Patent ID: 7141967
Filing Date: 2006-11-28
Classification: G01P,G01R

Abstract:
1. A sensor arrangement comprising at least two half bridges which are coupled together to form at least a Wheatstone bridge, which sensor arrangement comprises at least two magnetoresistive sensor elements in each half bridge, said sensor elements being sensitive along a measuring direction to the magnetic field strength of an applied magnetic field and having a current flow through said sensor elements oriented parallel to the measuring direction, said sensor elements being adapted to supply a measuring signal in dependence upon a field component of the magnetic field, denoted as measuring field and measured in the measuring direction, at least two of the sensor elements in each half bridge comprising barberpole structures having a mutually different alignment, and the co-ordinates of the sensor elements of at least one of the half bridges and the coordinates of the sensor elements of at least another one of the half bridges being deliberately selected to be different to a predetermined extent along an axis of co-ordinates extending in the measuring direction in order to substantially eliminate an influence of unwanted external magnetic fields on an output signal of the sensor element.