Active Vibration Control as shown in this diagram involves design of suitable vibration sensors, processing of sensory data and then feeding back necessary signal to the actuators for vibration control.
![](images/diagram.gif)
In a more abstract way the same could be depicted by a block diagram as shown here.
![](images/fig3.9.gif)
Figure: Block diagram of AVC system
where, r – reference signal, e – error signal, s-variable in the frequency domain, H – Transfer function of the sensor, G – Transfer function of the vibrating system, d- disturbance, Gc - Transfer function of the controller and y – output/response of the system.
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