Patent ID: 7800357

Claim:
A steering angle sensor for measuring a steering angle of a steering wheel mounted to a steering column, the steering column having an axis of rotation, the sensor comprising: a main rotor, said main rotor coupled to the steering column or to the steering wheel for synchronous rotation therewith about the steering column axis of rotation, said main rotor being disposed, structured and dimensioned to surround the steering column; at least one additional rotor disposed for rotation about the steering column axis of rotation, said additional rotor being disposed, structured and dimensioned to surround the steering column; a first scanning unit for scanning a rotational angular position of said main rotor; a second scanning unit for scanning a rotational angular position of said additional rotor; and at least one gear member cooperating between said main rotor and said additional rotor, said gear member being driven by said main rotor and driving said additional rotor, wherein an axis of rotation of said main rotor and an axis of rotation said additional rotor are mutually offset.