Fig. 8From: Reduction of eddy current losses in inductive transmission systems with ferrite sheetsDependence of the self- and mutual inductances on the coil separation distance d for the air-cored coil system (a), the copper-layered coil system (b) and the double-layer ferrite-shielded coil system (c). Error bars indicate the measurement uncertainties. Please note the different scale in the center plot Back to article page