MAGNETIC RING ENCODING DEVICE FOR COMPOSITE SIGNALS
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United States of America Patent
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Issued Date -
Sep 13, 2012
app pub date -
Mar 9, 2011
filing date -
Mar 9, 2011
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A magnetic ring encoding device for composite signals, which is disposed at an end of a rotary shaft of a rotary motor. The magnetic ring encoding device includes: a magnetic ring having a ring-shaped body section synchronously rotatable with the rotary shaft of the rotary motor, multiple magnetic poles being arranged on the body section at equal intervals; multiple Hall elements located and arranged around the body section at intervals, the Hall elements serving to sense magnetic field change that takes place when the magnetic poles pass through the Hall elements and output sensed signals according to the magnetic field change; and an adder for performing addition operation for the sensed signals output from the Hall elements.
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