SENSOR FOR MEASURING THE MAGNETICALLY RESPONSIVE CHARACTERISTICS OF TOKENS

An improved magnetic field sensor for detecting tokens is disclosed which has one Hall effect sensor located between a magnet and an inclined token track base and another Hall effect sensor located between another magnet and the inclined token track base. The Hall effect sensors are placed at distan...

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Bibliographic Details
Main Authors JOHN VAN HORN, RALPH H. CARMEN
Format Patent
LanguageEnglish
Published 21.10.1991
Edition5
Subjects
CHECKING-DEVICES
COIN-FREED OR LIKE APPARATUS
FARE-REGISTERING APPARATUS
FRANKING APPARATUS
HANDLING OF COINS OR OF PAPER CURRENCY OR SIMILAR VALUABLEPAPERS, e.g. TESTING, SORTING BY DENOMINATIONS, COUNTING,DISPENSING, CHANGING OR DEPOSITING
PHYSICS
TICKET-ISSUING APPARATUS
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Summary:An improved magnetic field sensor for detecting tokens is disclosed which has one Hall effect sensor located between a magnet and an inclined token track base and another Hall effect sensor located between another magnet and the inclined token track base. The Hall effect sensors are placed at distances above the inclined token track base which optimize their accuracy in detecting tokens which have two concentric regions with different magnet characteristics.
Bibliography:Application Number: AU19910075591