Device and method for discriminating a circular plate body such as a coin

摘要

A device for discriminating a circular plate body, which device comprises: a passage means adapted to guide and allow a circular plate body to orient vertically and fall naturally therewithin; a first coil means wound around the passage means; second and third core means each of which covers a respective opposing side of the first coil means; and second and third coil means, each wound around a respective one of said second and third core means.