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http://dx.doi.org/10.7734/COSEIK.2015.28.4.417

Magnetic Flux Leakage Method based Local Fault Detection for Inspection of Wire Rope  

Kim, Ju-Won (Department of Convergence Engineering for Future City, SungKyunKwan Univ.)
Park, Ju-Young (Department of Civil & Environmental System Engineering, SungKyunKwan Univ.)
Park, Seunghee (School of Architectural, Civil & Environmental Engineering, SungKyunKwan Univ.)
Publication Information
Journal of the Computational Structural Engineering Institute of Korea / v.28, no.4, 2015 , pp. 417-423 More about this Journal
Abstract
In this study, Magnetic Flux Leakage(MFL)-based inspection system was applied to detect the local fault of wire rope. To verify the feasibility of the proposed damage detection technique, an 4-channel MFL sensor head prototype was designed and fabricated. A wire rope with several types of cross-sectional damages were fabricated and scanned by the MFL sensor head to measure the magnetic flux density of the wire rope specimen. To interpret the condition of the wire rope, magnetic flux signals were used to determine the locations of the flaws. To improve the resolution of signal, the instantaneous variation value of magnetic flux was utilized. Measured signals from the damaged specimen were compared with thresholds set for objective decision making. Finally, the results were compared with information on actual inflicted damages to confirm the accuracy and effectiveness of the proposed cable monitoring method.
Keywords
magnetic flux leakage; local fault; wire rope; GEV distribution; instantaneous variation;
Citations & Related Records
Times Cited By KSCI : 6  (Citation Analysis)
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