Method and apparatus for sorting coins

Details Method and apparatus for sorting coins Method and apparatus for sorting coins

G - Physics

07

D

209/29, 341/50,

G07D 5/08 (2006.01) G07D 3/00 (2006.01)

Patent

CA 1332965

A coin to be judged is passed near an oscillation coil excited by an exciting signal containing a plurality of harmonic components, that is nonsinusoidal alternating current, and the coin is sorted in accordance with a signal produced by a receiving coil electromagnetically coupled with the oscillation coil and containing at least two harmonic components. The signal induced in the receiving coil may be a composite signal of at least two harmonic components. This signal may consist of a first signal of a composite of at least two harmonic components and a second signal of a composite of at least two other harmonic components.

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