Coin validator calibration

G - Physics – 07 – D

Patent

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G07D 5/08 (2006.01)

Patent

CA 2255632

A coin validator is calibrated by inserting a calibration key (K) different from coins to be validated in a static position in the validator such that eddy currents are induced in the key by operation of its sensor coils (C1, C2, C3) so as to produce a calibration value of signals from the sensor coils as a function of the individual characteristics of the validator. The calibrating value of the sensor signals may be compared with ensemble data concerning corresponding calibration values derived from an ensemble of coin validators of the same design.

On étalonne un appareil de validation de pièces de monnaie en introduisant dans l'appareil, en position statique, une clé d'étalonnage (K) autre que des pièces de monnaie à valider, de sorte que la mise en marche des bobines de détection (C1, C2, C3) de ladite clé induise dans celle-ci des courants tourbillonnaires. Une valeur d'étalonnage de signaux est ainsi produite par les bobines de détection en fonction des caractéristiques particulières de l'appareil de validation. La valeur d'étalonnage des signaux de détection peut être comparée avec des données d'ensemble concernant des valeurs d'étalonnage correspondantes provenant d'un ensemble d'appareils de validation de pièces de même conception.

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