Wireless power transfer in fresh water using capacitive coupling

21 Feb 2019

Using underwater inspection robots to detect the early-stage deterioration of structures

A research team led by Associate Professor Masaya Tamura of the Department of Electrical and Electronic Information Engineering at Toyohashi University of Technology successfully achieved wireless power transfer in fresh water using capacitive coupling. In the field of wireless power transfer, it had been considered difficult to realize wireless power transfer in fresh water using capacitive coupling because fresh water behaves as a dielectric material with extremely high dielectric loss. In this research, the team elucidated the high-frequency properties of fresh water through experiments. The team also discovered the frequency band that enables power transfer with high efficiency using an electric field and an electrode structure that can realize this high efficiency.

Full text: Wireless power transfer in fresh water using capacitive coupling
TUT website: Press release