Changing amplitude of movement by changing the drive...

Details Changing amplitude of movement by changing the drive... Changing amplitude of movement by changing the drive...

A - Human Necessities

61

C

A61C 17/32 (2006.01) H02P 7/00 (2006.01)

Patent

CA 2549461

The drive system drives a brushhead at a driving frequency. The drive system includes a frequency modulation system which changes. the driving frequency about a center frequency in such a manner, with selected frequency deviation and modulation frequency, which interacts with the resonance of the brushhead to produce a change of amplitude in the movement of the brushhead within a range of 5-30%.

Ce système d'entraînement de la tête d'une brosse à dents à une fréquence d'entraînement comprend un système de modulation de la fréquence qui modifie la fréquence d'entraînement autour d'une fréquence centrale de façon à produire, avec une déviation sélectionnée de la fréquence et de la fréquence de modulation qui interagit avec la résonance de la tête de la brosse à dents, un changement de l'amplitude du mouvement de la tête de la brosse à dents dans une plage comprise entre 5 et 30 %.

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