scholarly journals Magnetic flux distribution in a ferromagnetic material magnetized by U-shaped electromagnets of different geometric dimensions types

2018 ◽  
Vol 145 ◽  
pp. 05002
Author(s):  
Anna Povolotskaya ◽  
Eduard Gorkunov ◽  
Pavel Nosov ◽  
Sergey Zadvorkin
Keyword(s):  
Magnetic Flux ◽  
Magnetic Induction ◽  
Model Experiment ◽  
Flux Distribution ◽  
Ferromagnetic Material ◽  
Geometrical Dimensions

A model experiment has been carried out on studying the type of changes in the magnetic induction in a homogeneous isotropic sample that is locally magnetized with attached U-type electromagnets of different geometrical dimensions. The study was aimed at finding out magnetic flux distribution at different locations within the sample and determining the effect that the geometry of attached electromagnets has on this distribution.

Research on expanding the range of reproduction of magnetic flux density of the DC field of the state primary standard GET12-2011

2020 ◽  
pp. 3-7
Author(s):  
Vladlen Ya. Shifrin ◽  
Denis I. Belyakov ◽  
Alexander E. Shilov ◽  
Denis D. Kosenko
Keyword(s):  
Magnetic Flux ◽  
Magnetic Induction ◽  
Frequency Conversion ◽  
Magnetic Measurements ◽  
Primary Standard ◽  
Uncertainty Budget ◽  
The State ◽  
State Primary Standard ◽  
Magnetic Flux Density ◽  
Constant Field

The results of works aimed at increasing the level of uniformity of measurements of the magnetic induction of a constant field – the basic value in the field of magnetic measurements. A set of equipment for reproducing a unit of magnetic induction of a constant field in the range of 1–25 mT was created and described. The inclusion of this complex in the State primary standard of units of magnetic induction, magnetic flux, magnetic moment and magnetic induction gradient GET 12-2011 will ensure the reproduction and direct transmission of the unit of permanent magnetic induction in the ranges of not only weak (10–3–1 mT), but medium (1–25 mT) and strong (0.025–1 T) magnetic fields. A quantum cesium magnetometer based on the resolved structure of cesium atoms was created to transmit the unit of magnetic induction to the region of medium fields. The procedure for calculating the frequency conversion coefficients to magnetic induction of the created quantum cesium magnetometer is described. The uncertainty budget for reproducing a unit of magnetic induction of a constant field using the created complex is estimated.

Magnetic Flux Analysis of E-Core Hybrid Excited FSM with Various Rotor-Pole Topologies

2014 ◽  
Vol 695 ◽  
pp. 774-777
Author(s):  
Siti Nur Umira Zakaria ◽  
Erwan Sulaiman
Keyword(s):  
Magnetic Flux ◽  
High Speed ◽  
Flux Distribution ◽  
Flux Analysis ◽  
Flux Linkage ◽  
Cogging Torque ◽  
Excitation Coil ◽  
Rotor Pole ◽  
Field Excitation ◽  
Flux Path

This paper presents magnetic flux analysis of E-Core Hybrid Excited FSM with various rotor pole topologies. The stator consists of three active fluxes sources namely armature coil, field excitation coil and permanent magnet, while the rotor consists of only stack of iron which is greatly reliable for high speed operation. Initially, coil arrangement tests are examined to validate the operating principle of the motor and to identify the zero rotor position. Then, performances of 6S-4P, 6S-5P, 6S-7P and 6S-8P E-Core HEFSMs such as flux path, flux linkage, cogging torque and flux distribution are observed. As conclusion, 6S-5P and 6S-7P designs have purely sinusoidal flux waveform and less cogging torque suitable for high torque and power motor.

scholarly journals Magnetic flux distribution in locally magnetized two-layer ferromagnetic objects

2015 ◽  
pp. 8-15
Author(s):  
V.N. Kostin ◽  
◽  
O.N. Vasilenko ◽  
A.M. Porseva ◽  
A.A. Kabakova ◽  
...  
Keyword(s):  
Magnetic Flux ◽  
Flux Distribution

Photospheric Flux Changes and the MHD Approximation

1984 ◽  
Vol 5 (4) ◽  
pp. 500-502 ◽  
Author(s):  
P. R. Wilson
Keyword(s):  
Magnetic Flux ◽  
Magnetic Induction ◽  
Closed Curve ◽  
Rate Of Change ◽  
Plasma Velocity ◽  
Magnetic Diffusivity

The rate of change of magnetic flux Ф contained within a closed curve C moving with the plasma velocity u, is given bywhere B is the magnetic induction and S is a surface bounded by the curve C. Using the hydromagnetic equation,where η is the magnetic diffusivity, this becomesIn many astrophysical contexts η is small and thus approximatelySince this implies that the flux within any moving closed curve does not change, the field is said to be ‘frozen into’ the plasma and moving with it.

Design Optimization of Magnetic Flux Distribution for PMG by Using Response Surface Methodology

2020 ◽  
Vol 56 (6) ◽  
pp. 1-9
Author(s):  
Aslan Deniz Karaoglan ◽  
Demet Gonen Ocaktan ◽  
Ali Oral ◽  
Deniz Perin
Keyword(s):  
Response Surface Methodology ◽  
Magnetic Flux ◽  
Design Optimization ◽  
Response Surface ◽  
Flux Distribution

Magnetic-flux distribution in a square Josephson-junction array with inductances

1995 ◽  
Vol 245 (1-2) ◽  
pp. 193-200 ◽  
Author(s):  
D. Reinel ◽  
W. Dieterich ◽  
A. Majhofer ◽  
T. Wolf
Keyword(s):  
Magnetic Flux ◽  
Josephson Junction ◽  
Flux Distribution ◽  
Josephson Junction Array ◽  
Junction Array
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