Vibration Control Above the Nyquist Frequency in Hard Disk Drives

In conventional hard disk drives, a control system compensates for the mechanical resonance above the Nyquist frequency by using sampled-data control theories or multirate control techniques. However, such a control system can only avoid instability and cannot suppress disturbances above the Nyquist...

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Veröffentlicht in:	IEEE transactions on industrial electronics (1982) 2008-10, Vol.55 (10), p.3751-3757
Hauptverfasser:	Atsumi, T., Okuyama, A., Nakagawa, S.
Format:	Artikel
Sprache:	eng
Schlagworte:	Control systems Control systems design Control theory Digital Digital control Disk drives Disturbances Electric variables control Frequency Gain Hard disk drive Hard disks Magnetic heads Magnetic variables control Mathematical analysis motion control Nyquist frequencies Resonance Vibration control
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