Device and method for detecting the number of revolutions of a rotatable shaft

摘要

An apparatus for detecting a number of revolutions of a rotatable shaft, is proposed, which apparatus encompasses a magnet disposed on the shaft, and a micromechanical device. A detection element of the micromechanical device, which element interacts with the magnet, is advanced stepwise upon each movement of the magnet past the micromechanical device in accordance with the movement direction of the magnet.

主权项

1. An apparatus for detecting a number of revolutions of a rotatable shaft, comprising:
a magnet disposed on the shaft; and a micromechanical device including a detection element that magnetically interacts with the magnet and is movable stepwise by the magnetic interaction upon each movement of the magnet past the micromechanical device in accordance with a movement direction of the magnet.