3. Major technological options

3.1 Actuators

All the possible design principles summarized in [R 3 140] are potentially applicable to the construction of actuators for active vibration control, as is the implementation logic [R 3 140] . In practice, only technologies that guarantee both :

• perfect module and phase control of the control effort;

• minimization of control signal distortions ;

• the reliability required for embedded systems;

• technological maturity and suitability for mass production;

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