Precise multi-pole magnetic component
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United States of America Patent
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Feb 2, 2010
Grant Date -
Feb 23, 2006
app pub date -
Aug 5, 2005
filing date -
Sep 2, 2003
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A method is proposed to manufacture a precise multi-pole magnetic component for using in magnetic encoders. A special layout of the circuit pattern is designed and formed on a printed circuit board (PCB). Alternate and regular magnetic field is induced according to Ampere's law after a current flowing through the circuit on the PCB. The multi-pole magnetic component with fine magnetic pole pitch is achieved by forming the high-density circuit patterns on a substrate using the PCB technology.
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