| 摘要 |
The invention relates to a position sensor comprising a multipolar magnetic ring (2) provided, on the circumference thereof, with poles having opposite-sign polarities, the encoder comprising at least one marking area (Pi) having an angular width (Li) greater than the angular width of each alternating pole located outside said area on the circumference of the ring, characterized in that said marking area (Pi) comprises two contiguous singular poles (Ni, Si) having opposite-sign polarities placed within the continuity of pole alternation for the ring (2) and the angular width of which is greater than that of the poles located outside the marking area, the magnetization in the singular poles gradually changing in a continuous manner between the two ends of the marking area. |
