| CPC G01D 5/14 (2013.01) | 20 Claims |
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1. A sensor (9) for detecting an angle position on a path extending in a path direction (24) in a circumferential direction around a rotation axis (8), comprising:
a transmitter element (16) having a centrally arranged magnet (39) and two magnets arranged at ends in front of and behind the centrally arranged magnet (39), as seen in the path direction (24), the magnetic poles (35, 36) of the magnets (37, 39) being aligned transversely (22) with respect to the path direction (24) and being set up to emit a magnetic field (17) created by the transmitter element (16) which varies in the path direction (24),
a measurement transducer (18) which is arranged to output a measurement signal (20) which is dependent on the magnetic field (17) created by the transmitter element (16) arriving at the measurement transducer (18), the transmitter element (16) and the measurement transducer (18) being arranged so as to be movable with respect to one another in the path direction (24),
wherein the measurement transducer (18) is arranged overlapping and with an axial measurement distance to the transmitter element (16), and
an evaluation device (21) which is set up to output, based on the measurement signal (20), a sensor signal (19) which is dependent on the relative position between the measurement transducer (18) and the transmitter element (16),
wherein, viewed in the path direction (24), the centrally arranged magnet (39) is arranged to excite a greater magnetic flux than the magnets arranged at the ends, and
wherein the centrally arranged magnet (39) for exciting the larger magnetic flux is 30% to 60% larger than each of the magnets arranged at the ends.
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