公开(公告)号：US11054488B2

公开(公告)日：2021-07-06

申请号：US16088094

申请日：2017-03-23

Applicant: GLORY LTD.

Inventor： Masafumi Chikamori ,  Seiji Morikawa ,  Daiki Yokoie

IPC: G01R33/028 ,  G07D5/08 ,  G01N27/72

Abstract: Provided is a magnetic detection device (100) having a simple configuration and being capable of stably detecting fine portions of a coin. The magnetic detection device (100) comprises an excitation coil (LX) that generates an alternating magnetic field in a transport path for transporting a coin in a first direction, and a plurality of detection coils (L1, L2) that are arranged at a predetermined pitch in a second direction and that output a detection signal based on an induction voltage caused by the alternating magnetic field. Each of the plurality of detection coils (L1, L2) outputs a detection signal on the basis of the induction voltage induced by the alternating magnetic field, which changes due to the coin being transported along the transportation path.

公开(公告)号：US11205315B2

公开(公告)日：2021-12-21

申请号：US16498453

申请日：2018-03-22

Applicant: GLORY LTD.

Inventor： Masafumi Chikamori ,  Seiji Morikawa ,  Daiki Yokoie ,  Ryo Hasegawa ,  Hidekazu Tanaka

IPC: G01R33/12 ,  G07D5/08

Abstract: A magnetism detection device capable of improving the ability to detect magnetic features of coins and reducing a change in outputs due to a change in transport positions of coins, a coin recognition device, and a method for detecting magnetism using the magnetism detection device. The magnetism detection device includes a transport path on which a coin is to be transported, detection coils arranged on at least one side of a transport surface of the transport path and along a direction crossing a transport direction of the coin, and a controller configured to detect a magnetic feature of the coin based on an output signal from at least one but not all of the detection coils.