Window Feature-Based Two-Stage Defect Identification Using Magnetic Flux Leakage Measurements.

Jinhai Liu,Mingrui Fu,Feilong Liu,Jian Feng, Kuangqing Cui

IEEE Transactions on Instrumentation and Measurement（2018）

引用 35|浏览4

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摘要

Magnetic flux leakage (MFL) testing, one of the nondestructive testing methods, is widely adapted by approximately 90% of in-service pipelines. It is very important to identify defects in MFL testing. This paper presents a method to detect defects and determine precise defect regions using window features generated from MFL measurements. The main contributions are: four novel window features of de...

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关键词

Testing,Feature extraction,Pipelines,Hidden Markov models,Inspection,Magnetic circuits,Bayes methods

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