Results 21 to 30 of about 4,991,557 (281)

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

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

Magnetic flux leakage measurement setup for defect detection

open access: yesProcedia Engineering, 2010
AbstractThis paper describes a potential technique to detect medium size defects in ferromagnetic specimen by using rather inexpensive but highly sensitive sensors based on the giant magneto resistive effect (GMR) [1]. The sensor effect is used very effectively in ultra high density magnetic recording devices and might thus prove effective in the ...
Atzlesberger, Johannes, Zagar, Bernhard
openaire   +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

Frequency Dependent Model of Leakage Inductance for Magnetic Components [PDF]

open access: yes, 2012
Theoretical methods for the calculation of winding losses with respect to frequency have been well documented, but the variation in leakage inductance of magnetic components due to frequency has been less well addressed. In this paper Dowell’s well-known
Wilcock, Reuben   +5 more
core   +1 more source

Theory and Development of Magnetic Flux Leakage Sensor for Flaws Detection: A Review

open access: yesJurnal Kejuruteraan, 2019
This paper presents a comprehensive review of the development of magnetic flux leakage (MFL) applied by the researcher to improve existing methodology and evaluation techniques in MFL sensor development for corrosion detection in Above Storage Tanks (ASTs).
Nor Afandi Sharif   +3 more
openaire   +2 more sources

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

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