Results 11 to 20 of about 37,143 (302)
A Review of Magnetic Flux Leakage Nondestructive Testing
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. An analytical expression for the leakage magnetic field based on the 3D magnetic dipole model is provided. Based
Bo Feng +4 more
openaire +2 more sources
The performance of Permanent Magnet Synchronous Machines (PMSMs) is significantly influenced by the temperature of the Permanent Magnets (PMs). Therefore, accurate knowledge of PM temperature is necessary for control and monitoring purposes.
Diego F. Laborda +5 more
doaj +1 more source
Computation of electromagnetic forces in the windings of amorphous core transformers [PDF]
Electromagnetic forces generated by the short circuit current and leakage flux in low- and high-voltage windings of distribution transformers as well as amorphous core transformers will cause the translation, destruction, and explosion of the windings ...
Bao Doan Thanh +2 more
doaj +1 more source
Linear vibration motors are becoming more popular for use in haptic applications owing to their better performance. However, a permanent magnet with a large volume causes massive magnetic flux leakage, which can be harmful to passengers with a cardiac ...
Zhi-Xiong Jiang +5 more
doaj +1 more source
Simulation of Electromagnetic Field of a Powerful Electrical Machine
With the aid of mathematical and physical simulation the electromagnetic field distributions in the end zone of a powerful turbogenerator has been obtained. On the basis of the comparison of the axial component of the magnetic induction on the surface of
D. I. Hvalin +2 more
doaj +1 more source
Leakage of the Josephson flux qubit
We study the dynamics of the Josephson flux qubit, which consists on a SQUID loop with three Josephson junctions operated at or near a magnetic flux of half quantum. We perform simulations of the time dependent Schrodinger equation when the system is started in the ground state.
Daniel Domínguez, Ezequiel N Pozzo
openaire +1 more source
This paper addresses the influence of the primary and secondary resistances on the behavior of minor hysteresis loops when the electromagnetic device is fed by three-level PWM (pulse width modulation) voltage. To study the device transferring energy to a
Ricardo de A. Elias +5 more
doaj +1 more source
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
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Detection of uniaxial fatigue stress under magnetic flux leakage signals using Morlet wavelet
This paper demonstrates the application of continuous wavelet transform technique for magnetic flux leakage signal generated during a uniaxial fatigue test.
S.M. Firdaus +4 more
doaj +1 more source
Effect of Scanning Acceleration on the Leakage Signal in Magnetic Flux Leakage Type of Non-destructive Testing [PDF]
This work investigates the influence of acceleration on the leakage signal in magnetic flux leakage type of non-destructive testing. The research is addressed through both designed experiments and simulations.
Sienz, Johann +13 more
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