Analysis of a Magnetization Effect on the Sensing Signals in Magnetic Flux Leakage type NDT

descriptionPublicationkeyboard_double_arrow_right Article 25 May 2006Publisher:IEEEJournal:2006 12th Biennial IEEE Conference on Electromagnetic Field Computation

Authors: G.S. Park; K. Seo; D.S. Kim; P.S. Shin; M.H. Lee; H.R. Yoo; Y.W. Rho;

doi: 10.1109/cefc-06.2006.1632933

Analysis of a Magnetization Effect on the Sensing Signals in Magnetic Flux Leakage type NDT

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Abstract

Because of the strong magnetic field of the PIG in magnetic flux type NDT system, the object itself is magnetized and shows the hysteresis characteristics during the sensing which might cause the distortion of the defect signals. In this paper, the magnetizations of the pipeline in MFL type NDT are analyzed, and the methods are developed to compensate the distorted signals according to the magnetic hysteresis of the pipeline

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Pusan National University
Korea (Republic of)

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