Patent ID: 6510750
Filing Date: 2003-01-28
Classification: B62D,G01L

Abstract:
A torque sensor for measuring the torque applied to a first and a second shaft the first and second shafts connected by a torsion bar, the sensor, comprising:a) a housing having apertures at each end thereof, the shafts passing through the housing; b) a rotor, located in the housing and connected to the first shaft, the rotor having a top surface, a bottom surface and a side surface, the rotor further having a first and second contactor located on the bottom surface and a first and second conductive track located on the side surface, the conductive tracks in electrical contact with the first and second contactors; c) a rotating disc connected to the second shaft, the disc having a top surface and a bottom surface; d) a first and second resistive track disposed on the top surface of the disc, the first and second contactor contacting the resistive tracks; e) a third and fourth contactor located in the housing and in electrical contact with the conductive tracks; and f) a first and second electrical terminal located in the housing and electrically communicated with the third and fourth contactors for providing an electrical signal indicative of the torque on the shafts to an external electrical circuit.