Apparatus and method for sensing angular displacement
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United States of America Patent
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-
Mar 12, 2002
Issued Date -
N/A
app pub date -
Apr 10, 2000
filing date -
Aug 18, 1998
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An apparatus and method for sensing angular displacement of a rotating object. A reference object is provided that maintains an independent angular reference. An angular displacement of the rotating object may be measured with respect to the reference object. The apparatus may include a turn sensor for measuring directional changes in the heading of the object, an angular compensator, and a servomotor for maintaining the turn sensor in a same angular position. The object may be a vehicle such as a boat, car, train, airplane or any other vehicle. The turn sensor is coupled to the servomotor that may be attached to a platform of the vehicle. As the vehicle rotates, the heading of the vehicle changes. The servomotor rotates the turn sensor housing to keep the sensor at the same angular position. The heading may be determined by measuring an angular difference between the position of the turn sensor in relation to the moving object.
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