Resonantly driven power toothbrush having a pressure-sensing capability using a hall effect sensor
Номер патента: EP2892387A1
Опубликовано: 15-07-2015
Автор(ы): Kevin Arnold MILLER
Принадлежит: Koninklijke Philips NV
Опубликовано: 15-07-2015
Автор(ы): Kevin Arnold MILLER
Принадлежит: Koninklijke Philips NV
Реферат: The toothbrush includes a handle portion which includes a power drive system (14) and further includes a brushhead assembly (20), which includes a brushhead arm having a brush element (21) at a distal end thereof A drive train assembly (12) is responsive to a drive signal from the power assembly for converting the action of the power assembly to a motion of the brushhead assembly. A magnet (30) is secured to the rear of the drive train, with a Hall effect sensor (32) mounted within the magnetic field produced by the magnet as the toothbrush moves in operation. Pressure on the brush element produces a phase shift of the Hall sensor output. A processor (15) determines the value of the phase shift of the Hall sensor signal as pressure is applied to the brush member and produces a signal indicative of the pressure applied by using stored information (71) which relates phase shift to pressure for the particular appliance.
Resonance driven electric tooth brush capable of responding to pressure using hall sensor
Номер патента: RU2635042C2. Автор: Кевин Арнольд МИЛЛЕР. Владелец: КОНИНКЛЕЙКЕ ФИЛИПС Н.В.. Дата публикации: 2017-11-08.