Microsystem Technologies

, Volume 18, Issue 9–10, pp 1309–1317 | Cite as

Suppression of cross-track vibrations using a self-sensing micro-actuator in hard disk drives

  • Uwe Boettcher
  • Liane Matthes
  • Bernhard Knigge
  • Raymond A. de Callafon
  • Frank E. Talke
Technical Paper
First Online:
Received:
Accepted:

Abstract

In this study we utilize the self-sensing capabilities of piezoelectric micro-actuators in hard disk drives (HDD) to actively suppress in-plane resonance modes of the suspension in an HDD. The self-sensing circuit is based on a tunable capacitance bridge that decouples the control signal from the sensing signal in the micro-actuator. A hybrid modeling technique based on a realization algorithm and least-squares optimization for continuous-time systems is used to model the single-input dual-output system. An analog controller was computed using standard \(H_{\infty}\)-controller design tools and reduced in order using model reduction routines. Experimental implementation using analog filter design shows the effectiveness of the proposed method in reducing the main sway modes of the suspension.

Keywords

Active vibration damping Dual-stage actuator Self-sensing-circuit 
This is a preview of subscription content, log in to check access.

Notes

Acknowledgments

We would like to thank John Hogan of NHK International Corp. for his interest in this work and for help with identifying the resonance modes of the suspension.

