An Homogenised FEM Model to Predict the Stray Magnetic Field Created by Faulty Electrical Machines

2006 ◽  
Author(s):  
Viet Phuong Bui ◽  
O. Chadebec ◽  
L.-L. Rouve ◽  
J.-L. Coulomb
Keyword(s):  
Magnetic Field ◽  
Electrical Machines ◽  
Fem Model ◽  
Stray Magnetic Field

Analysis of Cogging Torque of PM Motor with Radial Magnetic Field and Parallel Magnetic Field

2011 ◽  
Vol 105-107 ◽  
pp. 2289-2294
Author(s):  
Jun Qiang Lian ◽  
Shun Yi Xie ◽  
Jian Wang
Keyword(s):  
Magnetic Field ◽  
Air Gap ◽  
Analytic Method ◽  
Analytic Model ◽  
Parallel Magnetic Field ◽  
Radial Magnetic Field ◽  
Fem Model ◽  
Cogging Torque ◽  
Fem Method

This paper provide two methods to analyze the cogging torque of PM motor with radial magnetic field and parallel magnetic field, FEM method and Analytic method. The FEM model and Analytic model of PM motor with radial magnetic field and parallel magnetic field are founded. We analyze the model in both methods. From the result of analysis. The air-gap magnetic density of PM motor can be analyzed. We can find the cogging torque of radial magnetic field PM motor is much heavily than the cogging torque of parallel magnetic field PM motor. The result of Analytic method is close to the result of FEM method. The Analytic method is useful in analyze the cogging torque of PM motor.

Optogenetic brain neuromodulation by stray magnetic field via flash-enhanced magneto-mechano-triboelectric nanogenerator

Nano Energy ◽  
2020 ◽  
Vol 75 ◽  
pp. 104951 ◽  
Author(s):  
Han Eol Lee ◽  
Jung Hwan Park ◽  
Dahee Jang ◽  
Jung Ho Shin ◽  
Tae Hong Im ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Triboelectric Nanogenerator ◽  
Stray Magnetic Field

Design of Plane Magnetic Field Image Drawing System Based on PLC Motion Control

2014 ◽  
Vol 525 ◽  
pp. 282-286
Author(s):  
Jia Xin You ◽  
Hui Min Liang ◽  
Kun Zhang ◽  
Guo Fu Zhai
Keyword(s):  
Magnetic Field ◽  
Permanent Magnet ◽  
Motion Control ◽  
Fem Simulation ◽  
Servo Control ◽  
Programmable Logic ◽  
Magnetic Powder ◽  
Fem Model ◽  
Drawing System ◽  
The Magnetic Field

The image of magnetic field is traditionally obtained by spreading magnetic powder manually or by sparse arrays of magnetic needles, obtaining the images of the magnetic field in different permanent magnet shapes and do repeated tests on the permanent magnet are in need. Based on programmable logic controller (PLC) motion control, the servo control and mechanical system have been built, the control strategy is discussed and the software is programmed. 2D FEM model of a test permanent magnet bar is built. Compared with the FEM simulation results, the system has achieved the goal that spreading magnetic powder quickly and evenly in the appointed area.

scholarly journals Influence of a stray magnetic field on the measurement of long-range spin-spin interaction

2018 ◽  
Vol 2 (5) ◽  
pp. 055025
Author(s):  
Biplab Goswami ◽  
Andrey V Volotka ◽  
Stephan Fritzsche
Keyword(s):  
Magnetic Field ◽  
Long Range ◽  
Spin Interaction ◽  
Stray Magnetic Field
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