Long range rfid transponder

Details Long range rfid transponder Long range rfid transponder

G - Physics

08

B

G08B 13/14 (2006.01)

Patent

CA 2636371

A radio frequency identification device includes a piezo-electric crystal and a passive magnetic field sensor having magnetostrictive material. The sensor is responsive to a magnetic field to displace piezo-electric material to thereby generate electricity to power the device.

L'invention concerne un dispositif d'identification par radiofréquence qui inclut un cristal piézo-électrique et un détecteur de champ magnétique passif comprenant un matériau magnétostrictif. Le détecteur répond à un champ magnétique en déplaçant le matériau piézoélectrique produisant de ce fait de l'électricité destinée à alimenter le dispositif.

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