Results 41 to 50 of about 1,874 (204)

Magnetic Flux Leakage Method: Large-Scale Approximation

open access: yes, 2015
We consider the application of the magnetic flux leakage (MFL) method to the detection of defects in ferromagnetic (steel) tubulars. The problem setup corresponds to the cases where the distance from the casing and the point where the magnetic field is ...
Bacciarelli, Mark   +5 more
core   +1 more source

Magnetic Flux Leakage Sensing-Based Steel Cable NDE Technique

open access: yesShock and Vibration, 2014
Nondestructive evaluation (NDE) of steel cables in long span bridges is necessary to prevent structural failure. Thus, an automated cable monitoring system is proposed that uses a suitable NDE technique and a cable-climbing robot. A magnetic flux leakage-
Seunghee Park   +3 more
doaj   +1 more source

Mechanism of Magnetic Flux Leakage Detection Method Based on the Slotted Ferromagnetic Lift-Off Layer

open access: yesSensors, 2022
Magnetic flux leakage (MFL) testing is widely used in non-destructive testing of ferromagnetic components. In view of the serious attenuation of the leakage magnetic field (LMF) caused by the transmission of LMF in the lift-off layer between the ...
Jian Tang   +4 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

Development of a MFL system with optical positioning for ferromagnetic plate inspection

open access: yese-Journal of Nondestructive Testing
This paper presents the development of a Magnetic Flux Leakage (MFL) based system for non-destructive testing of ferromagnetic plates. Our approach integrates a magnetic circuit using neodymium-iron-boron magnets, a Hall effect sensor for flux ...
A. Ahemadi, Abdelhalim Taieb brahimi
doaj   +1 more source

Comparison of two magnetic saturation models of induction machines and experimental validation [PDF]

open access: yes, 2017
The paper develops a systematic comparison of two nonlinear models of induction machines in magnetic saturation using stator and rotor currents as state variables.
Bodson, Marc   +2 more
core   +1 more source

Quantitative Detection of Wire Rope Based on Three-Dimensional Magnetic Flux Leakage Color Imaging Technology

open access: yesIEEE Access, 2020
In the field of nondestructive testing (NDT) of wire rope, magnetic flux leakage (MFL) detection is the most widely used method. The traditional single-dimensional MFL detection system has the disadvantages of large volume, heavy weight, low sensitivity ...
Juwei Zhang, Fuchang Peng, Jinbao Chen
doaj   +1 more source

Quantitative Study on MFL Signal of Pipeline Composite Defect Based on Improved Magnetic Charge Model

open access: yesSensors, 2021
Pipeline magnetic flux leakage (MFL) internal detection technology is the most widely used and effective method in the field of long-distance oil and gas pipeline online detection.
Bin Liu, Ning Luo, Gang Feng
doaj   +1 more source

A Novel Nonlinear Magnetic Equivalent Circuit Model for Magnetic Flux Leakage System

open access: yesApplied Sciences
To ensure efficient inspection using the magnetic flux leakage (MFL) method, generating a flux density near the saturation level within the tested material is essential.
Okan Kara, Hasan Hüseyin Çelik
doaj   +1 more source

Noise-Produced Patterns in Images Constructed from Magnetic Flux Leakage Data

open access: yes, 2015
Magnetic flux leakage measurements help identify the position, size and shape of corrosion-related defects in steel casings used to protect boreholes drilled into oil and gas reservoirs. Images constructed from magnetic flux leakage data contain patterns
Bacciarelli, Mark   +4 more
core   +1 more source

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