volume | PIER Journals

Abstract

Rotating coils constitute a type of electrical transformers used to produce alternating voltage pulses exploiting the phenomenon of electromagnetic induction. In this study, we investigate the influence of the electromagnetic scattering from a metallic obstacle located inside the moving component. In particular, a perfectly conducting spherical core is positioned eccentrically inside a thin circular ring, rotating around an arbitrary axis passing through its own center, under plane wave excitation. Methods and formulas implemented in scattering and induction problems have been utilized for the derivation of the developed potential difference around the loop. Several graphs of the voltage output versus the geometrical characteristics of the conguration, are shown and explained.

1. Vaseghi, B., N. Takorabet, and F. Meibody-Tabar, "Transient finite element analysis of induction machines with stator winding turn fault," Progress In Electromagnetics Research, Vol. 95, 1-18, 2009.
doi:10.2528/PIER09052004 Google Scholar

2. Sun, X. Y. and Z.-P. Nie, "Vector finite element analysis of multicomponent induction response in anisotropic formations," Progress In Electromagnetics Research, Vol. 81, 21-39, 2008.
doi:10.2528/PIER07121502 Google Scholar

3. Hwang, S. M., J. I. Hong, and C. S. Huh, "Characterization of the susceptibility of integrated circuits with induction caused by high power microwaves," Progress In Electromagnetics Research, Vol. 81, 61-72, 2008.
doi:10.2528/PIER07121704 Google Scholar

4. Nesterenko, M. V., D. Y. Penkin, V. A. Katrich, and V. M. Dakhov, "Equation solution for the current in radial impedance monopole on the perfectly conducting sphere," Progress In Electromagnetics Research B, Vol. 19, 95-114, 2010.
doi:10.2528/PIERB09111105 Google Scholar

5. Valagiannopoulos, C. A., "An overview of the Watson transforAn overview of the Watson transfor," Progress In Electromagnetics Research, Vol. 75, 137-152, 2007.
doi:10.2528/PIER07052502 Google Scholar

6. Alexopoulos, A., "Scattering cross section of a meta-sphere," Progress In Electromagnetics Research Letters, Vol. 9, 85-91, 2009.
doi:10.2528/PIERL09050601 Google Scholar

7. Valagiannopoulos, C. A., "Single-series solution to the radiation of loop antenna in the presence of a conducting sphere," Progress In Electromagnetics Research, Vol. 71, 277-294, 2007.
doi:10.2528/PIER07030803 Google Scholar

8. Coxeter, H. S. and S. L. Greitzer, Geometry Revisited, 8285, Mathematical Association of America, 1967.

9. Sadiku, M., Elements of Electromagnetics, 372, Oxford Series in Electrical and Computer Engineering, 2001.

10. Balanis, C. A., Advanced Engineering Electromagnetics, 924, John Wiley & Sons, 1989.

11. Wrede, R. C. and M. R. Spiegel, Advanced Calculus, 229-232, Schaumm's Outline Series, 2002.

12. Erma, V. A., "Exact solution for the scattering of electromagnetic waves from conductors of arbitrary shape. II. General case," Physical Review, 1544-1553, 1968.
doi:10.1103/PhysRev.176.1544 Google Scholar

13. Abramowitz, M. and I. A. Stegun, Handbook of Mathematical Functions, 437-438, National Bureau of Standards, 1970.

Prof. Constantinos Valagiannopoulos