Magnetic Induction of Spherical and Prolate Spheroidal Bodies with Infinitesimally Thin Current Bands Having a Common Axis of Symmetry and in a Uniform Inducing Field. A Summary

1982 ◽  
Author(s):  
Jr. Baker ◽  
Brown F. E. ◽  
Samuel H.
Keyword(s):  
Magnetic Induction ◽  
Prolate Spheroidal ◽  
Common Axis ◽  
Axis Of Symmetry

scholarly journals XII. On Stokes’s current function

1891 ◽  
Vol 182 ◽  
pp. 449-518 ◽  
Keyword(s):  
Velocity Potential ◽  
Zonal Harmonic ◽  
Current Function ◽  
Common Axis ◽  
Zonal Harmonics ◽  
Electricity And Magnetism ◽  
Irrotational Motion ◽  
Axis Of Symmetry

In Maxwell’s ‘Electricity and Magnetism’ a view is put forward, in accordance with which we may regard any irrotational motion in a perfect liquid, for which the velocity potential is a solid zonal harmonic, as due to the juxtaposition at the origin, and upon the axis of symmetry, of sinks and sources. But, in a liquid, any irrotational motion which is symmetrical with respect to an axis gives a velocity potential which may be expressed as a sum of a series of solid zonal harmonics, their common axis being the axis of symmetry, and their origin arbitrary, provided it is excluded from the region to which the expressions apply. The position of the origin upon the axis is arbitrary, since, by a transference formula, we may pass from one origin to another.

Interaction of Two Vortex Rings Moving along a Common Axis of Symmetry

1975 ◽  
Vol 38 (4) ◽  
pp. 1159-1166 ◽  
Author(s):  
Yuko Oshima ◽  
Tsutomu Kambe ◽  
Saburo Asaka
Keyword(s):  
Vortex Rings ◽  
Common Axis ◽  
Axis Of Symmetry

scholarly journals V. On Stokes's current function

1891 ◽  
Vol 49 (296-301) ◽  
pp. 46-53 ◽  
Keyword(s):  
Velocity Potential ◽  
Zonal Harmonic ◽  
Current Function ◽  
Common Axis ◽  
Electricity And Magnetism ◽  
Irrotational Motion ◽  
Axis Of Symmetry

In Maxwell’s ‘Electricity and Magnetism,’ a view is put forward, in accordance with which we may regard any irrotational motion in a perfect liquid, for which the velocity potential is a solid zonal harmonic, as due to the juxtaposition at the origin, and upon the axis of symmetry, of sinks and sources. But, in a liquid, any irrotational motion which is symmetrical with respect to an axis gives a velocity potential which may be expressed as a sum of a series of solid zonal harm onics, their common axis being the axis of symmetry, and their origin arbitrary, provided it is excluded from the region to which the expressions apply.

Analysis of magneto rheological elastomers for energy harvesting systems

2020 ◽  
Vol 64 (1-4) ◽  
pp. 439-446
Author(s):  
Gildas Diguet ◽  
Gael Sebald ◽  
Masami Nakano ◽  
Mickaël Lallart ◽  
Jean-Yves Cavaillé
Keyword(s):  
Magnetic Field ◽  
Energy Harvesting ◽  
Shear Strain ◽  
Magnetic Induction ◽  
Magnetic Particles ◽  
Homogeneous Magnetic Field ◽  
Electrical Signal ◽  
Harvesting Systems ◽  
Dc Bias ◽  
Magneto Rheological

Magneto Rheological Elastomers (MREs) are composite materials based on an elastomer filled by magnetic particles. Anisotropic MRE can be easily manufactured by curing the material under homogeneous magnetic field which creates column of particles. The magnetic and elastic properties are actually coupled making these MREs suitable for energy conversion. From these remarkable properties, an energy harvesting device is considered through the application of a DC bias magnetic induction on two MREs as a metal piece is applying an AC shear strain on them. Such strain therefore changes the permeabilities of the elastomers, hence generating an AC magnetic induction which can be converted into AC electrical signal with the help of a coil. The device is simulated with a Finite Element Method software to examine the effect of the MRE parameters, the DC bias magnetic induction and applied shear strain (amplitude and frequency) on the resulting electrical signal.

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.

Inspection of defects in CFRP by improved magnetic induction tomography

2019 ◽  
Vol 61 (3) ◽  
pp. 255-259
Author(s):  
Lipan Zhang ◽  
Qifeng Meng ◽  
Kai Song ◽  
Ming Gao ◽  
Zhiyuan Cheng
Keyword(s):  
Magnetic Induction ◽  
Magnetic Induction Tomography
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