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2011-08-02

Calculation of the Mutual Inductance and the Magnetic Force Between a Thick Circular Coil of the Rectangular Cross Section and a Thin Wall Solenoid (Integro-Differential Approach)

By Slobodan Babic, Cevdet Akyel, Frederic Sirois, Guy Lemarquand, Romain Ravaud, and Valerie Lemarquand
Progress In Electromagnetics Research B, Vol. 33, 221-237, 2011
doi:10.2528/PIERB11062111

Abstract

Systems that employ stimulating and implantable monitoring devices utilize inductive links, such as external and implanted coils. The calculation of the mutual inductance and the magnetic force between these coils is important for optimizing power transfer. This paper deals with an efficient and new approach for determining the mutual inductance and the magnetic force between two coaxial coils in air. The setup is comprised of a thick circular coil of the rectangular cross section and a thin wall solenoid. We use an integro-differential approach to calculate these electrical parameters. The mutual inductance and the magnetic force are obtained using the complete elliptic integrals of the first and second kind, Heuman's Lambda function and one term that has to be solved numerically. All possible regular and singular cases were solved. The results of the presented work have been verified with the filament method and previously published data. The advantage of these proposed formulas for mutual inductance or for the magnetic force is that they give the solution in the analytical and the semi-analytical form either for regular cases or singular cases. It is not case with already known methods in which it is necessary to take particular care of these cases of consideration.

Citation


Slobodan Babic, Cevdet Akyel, Frederic Sirois, Guy Lemarquand, Romain Ravaud, and Valerie Lemarquand, "Calculation of the Mutual Inductance and the Magnetic Force Between a Thick Circular Coil of the Rectangular Cross Section and a Thin Wall Solenoid (Integro-Differential Approach)," Progress In Electromagnetics Research B, Vol. 33, 221-237, 2011.
doi:10.2528/PIERB11062111
http://www.jpier.org/PIERB/pier.php?paper=11062111

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