THROUGH THE HOLE ROTARY POSITION SENSOR

摘要

A rotary position sensor system (20) including a single ring magnet (22) with a central apperature (34). The central apperature is adapted to receive a rotating shaft (38). A pair of pole pieces (26, 28) that extend at least partially around the circular magnet. One or more magnetic flux sensor (30) are located adjacent to the pole pieces. An internal shunt ring (240) may be provided for undesirable magnetic flux influence through the rotational shaft. In order to shield the sensor from undesirable external magnetic flux influence, an optional external ring (27) and top (29) and bottom (31) shunt disks may be provided. The position sensor system is housed in a non-magnetic housing (32)