| 摘要 |
An arrangement for detecting the angular position, the angular speed and the direction of rotation of an axis of a rotating body with teeth (1,3), such as a flywheel in an internal combustion engine. The arrangement comprises at least two sensors (2a,2b) that are arranged next to each other, one of them (2a) somewhat behind the other (2b) with respect to the direction of rotation and furthermore displaced also in an axial direction, in order to give phase-displaced pulses when the respective teeth (1,3) on the rotating body pass them. One part of one tooth (3) has been removed such that the sensor (2a) that is arranged to detect the area corresponding to exactly this part gives a reference pulse when this tooth passes. The phase shifted pulses allow detection of speed and direction, the arrangement comprises two trades of encoding elements and two signal channels. <IMAGE> |
