Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.v.

Daniel Cichon

Philip Beran

The invention relates to an apparatus as well as a method for calibrating a magnetic sensor system including at least one magnetic field source and one magnetic field sensor arrangement with several individual magnetic field sensors. Here, a plurality of individual measurements is performed, wherein each individual measurement provides a number of measurement values depending on the number of the individual magnetic field sensors. The magnetic field of the magnetic field source is varied at the location of the magnetic field sensor arrangement between two successive individual measurements. Based on the measurement values and by applying an optimization or estimation method, one or several magnetic field sensor-specific parameters and/or magnetic field source-specific parameters are determined, which are used as correction values for calibrating the magnetic sensor system. According to the invention, a magnetic field source is used that generates an inhomogeneous magnetic field.

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Erlangen, Germany

Daniel Cichon