Powered screwdriver has a shaft position detection system, with a transmitter coupled to the drive shaft by a belt drive and a sensor directly close to it

摘要

The powered screwdriver (1) has a system (9) to detect the angular position of the drive shaft (6), with a position transmitter (10) linked to the shaft and a position sensor (11) directly close to it. The position transmitter is powered by the shaft through a belt or toothed belt. The sensor is a magnetic field sensor.