Device and method for determining the relative positions of two coupled shafts to each other

摘要

The device has an analysis unit (30) that determines angle-of-rotation position, angular velocity and angular acceleration of shafts (10,12) in measured positions from the sensor data showing angle of rotation of shafts. Analysis unit analyzes quality of sensor data, based on difference between impingement positions of a light beam bundle (22) on detection area (24,26). Analysis unit analyzes quality rating of sensor data to exclude measured position data and to consider only reduced weighting data for determining the shaft offset, when quality rating lies below threshold value.