Characterization of Coupled Coil in Seawater for Wireless Power Transfer

Abstract : This report presents the electrical characterization of coupled electromagnetic coils in saltwater for an undersea wireless power transfer system. The resonant frequency of the system, as well as the separation gap between coils, was varied in both air and seawater to study the effects of saltwater on the energy transfer process. The results indicate that wireless power transfer can be achieved for in situ charging of unmanned vehicles in the ocean.