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AssigneeNorthern Digital Inc.
InventorsPaul G. Seiler, Ralph K. Muench, Stefan R. Kirsch
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The invention relates to a method for determining the position of a sensor element (300), according to which a magnetic alternating field (210) emitted by at least one field generating unit (200) is measured. The position of the sensor element (300) is determined on the basis of a signal received in the sensor element (300). The inventive method is further characterized in that interference fields (410) are calculated, preferably to a first approximation, said interference fields being caused by eddy currents (420) produced in electrically conductive objects (400). The position that can be determined on the basis of the signal received in the sensor element (300) is corrected on the basis of the calculated interference fields (410).
A method for determining the position of a sensor element (300), which is used to measure a magnetic alternating field (210) emitted by at least one generator unit (200), with the position of the sensor element (300) being determined based on a signal received in the sensor element (300), characterized in that
The method according to one of the foregoing claims, characterized in that the position and shape of the objects (400) are determined, and resistances in the object (400) are calculated according to the equation
The method according to one of the foregoing claims, characterized in that the following procedure is followed for determining the eddy currents:
Dependencies are inferred from the claim text.