Device For Compensating External Magnetic Stray Fields Or For Compensating The Influence Of A Magnetic Field Gradient On A Magnetic Field Sensor

摘要

A device compensates for the an influence of a magnetic field gradient which may be generated due to a component geometry of a component (1). The device includes at least two magnetic field sensors (17, 18) which are arranged outside of the magnetic balance of the ferromagnetic component (1). The at least two magnetic field sensors (17, 18) each have a differing sensitivity. One of the magnetic field sensors (17, 18) is exposed to the influence of the magnetic field gradient to a greater extent compared to the other magnetic field sensor due to its spatial arrangement relative to the ferromagnetic component (1). The one magnetic field sensor may have a sensitivity lower than the other magnetic field sensor.

主权项

1. A device for compensating an external magnetic stray field comprising:
at least two magnetic field sensors (17, 18), one of the magnetic field sensors (17, 18) being arranged to detect a higher strength of an external magnetic acting on a ferromagnetic component and having a sensitivity different from the other magnetic field sensor (17, 18).