Articles with "eddy current" as a keyword



A numerical study of the acoustic radiation due to eddy current‐cryostat interactions

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Published in 2017 at "Medical Physics"

DOI: 10.1002/mp.12261

Abstract: Purpose To investigate the acoustic radiation due to eddy current‐cryostat interactions and perform a qualitative analysis on noise reduction methods. Methods In order to evaluate the sound pressure level (SPL) of the eddy current induced… read more here.

Keywords: acoustic radiation; warm bore; bore wall; eddy current ... See more keywords

Pre‐excitation gradients for eddy current nulled convex optimized diffusion encoding (Pre‐ENCODE)

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Published in 2024 at "Magnetic Resonance in Medicine"

DOI: 10.1002/mrm.30068

Abstract: To evaluate the use of pre‐excitation gradients for eddy current–nulled convex optimized diffusion encoding (Pre‐ENCODE) to mitigate eddy current–induced image distortions in diffusion‐weighted MRI (DWI). read more here.

Keywords: eddy current; current nulled; gradients eddy; pre excitation ... See more keywords

Feasibility Study for Dual Phase Free Breathing 3D bSSFP MRA With Preserved Eddy-Current Tolerance With Adaptive k-Space Lengths (PETAL) Acquisition.

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Published in 2025 at "Magnetic resonance in medicine"

DOI: 10.1002/mrm.70192

Abstract: PURPOSE To demonstrate the feasibility of a novel dual-phase self-navigated, free-breathing balanced steady-state free-precession whole-heart MRA acquisition for aortic annulus size measurement using a Cartesian trajectory that mitigates eddy-current artifacts by minimizing k-space jumps between… read more here.

Keywords: eddy current; free breathing; acquisition; icc ... See more keywords

Experimental verification of quasi-nonlinear modeling of magnetic steel for time-harmonic eddy current loss calculation

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Published in 2017 at "Electrical Engineering"

DOI: 10.1007/s00202-016-0372-7

Abstract: Eddy current losses are evaluated on FEM (finite element method) models of magnetic steel rings. DC magnetization curve has been obtained from measurements on steel samples and is used in FEM models for defining relative… read more here.

Keywords: time harmonic; calculation; eddy current; magnetic steel ... See more keywords

Helical retaining sleeve for eddy current loss reduction in high-speed SPM machine

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Published in 2021 at "Electrical Engineering"

DOI: 10.1007/s00202-021-01218-4

Abstract: A rotor retaining sleeve is mechanically necessary in the structure of high-speed SPM machines to prevent structural failure. However, the significant eddy current loss within metal sleeves leads to a reduction in electromagnetic efficiency and… read more here.

Keywords: current loss; retaining sleeve; eddy current; speed spm ... See more keywords
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A Circuit Equation as a Limit of Eddy Current Equations

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Published in 2017 at "Archive for Rational Mechanics and Analysis"

DOI: 10.1007/s00205-017-1136-x

Abstract: We consider a three-dimensional time-harmonic eddy current problem formulated in terms of the magnetic field. We prove that in the case of one thin toroidal conductor, eddy current equations have as a limit Kirchhoff’s algebraic… read more here.

Keywords: circuit equation; eddy current; limit eddy; current equations ... See more keywords

A Robust Inversion Method for Quantitative 3D Shape Reconstruction from Coaxial Eddy Current Measurements

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Published in 2017 at "Journal of Scientific Computing"

DOI: 10.1007/s10915-016-0241-6

Abstract: This work is motivated by the monitoring of conductive clogging deposits in steam generator at the level of support plates. One would like to use multistatic measurements from coaxial coils in order to obtain estimates… read more here.

Keywords: robust inversion; inversion method; shape; eddy current ... See more keywords

Reduction of Pulsed Eddy Current Probe Footprint Using Sequentially Excited Multiple Coils

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Published in 2024 at "Journal of Nondestructive Evaluation"

DOI: 10.1007/s10921-024-01072-x

Abstract: In the detection of corrosion under insulation (CUI) using pulsed eddy current testing (PECT) method, it is of great significance to reduce the footprint of the probe for improving the spatial resolution to local corrosion.… read more here.

Keywords: eddy current; method; probe footprint; footprint ... See more keywords

Characterization of defects on rail surface using eddy current technique

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Published in 2019 at "Journal of Mechanical Science and Technology"

DOI: 10.1007/s12206-019-0816-x

Abstract: In the present study, using eddy current technique (ECT), we explored two kinds of defects commonly found in railroad monitoring. The first one is cracks initiated on the surface of rail head which slowly progresses… read more here.

Keywords: current technique; surface; eddy current; using eddy ... See more keywords
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Study of eddy-current loss in the sleeves and Sm–Co magnets of a high-performance SMPM synchronous machine (10 kRPM, 60 kW)

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Published in 2017 at "Electric Power Systems Research"

DOI: 10.1016/j.epsr.2016.08.045

Abstract: Abstract The goal of this paper is to analyze and evaluate the eddy-current losses due to stator slotting in conductive and non-conductive retaining sleeves mounted on the rotor of a high-speed SMPMSM: 60 kW, 10 kRPM, designed… read more here.

Keywords: current loss; machine; study eddy; eddy current ... See more keywords
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Mitigation of the error field and eddy currents for the start-up of spherical tokamak using compensation and reverse coils

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Published in 2021 at "Fusion Engineering and Design"

DOI: 10.1016/j.fusengdes.2021.112807

Abstract: Abstract The tokamak is the most popularly accepted device among the fusion community for future fusion reactors. It has an assembly of toroidal field (TF), central solenoid (CS), poloidal field (PF) coils, and compensation coils… read more here.

Keywords: field; eddy currents; eddy current; reverse coils ... See more keywords