Electronic cancellation of DC motor noise
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
Jul 10, 2001
Grant Date -
N/A
app pub date -
Oct 18, 1996
filing date -
Sep 9, 1994
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An active attenuation system for a DC motor which yields global vibration reduction of slot or other motor induced tonals at the plate on which the motor is mounted without modifying the construction of the motor. The system comprises one or more vibration sensors, a signal synchronized to the slot rate or other motor induced tonal rate, an electronic adaptive controller and the means to supply the control signal into the motor field and/or armature current.
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