Measurement probe and authentication device comprising the same

Details Measurement probe and authentication device comprising the same Measurement probe and authentication device comprising the same

G - Physics

01

R

G01R 33/14 (2006.01) G07D 7/04 (2006.01)

Patent

CA 2477575

The invention refers to a measurement probe for measuring magnetization data of at least one item (7), specifically a security document comprising at least one magnetic security material (M), said measurement probe comprising at least one core free magnetizing coil (3) characterized in that at least two magnetic field sensors (4s, 4c, 8s, 8c) are disposed at both ends inside said coil (3) at its both ends. The invention relates further to an authentication device comprising said measurement probe and to an authentication method carried out by means of said measurement probe and authentication device.

La présente invention concerne une sonde de mesure permettant de mesurer les données de magnétisation d'au moins un objet (7), plus particulièrement u document sécurisé comprenant au moins un matériau magnétique de sécurité (M). Cette sonde mesure comprend au moins un solénoïde de magnétisation dépourvu de noyau (3) caractérisé en ce qu'au moins deux détecteurs de champ magnétique (4s, 4c, 8s, 8c) sont disposés aux deux extrémités à l'intérieur dudit solénoïde (3) à ses deux extrémités. L'invention concerne également un dispositif d'authentification comprenant ladite sonde de mesure et un procédé d'authentification s'exécutant au moyen se cette sonde et de ce dispositif d'authentification.

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