection of oil and gas pipelines. The effect of line-pressure-induced hoop stress on MFL signals has been studied for an electrochemically milled pit (50% penetration) in a 9 mm thick steel pipe wall.
K Mandal, D L Atherton
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IEEE Sensors Journal, 2022
In-haul cables must be examined and maintained regularly to ensure the smooth operation of cable-stayed bridges. The magnetic flux leakage (MFL) detection method is being applied increasingly commonly to inspect defects.
Dawei Ding, Jialei Lu, Fengyu Xu
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In-haul cables must be examined and maintained regularly to ensure the smooth operation of cable-stayed bridges. The magnetic flux leakage (MFL) detection method is being applied increasingly commonly to inspect defects.
Dawei Ding, Jialei Lu, Fengyu Xu
semanticscholar +1 more source
FEA of pipeline magnetic flux leakage NDE
2009 International Conference on Applied Superconductivity and Electromagnetic Devices, 2009The magnetic flux leakage (MFL) technique is a viable approach to the non-destructive evaluation of pipelines. In this paper, we introduce two-dimensional (2D) finite element analysis (FEA) to estimate the defect profile from the pipeline MFL inspection. The 2D defect characterization would be measured by the axial and the radial components of the MFL.
Xing Li, Liang Chen, Xiaohong Zeng
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Tubing thread inspection by magnetic flux leakage
NDT & E International, 2006Abstract The failure of the oil well tubing thread is a very serious problem which may result in accidents and repairs during well servicing. Routine inspections on the threads are thus necessary. This paper proposes a local magnetic flux leakage testing method to inspect the end of the pieces and introduces a certain kind of tubing thread testing ...
Ding Jinfeng, Kang Yihua, Wu Xinjun
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IEEE Transactions on Instrumentation and Measurement, 2021
Magnetic flux leakage (MFL) testing is widely used to detect and estimate defect in ferromagnetic materials. The lift-off of sensors caused the weakening of the detected signal inevitably.
Lisha Peng +3 more
semanticscholar +1 more source
Magnetic flux leakage (MFL) testing is widely used to detect and estimate defect in ferromagnetic materials. The lift-off of sensors caused the weakening of the detected signal inevitably.
Lisha Peng +3 more
semanticscholar +1 more source
2016
As early as 1868, the British Naval Architects Association began to use magnetic flux leakage technology and found defects on the steel pipe through the compass. In 1918, it was found that powder was absorbed near defects due to the changes of surface magnetic field; thus, magnetic particle detection method was invented.
Songling Huang, Shen Wang
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As early as 1868, the British Naval Architects Association began to use magnetic flux leakage technology and found defects on the steel pipe through the compass. In 1918, it was found that powder was absorbed near defects due to the changes of surface magnetic field; thus, magnetic particle detection method was invented.
Songling Huang, Shen Wang
openaire +1 more source