Patent ID: 9062989
Filing Date: 2015-06-23
Classification: G01D

Abstract:
1. A magnetic field sensor arrangement comprising: a reference component configured to influence a magnetic field as a function of a position of the reference component, the reference component having an axis of rotation; a first magnetic sensor aligned with a first magnetic field sensitivity direction and configured to exhibit an electrical response to the presence of the magnetic field; and a second magnetic sensor aligned with a second magnetic field sensitivity direction and configured to exhibit an electrical response to the presence of the magnetic field, the first and second magnetic field sensitivity directions being offset from one another to provide respective electrical responses that, when combined, facilitate detection of magnetic fields at different relative alignments between the reference component and the first and second magnetic sensors; and a processor circuit connected to receive the electrical responses of the sensors, to process the responses to determine an orientation of the magnetic field relative to at least one of the sensors, and to combine the electrical responses based upon the determined orientation of the magnetic field to provide a combined response indicative of rotation of the reference component about the axis of rotation that is independent of alignment between the axis of rotation and the sensors.