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Quantitative method of pipeline magnetic leakage internal signal detection on the basis of an improved neural network [PDF]
Scientific ReportsIn response to the problem of poor quantification ability and unclear feature correlation of pipeline defect magnetic flux leakage signals, a neural network is proposed to establish the relationship between the characteristic quantities of pipeline ...
Guoqing Wang +3 more
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Theory and Application of Magnetic Flux Leakage Pipeline Detection
Sensors, 2015 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 ...
Yan Shi +4 more
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Study on the Impact of Pole Spacing on Magnetic Flux Leakage Detection under Oversaturated Magnetization [PDF]
SensorsMagnetic flux leakage (MFL) inspection employs leakage magnetic fields to effectively detect and locate pipeline defects. The spacing between magnetic poles significantly affects the leakage magnetic field strength. While most detectors typically opt for
Wenlong Liu, Lemei Ren, Guansan Tian
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Pulsed magnetic flux leakage method for hairline crack detection and characterization
AIP Advances, 2018 The Magnetic Flux leakage (MFL) method is a well-established branch of electromagnetic Non-Destructive Testing (NDT), extensively used for evaluating defects both on the surface and far-surface of pipeline structures.
Chukwunonso K. Okolo, Turgut Meydan
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Measurement of magnetic properties in boiler steel at high temperatures using a U-shaped yoke [PDF]
Scientific ReportsThis paper presents a specially developed system for measuring the magnetic properties of boiler steel based on a U-shaped yoke. The novelty of this system lies in the unique combination of two main features: (1) a compensation method for accurately ...
Mingxing Cao +5 more
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Materiales de Construccion, 2022 Non-destructive measurement techniques are used to identify engineering construction components without causing any negative effects on their use as construction components in the future.
Ö. Bektaş +2 more
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Damage identification of broken wires inside and outside the wire rope
Gong-kuang zidonghua, 2021 The wire rope broken wire damage detection is mainly focused on the outside broken wire damage detection, not on the inside broken wire damage detection. Moreover, the inside and outside broken wire identification accuracy is not high.
DOU Liancheng, ZHAN Weixia, BAI Xiaorui
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Gong-kuang zidonghua, 2022 The signal of small defects in steel wire rope is often submerged in wave noise. Therefore, it is difficult to detect small defects in wire rope and easy to miss detection.
ZHONG Xiaoyong +2 more
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Low Frequency Electromagnetic Field Detection and its Signal Processing System
Journal of Harbin University of Science and Technology, 2022 Ferromagnetic substrates of pressure equipment such as boilers， pressure vessels and high-pressure pipes are easy to be corroded， resulting in huge potential safety hazard.
SHEN Chang-yu +4 more
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Sensors, 2023 In order to solve the problem of the quantification of detection signals in the magnetic flux leakage (MFL) of defective in-service oil and gas pipelines, a non-uniform magnetic charge model was established based on magnetic effects.
Bin Liu +5 more
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