Title:
Magnetic quality discrimination device and magnetic quality discrimination method
Document Type and Number:
Japanese Patent JP6301709
Kind Code:
B2
Abstract:
A magnetic property determination apparatus that determines the magnetic materials on a paper sheet transported through a transport path includes a magnetization unit and a magnetic detection unit. The magnetization unit generates a magnetization magnetic field including a first magnetic field region and a second magnetic field region on the transport path. A magnetic field intensity and a magnetic field direction are set different between the first magnetic field region and the second magnetic field region so that the magnetic materials are magnetized in different magnetization directions depending on coercive forces of the magnetic materials. The magnetic detection unit that generates a bias magnetic field on the transport path downstream in a transport direction of the magnetization unit, and that detects a magnetic charge of the magnetic materials by detecting variations of the bias magnetic field.
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Inventors:
Naoki Ueyama
Application Number:
JP2014080253A
Publication Date:
March 28, 2018
Filing Date:
April 09, 2014
Export Citation:
Assignee:
Glory Ltd.
International Classes:
G07D7/04; G01R33/02
Domestic Patent References:
| JP6180304A | ||||
| JP3248895A |
Foreign References:
| WO2010052797A1 |
Attorney, Agent or Firm:
Shiro Nakatsuji
Junichi Suwa
Junichi Suwa
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