Integrated commutator and slip-ring with sense magnet
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United States of America Patent
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app pub date -
Jan 17, 2003
filing date -
Aug 17, 2001
priority date (Note) -
Abandoned
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Abstract
A motor slip-ring is equipped with a magnet for inclusion in a sensor assembly for detecting and diagnosing motor inefficiencies and problems as well as in adjusting motor parameters to impact motor operation. The slip-ring comprises a shell, an insulating core positioned adjacent the shell, and at least one magnet positioned adjacent the core. Magnetic sensors placed within the motor housing detect and read the flux lines emitted from the magnet on the slip-ring. The magnet is preferably chemically bonded with the slip-ring, thereby facilitating its retention in the motor housing, and is preferably manufactured from an electrically non-conductive material and therefore does not impact, in and of itself, the operation of the motor.
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