Position sensing device and method
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United States of America Patent
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Oct 27, 2009
Grant Date -
Jan 26, 2006
app pub date -
Jul 21, 2004
filing date -
Jul 21, 2004
priority date (Note) -
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Abstract
A field-altering device for an inductive sensor has an elongated body with a substantially saw-tooth profile. The body is made of steel or other type ferrous material. With use in a Hall-effect sensor, the body moves relative to the sensor causing the field to vary periodically with time. The sensor generates an electrical signal in dependence on the field variations, the electrical signal having a saw-tooth pattern.
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