6533b871fe1ef96bd12d1903

RESEARCH PRODUCT

Exact solutions for the mutual inductance of circular coils and elliptic coils

John T. Conway

subject

PhysicsQuantitative Biology::BiomoleculesPhysics::Medical PhysicsMathematical analysisElectronic Optical and Magnetic MaterialsMagnetic fieldInductancesymbols.namesakeExact solutions in general relativityElectromagnetic coilStruve functionsymbolsElliptic integralElectrical and Electronic EngineeringCoaxialBessel function

description

An exact solution is presented for the mutual inductance between general noncoaxial thin circular and elliptic coils with parallel axes. The thin coil solution is given as an angular integral of an elliptic integral expression. In addition, for the coaxial case, an exact solution is given for the mutual inductance of a thick circular coil and a thick elliptic coil. The elliptic coil is such that the coil thickness is the same along both elliptic semi-axes. The thick coil solution is given as an integral of an expression involving Bessel and Struve functions. Extensive numerical results for sample geometries are given for both solutions, which are cross checked against each other in the limit as the thick coils become thin.

https://doi.org/10.1109/tmag.2011.2161768