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Theory and Application of Magnetic Flux Leakage Pipeline Detection

机译:漏磁管道检测的理论与应用

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摘要

Magnetic flux leakage (MFL) detection is one of the most popular methods of pipeline inspection. It is a nondestructive testing technique which uses magnetic sensitive sensors to detect the magnetic leakage field of defects on both the internal and external surfaces of pipelines. This paper introduces the main principles, measurement and processing of MFL data. As the key point of a quantitative analysis of MFL detection, the identification of the leakage magnetic signal is also discussed. In addition, the advantages and disadvantages of different identification methods are analyzed. Then the paper briefly introduces the expert systems used. At the end of this paper, future developments in pipeline MFL detection are predicted.
机译:磁通量泄漏(MFL)检测是管道检测中最受欢迎的方法之一。这是一种无损检测技术,它使用磁敏传感器检测管道内外表面上的缺陷的漏磁场。本文介绍了MFL数据的主要原理,测量和处理。作为MFL检测定量分析的关键,还讨论了泄漏磁信号的识别。另外,分析了不同识别方法的优缺点。然后,本文简要介绍了所使用的专家系统。在本文的最后,预测了管道MFL检测的未来发展。

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