비파괴검사학회지 (Journal of the Korean Society for Nondestructive Testing)

  • 제30권6호
  • /
  • Pages.521-526
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  • 2010
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  • 1225-7842(pISSN)
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  • 2287-402X(eISSN)
한국비파괴검사학회 (The Korean Society for Nondestructive Testing)
권호 표지

Locating Mechanical Damages Using Magnetic Flux Leakage Inspection in Gas Pipeline System

  • Kim, Jae-Joon (School of Computer and Communication Engineering, Daegu University)
  • 투고 : 2010.10.21
  • 심사 : 2010.12.10
  • 발행 : 2010.12.30
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초록

Gas transmission pipelines are often inspected and monitored using the magnetic flux leakage method. An inspection vehicle known as a "pig" is launched into the pipeline and conveyed along the pipe by the pressure of natural gas. The pig contains a magnetizer, an array of sensors and a microprocessor-based data acquisition system for logging data. This paper describes magnetic flux leakage (MFL) signal processing used for detecting mechanical damages during an in-line inspection. The overall approach employs noise removal and clustering technique. The proposed method is computationally efficient and can easily be implemented. Results are presented and verified by field tests from an application of the signal processing.

키워드

과제정보

연구 과제 주관 기관 : Daegu University

참고문헌

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