Results 21 to 30 of about 4,730,238 (111)

Deep Learning for Magnetic Flux Leakage Detection and Evaluation of Oil & Gas Pipelines: A Review

open access: yesEnergies, 2023
Magnetic flux leakage testing (MFL) is the most widely used nondestructive testing technology in the safety inspection of oil and gas pipelines. The analysis of MFL test data is essential for pipeline safety assessments.
Songling Huang   +3 more
doaj   +1 more source

Enhancing Wire-Rope Damage Signals Based on a Radial Magnetic Concentrator Bridge Circuit

open access: yesSensors, 2022
Hall-effect sensors are used for the non-destructive testing of wire ropes owing to their low power consumption and high operation frequency. The high-speed operation of wire ropes causes vibration inclination at different frequencies, which makes it ...
Jie Tian   +5 more
doaj   +1 more source

A Review of Magnetic Flux Leakage Nondestructive Testing

open access: yes, 2022
Magnetic flux leakage (MFL) testing is a widely used nondestructive testing (NDT) method for the inspection of ferromagnetic materials. This review paper presents the basic principles of MFL testing and summarizes the recent advances in MFL.
Hongming Tu   +9 more
core   +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

3D magnetic field sensing for magnetic flux leakage defect characterisation

open access: yes, 2006
Magnetic Flux Leakage (MFL) testing is widely used to detect defects in pipelines, rail track and other structures. The measurement of the two field components perpendicular to the test surface and parallel to the applied field in MFL systems is well ...
Tian, Gui Yun, Wilson, John W; id_orcid
core   +10 more sources

The Research of 30 mm Detecting Distance of Testing Device for Wire Rope Based on Open Magnetizer

open access: yesApplied Sciences, 2022
Wire rope will have defects such as local faults (LF) and loss of metal area (LMA) during the long-term using process. The nondestructive testing method of magnetic flux leakage (MFL) has been widely used in wire rope defect detection.
Mengqi Liu   +6 more
doaj   +1 more source

Magnetic induction strength on surface of a ferro-medium circular cylinder

open access: yesTheoretical and Applied Mechanics Letters, 2016
Based on the Ampere molecular current hypothesis and the Biot–Savart law, a magnetic model on the metal magnetic memory (MMM) testing of a specimen is proposed.
M. Jin
doaj   +1 more source

An Online MFL Sensing Method for Steel Pipe Based on the Magnetic Guiding Effect

open access: yesSensors, 2017
In order to improve the sensitivity of online magnetic flux leakage (MFL) testing for steel pipe, a sensing method based on the magnetic guiding effect is proposed and investigated in this paper.
Jianbo Wu   +5 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

Wire Rope Defect Recognition Method Based on MFL Signal Analysis and 1D-CNNs

open access: yesSensors, 2023
The quantitative defect detection of wire rope is crucial to guarantee safety in various application scenes, and sophisticated inspection conditions usually lead to the accurate testing of difficulties and challenges.
Shiwei Liu, Muchao Chen
doaj   +1 more source

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