Experimental Study on Over 10 Meters Magnetic Resonance Wireless Power Transfer under Sea with Coils

It is difficult to power the object wirelessly under the sea because sea has the property of high conductivity [1]. We study on electromagnetic field in lossy media. We make experiments on magnetic resonance wireless power transfer system with multiple coils which are sunk into sea completely and measure the parameters of coils, coupling coefficient, efficiency and wattage. As a result, we confirm over 10 metric wireless power transfer under sea.