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http://dx.doi.org/10.5370/JEET.2014.9.6.2218

Defect Estimation of a Crack in Underground Pipelines by CMFL Type NDT System  

Kim, Hui Min (Dept. of Electrical Engineering, Pusan National University)
Park, Gwan Soo (Dept. of Electrical Engineering, Pusan National University)
Publication Information
Journal of Electrical Engineering and Technology / v.9, no.6, 2014 , pp. 2218-2223 More about this Journal
Abstract
A crack which is axially oriented with small size is hard to detect in conventional system. CMFL(Circumferential Magnetic Flux Leakage) type PIG(Pipelines Inspection Gauge) in the NDT(Nondestructive Testing), is operated to detect this defect called axially oriented cracks in the pipe. It is necessary to decompose the size and shapes of cracks for the maintenance of underground pipelines. This article is mainly focused on the decomposing method of the size and shape of the axially oriented cracks by using inspection signal data for defect.
Keywords
Nondestructive testing; Circumferential magnetic flux leakage; Crack; Pipeline;
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