Hall effect seat belt tension sensor

摘要

A hall effect seat belt tension sensor for a vehicle. The sensor has a housing mounted to a seat belt. An anchor plate is mounted between the seat belt and a fixed point on a vehicle. The anchor plate is partially mounted in housing. A spring is mounted between the housing and the anchor plate. Tension on the seat belt causes the anchor plate to move relative to the housing. A magnetic field generator is mounted to the anchor plate. The magnetic field generator moves as the anchor plate moves. A magnetic field sensor is mounted to the housing. The sensor generates an electrical signal in response to movement of the magnetic field generator.