Position feedback system and method for use thereof
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United States of America Patent
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Sep 23, 2003
Grant Date -
N/A
app pub date -
Jun 2, 2000
filing date -
Apr 26, 1999
priority date (Note) -
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status (Latency Note)
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Abstract
The present invention is directed to a machine with a position feedback system and a method for use thereof. The machine includes at least one movable element mounted for movement on a path and at least one programmable controller. The machine further includes at least two absolute or magnetostrictive sensors or the machine includes an absolute sensor and a non-absolute sensor. The programmable controller uses positional information from the sensors to determine the position of the movable elements on the path and control the movable elements. The method includes determining a known position for the movable elements, linking at least two magnetostrictive sensors into one virtual sensor, and/or performing commutation alignment for the movable elements. Determining the position and commutation alignment can occur when the movable elements are stationary or moving.
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