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HDD seeking acoustics analysis by a transfer function approach

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Abstract

A new approach to analyze HDD seeking acoustics is proposed. An acoustic transfer function was derived that has seeking current as input and seeking acoustics as response. The derivation and the advantage and limitation of this acoustic transfer function approach is discussed in details in this paper. HDD seeking acoustics is mainly determined by the seeking current spectrum and the mechanical design. The acoustics transfer function represents the mechanical design, and was used to diagnose trouble mechanical modes and to guide servo design to reduce specific seeking current frequency content. The acoustic transfer function approach also enables quick performance prediction of combination of different mechanical designs and seeking currents. Various HDDs with different seeking current profiles and mechanical designs were evaluated experimentally and numerically. Finally, a new seeking servo algorithm was evaluated, and good agreement was shown between the numerical prediction using the acoustics transfer function approach and the measured seeking acoustics.

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References

  • Acoustics determination of sound power levels of noise sources using sound pressure—Engineering method in an essentially free field over a reflecting plane, ISO 3744:1994, International Organization for Standardization, Geneva

  • Acoustics determination of sound power levels of noise sources using sound pressure—Engineering methods for small, movable sources in reverberant fields—Part 2: methods for special reverberation test rooms, ISO 3743-2:1994, International Organization for Standardization, Geneva

  • Acoustics measurement of airborne noise emitted by information technology and telecommunications equipment, ISO 7779:1999, International Organization for Standardization, Geneva

  • Declared noise emission values of information technology and telecommunications equipment, ECMA-109, 4th edition, December 1996, Ecma International, Geneva

  • Eric Baugh and Kent Green (2002) “Numerical and experimental investigations for hard disk drive sound power level measurements in hemi-anechoic rooms,” INTER-NOISE

  • Eric Baugh (2003) “Ariation of HDD sound quality metrics over a sound power microphone array,” NOISE-CON

  • Eric Baugh (2004) “Aspects of HDD tone measurements: sound power microphones as bystander positions and autocorrelation analysis,” NOISE-CON

  • Franklin GF, Powell JD, Workman ML (1990) “Digital control of dynamics systems”, 2nd edn. Addison–Wesley USA

  • Measurement of airborne noise emitted by information technology and telecommunications equipment, ECMA-74, 9th edition, December 2005, ECMA International, Geneva

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Authors and Affiliations

  1. San Jose Research Center, Hitachi Global Storage Technologies, 3403 Yerba Buena Road, San Jose, CA, 95135, USA

    Fu-Ying Huang, Satoshi Yamamoto, Eric Baugh & Tetsuo Semba

Authors
  1. Fu-Ying Huang
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  2. Satoshi Yamamoto
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  3. Eric Baugh
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  4. Tetsuo Semba
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Corresponding author

Correspondence to Fu-Ying Huang.

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Huang, FY., Yamamoto, S., Baugh, E. et al. HDD seeking acoustics analysis by a transfer function approach. Microsyst Technol 13, 849–857 (2007). https://doi.org/10.1007/s00542-006-0288-7

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  • DOI: https://doi.org/10.1007/s00542-006-0288-7

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