Publisher : The Korean Institute of Electrical Engineers
DOI : 10.5370/JEET.2014.9.6.2218
Title & Authors
Defect Estimation of a Crack in Underground Pipelines by CMFL Type NDT System Kim, Hui Min; Park, Gwan Soo;
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.
Nondestructive testing;Circumferential magnetic flux leakage;Crack;Pipeline;
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