Magnetotherapy Device Induced Fields in Simplified Human Body Model

The paper deals with the analysis of induced current density and the induced electric field in the body of a human exposed to magnetic field of a magnetotherapy device. As the displacement currents at extremely low frequencies can be neglected, the biological tissues can be considered as a weakly conducting medium, facilitating the use of a quasi-static eddy current approximation. The formulation is based on the surface integral equation for the unknown surface charges, whose numerical solution is obtained using the method of moments technique. The numerical results are presented for various configurations of magnetotherapy coil device.