Sensoranordnung

• Main Authors: Heyd, Jean-Francois, Springmann, Philipp
• Format: Patent
• Language: German
• Published: 29.08.2019
• Subjects: ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVEREDIN A SINGLE OTHER SUBCLASS; MEASURING; MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR; PHYSICS; TARIFF METERING APPARATUS; TESTING

The invention relates to a sensor arrangement for determining an angle position of a hollow cylindrical permanent magnet, comprising the permanent magnet and at least one first sensor; wherein end faces of the permanent magnet lie within an X-Y plane and a cylinder axis extends crosswise to the X-Y plane and coaxially to a rotation axis of the permanent magnet; wherein the permanent magnet has exactly two poles, which are arranged in the X-Y planes on opposite sides of the permanent magnet, such that the permanent magnet is diametrically magnetized; wherein a magnetic field of the permanent magnet has a magnetic flux, which can be represented at any position in the magnetic field by a vector; wherein the vector comprises a tangential magnetic field direction, a radial magnetic field direction and an axial magnetic field direction; wherein the tangential magnetic field direction extends parallel to the X-Y plane and parallel to the alignment of the poles; wherein the radial magnetic field direction extends parallel to the X-Y plane and crosswise to the alignment of the poles; wherein the axial magnetic field direction extends crosswise to the tangential magnetic field direction and the radial magnetic field direction; wherein a first sensor arranged in a stationary manner opposite the rotatable permanent magnet detects the magnetic field directions of the magnetic flux in the tangential magnetic field direction and the axial magnetic field direction in order to determine the angle position of the permanent magnet.