Electronic cancellation of d.c. motor noise

Details Electronic cancellation of d.c. motor noise Electronic cancellation of d.c. motor noise

G - Physics

10

K

G10K 11/16 (2006.01) H02K 5/24 (2006.01)

Patent

CA 2132191

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 inject the control signal into the motor field and/or armature current.

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