▎ 摘　　要

NOVELTY - The transducer has a rotatable bar provided with a rotation axis to rotate the rotatable bar. A first magnet provides a first magnetic field from a first side of the rotatable bar to a second side of the rotatable bar. The first magnet is connected to the rotatable bar at a first axial location such that the first magnet rotates with the first axial location of the rotatable bar. A first graphene hall sensor assembly is fixed between the rotatable bar and the first magnet such that the graphene hall sensor assembly is fixed in the first magnetic field adjacent to a first axial location of the rotatable bar. The first magnet generates a first electrical potential in the first graphene hall sensor assembly, where the first electrical potential is an indicative of a rotation angle of the rotatable bar relative to the first graphene hall sensor assembly and an axial portion is formed as cylindrical-shaped structure. USE - Transducer for torque sensor of vehicle (all claimed). ADVANTAGE - The transducer improves accuracy of the measuring rotation and the measuring torque, and combines output of the first and second graphene hall sensors for improving the sufficient accuracy of the angular position. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a torque sensor. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of a graphene sheet for transducer. 100Graphene sheet 180Axle 350Magnetic field lines