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자기 누설 신호의 측정을 이용한 배관의 결함 깊이 추정

Defect depth estimation using magnetic flux leakagemeasurement for in-line inspection of pipelines

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주제분류공학일반

초록

Abstract

Magnetic Flux Leakage (MFL) methods are widely employed for the nondestructive evaluation (NDE) of gas pipelines.filed due to changes in wall thickness. The gas industry is keenly interested in automating the interpretation process,because a large amount of data to be analyzed is generated for in-line inspection. This paper presents a novel approachto the tasks of data segmentation, feature extraction and depth estimation from gas pipelines. Also, we will show thatthe proposed method successfully identifying artificial defects.

참고문헌 (6)

  1. J. Y. Lee, "Hierarichical rule based characterization of MFL signals obtained from natural gas pipeline inspection", 5(5), pp.24~27 (2000)
  2. A. E. Crouch, "In-line inspection of natural gas pipelines" (1993)
  3. T. A. Bubenik, "Magnetic flux leakage technology for natural gas pipeline inspection" (1992)
  4. J. Sutherland, "Application of the circumferential component of magnetic flux leakage measurement for in-line inspection of pipelines" (1999)
  5. J. Sutherland, "Advances in magnetic flux leakage measurement and inspection for metal loss in pipelines" (1999)
  6. G. A. F. Seber, "Linear regression analysis" (2003)

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