Notch Fliters in Control Applications by Galil

There are some applications in which the standard tuning procedure using the PID filter of the controller cannot completely eliminate the resonance in a system. Resonance occurs when the natural frequency of a system is excited in a way that increases the amplitude of oscillation. This is usually due to system compliance, such as a mechanical coupling or inherent motor characteristics.

By Control Engineering Staff December 7, 2004

There are some applications in which the standard tuning procedure using the PID filter of the controller cannot completely eliminate the resonance in a system. Resonance occurs when the natural frequency of a system is excited in a way that increases the amplitude of oscillation. This is usually due to system compliance, such as a mechanical coupling or inherent motor characteristics.

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