• DOI:10.1109/TMAG.2014.2317150
Corpus ID: 23687198

Digital Feedback Control of the Flow-Induced Vibrations on the Head Gimbals Assembly in Hard Disk Drives: Design and Implementation

@article{Min2014DigitalFC,
  title={Digital Feedback Control of the Flow-Induced Vibrations on the Head Gimbals Assembly in Hard Disk Drives: Design and Implementation},
  author={H. Min and X. Huang and Qide Zhang},
  journal={IEEE Transactions on Magnetics},
  year={2014},
  volume={50},
  pages={1-6}
}

H. Min, X. Huang, Qide Zhang

Published 2014

Physics

IEEE Transactions on Magnetics

In this paper, a digital feedback control closed-loop is presented for active suppression of flow-induced vibrations on a head gimbals assembly (HGA) in a working hard disk drive (HDD). In this closed loop, a laser Doppler vibrometer was used to detect the flow-induced HGA off-plate vibration as feedback error signals, a digital controller was implemented to filter the feedback signals, and a piezoelectric disk stuck on the HDD cover inner surface was employed to actuate feedback acoustic… CONTINUE READING

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