MAGNET-BASED ROTARY TRANSDUCER

摘要

The invention relates to a magnet-based rotary transducer comprising a first disk-type or ring-type structure and a second disk-type or ring-type structure which are oriented along an axis, extend along or parallel to a common plane, in a radial direction relative to said axis, are disposed at a distance from one another, and can be rotated relative to each other. The first structure encompasses at least two magnet poles that are used for generating a magnetic field and run perpendicular to the axis. The second structure is composed of at least two segments which are placed on a common plane, perpendicular to the axis, are made of a ferromagnetic material, and are used for conducting and concentrating a magnetic field generated by the first structure. Said segments define at least two material gaps in such a way that the local magnetic fields extending there are out of phase with each other. One respective magnetic field-sensitive sensor is positioned inside or near at least one of said two material gaps in order to measure the local magnetic field.