CAPACITIVE ROTARY SENSOR, EVALUATION CIRCUIT, AND MOTOR VEHICLE ADJUSTING UNIT

摘要

Disclosed are a capacitive rotary sensor (1, 32), an evaluation circuit (23) for a rotary sensor (1, 32), a sensor system, and a motor vehicle adjusting unit. The capacitive rotary sensor (1, 32) comprises a rotating element (2) and a resting element (4) that is assigned to the rotating element (2). The rotating element (2) and the resting element (4) jointly embody a capacitor while the rotating element (2) is configured so as to change the capacitance during a rotation about the rotational shaft (5) thereof. In order to increase reliability, the rotating element (2) is fitted with at least two transmitter sections (9, 10) along the rotational shaft (5), each of said transmitter sections (9, 10) embodying a capacitor along with the resting element (4).