References

  1. Adriaens HJMTS, De Koning WL, Banning R (2000) Modeling piezoelectric actuators. IEEE/ASME Trans Mechatron 5(4):331–341. doi: 10.1109/3516.891044 Google Scholar
  2. Baek S-E, Lee S-H (1999) Vibration rejection control for disk drives by acceleration feedforward control. In: Proceedings of the 38th IEEE conference on decision and control, vol 5, pp 5259–5262Google Scholar
  3. Boettcher U, De Callafon RA, Talke FE (2010) Modeling and control of a dual stage actuator hard disk drive. J Adv Mech Design Syst Manuf 4(1):107–118Google Scholar
  4. Chan KW, Liao WH, Shen IY (2008) Precision positioning of hard disk drives using piezoelectric actuators with passive damping. IEEE/ASME Trans Mechatron 13(1):147–151CrossRefGoogle Scholar
  5. Claes M, Graham MR, de Callafon RA (2007) Frequency domain subspace identification of a tape servo system. Microsyst Technol 13:1439–1447CrossRefGoogle Scholar
  6. Gopal (2008) Digital control and state variable method. 2nd edn. McGraw-Hill pvt ltd., India. ISBN: 9780070668805. http://books.google.com/books?id=Y1d02O6q4qoC
  7. Dosch JJ, Inman DJ, Garcia E (1992) A self-sensing piezoelectric actuator for collocated control. J Intell Mater Syst Struct 3:166–185Google Scholar
  8. Doyle JC, Glover K, Khargonekar P, Francis B (1989) State-space solutions to standard H2 and H control problems. IEEE Trans Autom Control 34(8):831–847MathSciNetMATHCrossRefGoogle Scholar
  9. Glover K, Doyle JC (1988) State-space formulae for all stabilizing controllers that satisfy an Hnorm bound and relations to risk sensitivity. Syst Control Lett 11:167–172MathSciNetMATHCrossRefGoogle Scholar
  10. Hara S (2010) Perspectives in mathematical system theory, control, and signal processing: a festschrift in honor of Yutaka Yamamoto on the occasion of his 60th birthday. In: Lecture notes in control and information sciences. Springer, Berlin, vol 398Google Scholar
  11. Horowitz R, Li Y, Oldham K, Kon S, Huang X (2007) Dual-stage servo systems and vibration compensation in computer hard disk drives. Control Eng Practice 15(3):291–305 (Selected Papers Presented at the Third IFAC Symposium on Mechatronic Systems (2004), Third IFAC Symposium on Mechatronic Systems)Google Scholar
  12. Hua W, Liu B, Yu S, Zhou W (2010) Contact recording review. Microsyst Technol 16:493–503CrossRefGoogle Scholar
  13. Huang F-Y, Semba T, Imaino W, Lee F (2001) Active damping in HDD actuator. IEEE Trans Magn 37(2):847–849CrossRefGoogle Scholar
  14. Huang X, Horowitz R, Li Y (2005) Track-following control with active vibration damping and compensation of a dual-stage servo system. Microsyst Technol 11(12):1276–1286CrossRefGoogle Scholar
  15. Jones L, Garcia E, Waites H (1994) Self-sensing control as applied to a PZT stack actuator used as a micropositioner. Smart Mater Struct 3(2):147–156CrossRefGoogle Scholar
  16. Kawamata A, Kadota Y, Hosaka H, Morita T (2008) Self-sensing piezoelectric actuator using, permittivity detection. Ferroelectrics 368:194–201CrossRefGoogle Scholar
  17. Kuiper S, Schitter G (2010) Active damping of a piezoelectric tube scanner using self-sensing piezo actuation. Mechatronics 20(6):656–665 (ISSN 0957–4158)Google Scholar
  18. Lee SJ, Sohn H (2006) Active self-sensing scheme development for structural health monitoring. Smart Mater Struct 15:1734Google Scholar
  19. Lee S-H, Chung CC, Lee CW (2006) Active high-frequency vibration rejection in hard disk drives. IEEE/ASME Trans Mechatron 11(3):339–345CrossRefGoogle Scholar
  20. Li Y, Marcassa F, Horowitz R, Oboe R, Evans R (2006) Track-following control with active vibration damping of a PZT-actuated suspension dual-stage servo system. J Dyn Sys Meas Control 128:568Google Scholar
  21. Liu B, Zhang MS, Yu SK, Hua W, Ma YS, Zhou WD, Gonzaga L, Man YJ (2009) Lube-surfing recording and its feasibility exploration. IEEE Trans Magn 45(2):899–904CrossRefGoogle Scholar
  22. Moheimani SOR (2003) A survey of recent innovations in vibration damping and control using shunted piezoelectric transducers. IEEE Trans Control Syst Technol 11(4):482–494CrossRefGoogle Scholar
  23. Pang CK, Guo G, Chen BM, Lee TH (2004) Nanoposition sensing and control in HDD dual-stage servo systems. IEEE Int Conf Control Appl 1:551–556Google Scholar
  24. Pang CK, Hong F, Wong WE, Lee TH (2010) Selfsensing actuation for piezoelectric and mems devices in data storage applications. In: DST-CONGoogle Scholar
  25. Safonov MG, Limebeer DJN, Chiang RY (1989) Simplifying the H theory via loop shifting, matrix pencil and descriptor concepts. Int J Contr 50(6):2467–2488MathSciNetMATHCrossRefGoogle Scholar
  26. Vakis AI, Sung-Chang Lee, Polycarpou AA (2009) Dynamic head-disk interface instabilities with friction for light contact (surfing) recording. IEEE Trans Magn 45(11):4966–4971CrossRefGoogle Scholar
  27. Varga A (1991) Balancing-free square-root algorithm for computing singular perturbed approximations. In: Proceedings of 30th IEEE CDC Brighton, UK, pp 1062–106Google Scholar
  28. Yu SK, Liu B, Zhou WD, Hua W, Gonzaga L (2009) Dynamic stability analysis for surfing head-disk interface. IEEE Trans Magn 45(11):4979–4983CrossRefGoogle Scholar
  29. Yuan Y, Du H, Wang S (2010) A miniature in-plane piezoresistive mems accelerometer for detection of slider off-track motion in hard disk drives. Microsyst Technol 16:931–940CrossRefGoogle Scholar
  30. Zheng J, Bogy D (2010) Investigation of flyingheight stability of thermal fly-height control sliders in lubricant or solid contact with roughness. Tribol Lett 38:283–289CrossRefGoogle Scholar

Copyright information

© Springer-Verlag 2012

Authors and Affiliations

  • Uwe Boettcher
    • 1
  • Liane Matthes
    • 1
  • Bernhard Knigge
    • 2
  • Raymond A. de Callafon
    • 1
  • Frank E. Talke
    • 1
  1. 1.Center for Magnetic Recording ResearchUniversity of California, San DiegoLa JollaUSA
  2. 2.Western Digital CorporationSan JoseUSA

Personalised recommendations