Results 11 to 20 of about 4,635 (214)

Research on the Forward Solving Method of Defect Leakage Signal Based on the Non-Uniform Magnetic Charge Model

open access: yesSensors, 2023
Pipeline magnetic flux leakage inspection is widely used in the evaluation of material defect detection due to its advantages of having no coupling agent and easy implementation.
Pengfei Gao   +3 more
doaj   +1 more source

Analysis of the Influence of Ferromagnetic Corrosion Products on Magnetic Flux Leakage Detection of Pipeline [PDF]

open access: yesCailiao Baohu
Magnetic flux leakage internal detection is an efficient method for detecting defects in long-distance pipelines.However,some corrosion points (such as stray current corrosion) contain a large amount of ferromagnetic corrosion products, which can affect ...
ZHU Xinghui, HU Peng, MENG Xiangji, LYU Tan, GUO Bin, CHEN Jinzhong, ZHOU Demin
doaj   +1 more source

Optimization design of magnetic flux circuit for mine wire rope damage detection

open access: yesGong-kuang zidonghua, 2022
The magnetic flux leakage(MFL) detection method is the most widely used method for detecting the mine wire rope damage, and there is no research on the influence of magnetic noise signal in magnetic flux circuit on the MFL detection signal of wire rope ...
TIAN Jie   +4 more
doaj   +1 more source

Excitation device for mining steel wire rope based on magnetic flux leakage detection

open access: yesGong-kuang zidonghua, 2023
The current research does not consider the influence of wire rope swing on the excitation device in the context of engineering applications, resulting in unsatisfactory detection results.
LI Jianhui   +4 more
doaj   +1 more source

Detection of Rail Defects Using NDT Methods

open access: yesSensors, 2023
The rapid development of high-speed and heavy-haul railways caused rapid rail defects and sudden failure. This requires more advanced rail inspection, i.e., real-time accurate identification and evaluation for rail defects. However, existing applications
Longhui Xiong   +4 more
doaj   +1 more source

Unsaturated Magnetic Flux Leakage Detection and Identification of Scratches in Oil and Gas Pipelines

open access: yesShiyou jixie, 2022
The online detection technology for oil and gas pipelines can effectively detect metal loss defects, but it has limited ability to distinguish corrosion and mechanical damage scratches.
Zhang Xuewei   +3 more
doaj  

Research on multiloop magnetic detection methodfor steel wire rope detection

open access: yes矿业科学学报, 2018
In order to ensure the safe operation of steel wire rope,it is necessary to carry out periodical nondestructive testing.In the existing method of wire rope detection,electromagnetic detection based on magnetic flux leakage principle is recognized as the ...
Tian Jie   +6 more
doaj   +1 more source

Investigation of and Components of the Magnetic Flux Leakage in Ferromagnetic Laminated Sample

open access: yesAdvances in Materials Science and Engineering, 2013
The magnetic flux leakage (MFL) technique is most commonly used for crack detection from iron bars, laminated sheets, and steel tubes of ferromagnetic nature.
Mustafa Göktepe
doaj   +1 more source

A Filtering Method for Suppressing the Lift-Off Interference in Magnetic Flux Leakage Detection of Rail Head Surface Defect

open access: yesApplied Sciences, 2022
Magnetic flux leakage (MFL) detection is a common nondestructive detection method which is usually used to detect the surface defects of steel pipes and rails.
Yinliang Jia   +5 more
doaj   +1 more source

Composite excitation multi-extension direction defect magnetic flux leakage detection technology

open access: yesJournal of Measurement Science and Instrumentation, 2022
In the traditional pipeline magnetic flux leakage (MFL) detection technology, circumferential or axial excitation is mainly used to excite the magnetic field of defects.
WEI Minghui   +5 more
doaj  

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