Share This Article:

The Electromagnetic Field Propagation in a Spherical Core

Abstract Full-Text HTML Download Download as PDF (Size:375KB) PP. 481-484
DOI: 10.4236/jemaa.2012.412067    4,406 Downloads   6,014 Views   Citations

ABSTRACT

A simple and explicit derivation for the electric and magnetic fields in the ferromagnetic cores has been studied. An improved model for analyzing the distribution of electric and magnetic fields in a toroidal core is given. This leads to a basis system for the theoretical analysis of iron loss in the magnetic cores, so, the theoretical results have been evaluated. A method is used to perform numeric calculations of the magnetic field produced by the eddy current and displacement current due to the electric field which shield the magnetic flux from the inner portion of the core cross section. The results obtained from this work could be used to evaluate the skin effect in the conductors of a winding.

Conflicts of Interest

The authors declare no conflicts of interest.

Cite this paper

O. Abo-Seid and G. Sami, "The Electromagnetic Field Propagation in a Spherical Core," Journal of Electromagnetic Analysis and Applications, Vol. 4 No. 12, 2012, pp. 481-484. doi: 10.4236/jemaa.2012.412067.

References

[1] H. Saotome and Y. Sakaki, “Iron Loss Analysis of Mn-Zn Ferrite Cores,” IEEE Transactions on Magnetics, Vol. 33, No. 1, 1997, pp. 728-734. doi:10.1109/20.560105
[2] C. F. Foo, D. M. Zhang and X. Li, “A Simple Approach for Determining Core—Loss of Magnetic Materials,” Journal of the Magnetics Society of Japan, Vol. 22, 1998, pp. 277-279.
[3] O. M. Abo-Seida and S. T. Bishay, “Response above a Plane-Conducting Earth to a Pulsed Vertical Magnetic Dipole at the Surface,” Canadian Journal of Physics, Vol. 78, No. 9, 2000, pp. 883-844. doi:10.1139/p00-050
[4] O. M. Abo-Seida and G. M. Sami, “Transient Fields of a Vertical Electric Dipole on an M-Layered Dielectric Medium,” Canadian Journal of Physics, Vol. 81, No. 6, 2003, p. 869.
[5] S. T. Bishay, O. M. Abo-Seida and G. M. Sami, “Transient Electromagnetic Field of a Vertical Magnetic Dipole on a Two-Layer Conducting Earth,” IEEE Transactions on Geoscience and Remote Sensing, Vol. 39, No. 4, 2001, pp. 894-897. doi:10.1109/36.917919
[6] S. T. Bishay and G. M. Sami, “Time-Domain Study of the Transient Fields for a Thin Circular Loop Antenna,” Canadian Journal of Physics, Vol. 80, No. 9, 2002, pp. 9551003. doi:10.1139/p02-049
[7] O. M. Abo-Seida, “Far-Field Due to a Vertical Magnetic Dipole in Sea,” Applied Electromagnetic Waves and Application, Vol. 20, No. 6, 2006, pp. 707-715.
[8] J. R. Wait, “EM Fields of a Phased Line Current over a Conducting Half-Space,” IEEE Electromagnetic Compatibility Society, Vol. 38, No. 4, 1996, pp. 608-611. doi:10.1109/15.544318
[9] G. R. Skutt and F. C. Lee, “Characterization of Dimensional Effects in Ferrite-Core Magnetic Devices,” IEEE Transactions on Magnetics, Vol. 2, 1996, pp. 1435-1440.
[10] Y. Sakaki, M. Yoshida and T. Sato, “Formula for Dynamic Power Loss in Ferrite Cores Taking into Account Displacement Current,” IEEE Transactions on Magnetics, Vol. 29, 1993, pp. 3517-3519. doi:10.1109/20.281215

  
comments powered by Disqus

Copyright © 2019 by authors and Scientific Research Publishing Inc.

Creative Commons License

This work and the related PDF file are licensed under a Creative Commons Attribution 4.0 International License.