| 摘要 |
<p>The invention relates to a capacitive rotary sensor having a multi-turn function, a capacitive field being generated between a stator layer (14) of a stator and an eccentric rotor layer (12) of a rotor disc (6), the capacitive field varying when the rotor disc (6) is rotated by means of a shaft (1), the multi-turn function being detected by a Wiegand sensor which comprises a pulse generator (9) in the induction coil of which electrical voltages are induced when the at least one permanent magnet (5; 5a, 5b, 5c, 5d) passes by, the pulse generator (9) being disposed on a circuit board (7) which is rigid with the stator, and the at least one magnet (5; 5a, 5b, 5c, 5d) being disposed on a disc (4; 6) which rotates with the shaft (1). The aim of the invention is to equip a capacitive rotary sensor with a multi-turn device.</p> |
