Patent ID: 8324893
Filing Date: 2012-12-04
Classification: G01B,G01D

Abstract:
1. A measurement method, comprising: providing a plurality of magnetic field sensors that are arranged along a circular periphery and are each configured to emit a sensor signal as a function of a magnetic field intensity; providing a diametrically magnetized magnetic source that is seated rotatably on the circular periphery about an axis of rotation; receiving a first set of sensor signals from the plurality of magnetic field sensors; determining a first orientation of an axis, determined by a reference value transition, in relation to the plurality of magnetic sensors as a function of the first set of sensor signals; rotating the magnetic source about the axis of rotation; receiving a second set of sensor signals from the plurality of magnetic field sensors; determining a second orientation of the axis as a function of the second set of sensor signals; and determining a position of the axis of rotation in relation to the plurality of magnetic field sensors as a function of the first and second orientations.