Patent ID: 9601271
Date: 2017-03-21
CPC Classifications: G01V,H01F,H02J

Claim:
1. A detecting device comprising: a measurement coil made up of a first partial coil to which current in a particular direction is induced by a magnetic field to be supplied to a power reception coil configured to receive power, a second partial coil to which the current in the particular direction is induced by the magnetic field, and a third partial coil, which is disposed between the first and second partial coils, to which current in the opposite direction of the particular direction is induced by the magnetic field; a measurement unit configured to measure the voltage of the measurement coil as measurement coil voltage; and a foreign object detecting unit configured to detect a foreign object within the magnetic field based on the measurement coil voltage, wherein the area of each coil surface of the first partial coil, the second partial coil, and the third partial coil differs, wherein two coils of the first partial coil, the second partial coil, and the third partial coil are disposed in a position sandwiching the middle of the outermost edge and the innermost edge of the power reception coil.