Results 21 to 30 of about 219,781 (336)

Development of magnetic flux leakage device as a non-destructive method for structural reinforcement detection

open access: yesMateriales 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
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

Intrinsic leakage of the Josephson flux qubit and breakdown of the two-level approximation for strong driving [PDF]

open access: yes, 2010
Solid state devices for quantum bit computation (qubits) are not perfect isolated two-level systems, since additional higher energy levels always exist.
Alejandro Ferrón   +2 more
core   +2 more sources

Design and optimization of a mechanical variable-leakage-flux interior permanent magnet machine with auxiliary rotatable magnetic poles

open access: yesCES Transactions on Electrical Machines and Systems, 2021
A novel mechanical variable-leakage-flux interior permanent magnet machine (MVLF-IPMM) is proposed for electric vehicles (EVs) in this paper, which employs a mechanical flux-regulating device and auxiliary rotatable magnetic poles.
Tongze Sun   +4 more
doaj   +1 more source

Study on problems in detecting plural cracks by alternating flux leakage testing using 3D nonlinear eddy current analysis [PDF]

open access: yes, 2003
The alternating magnetic flux leakage testing is used for the detection of cracks in a steel plate. A new technique of how to detect plural cracks, which are located at a very short distance from each other, using the parallel (x-) component of the ...
Gotoh, Yuji, Takahashi, Norio
core   +1 more source

Observation of the stray field of thin film magnetic tips using electron holography [PDF]

open access: yes, 1996
The stray field around thin film ferromagnetic tips employed for magnetic force microscopy has been revealed using electron holography. The experimental phase difference maps are in good agreement with simulations.
Frost, B.G.   +3 more
core   +2 more sources

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

Detailed Study of Closed Stator Slots for a Direct-Driven Synchronous Permanent Magnet Linear Wave Energy Converter

open access: yesMachines, 2014
The aim of this paper is to analyze how a permanent magnet linear generator for wave power behaves when the stator slots are closed. The usual design of stator geometry is to use open slots to maintain a low magnetic leakage flux between the stator teeth.
Erik Lejerskog, Mats Leijon
doaj   +1 more source

3‐D magnetic equivalent circuit model for a coreless axial flux permanent‐magnet synchronous generator

open access: yesIET Electric Power Applications, 2021
In coreless axial flux permanent magnet synchronous generators (AFPMSGs), magnetic leakage and fringing effect is significant due to the large air gap and increases the difficulty in magnetic field calculation.
Yunpeng Zhang, Yiming Wang, Shuning Gao
doaj   +1 more source

Finite element analysis of magnetic circuits composed of axisymmetric and rectangular regions [PDF]

open access: yes, 1985
A new approximate method is developed for calculating three-dimensional magnetic fields in magnetic circuits composed of connected axisymmetric and rectangular regions.
Funakoshi, H.   +4 more
core   +1 more source

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