Sensor assembly and functional unit for detecting the position of a moveable magnet
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United States of America Patent
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Oct 17, 2006
Grant Date -
Jun 19, 2003
app pub date -
Dec 10, 2002
filing date -
Dec 11, 2001
priority date (Note) -
Expired
status (Latency Note)
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Abstract
In order to improve a sensor assembly for detecting the position of a magnet which is movable in relation to the sensor assembly, with a sensor housing, in which a sensor element sensitive to magnetic fields is arranged, it being possible to generate a digital output signal, the switching state of which is dependent on the relative position between the sensor element and the magnet, in such a way that it has an extended range of uses, the sensor element is provided with at least one field directing device of a magnetizable material which is arranged with respect to the sensor element, and varies in its geometrical dimensions transversely in relation to a direction of relative movement between the magnet and the sensor element, in such a way that an amplified analog sensor signal which characterizes the relative position between the sensor element and the magnet can be generated, at least in a specific relative positional range.
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