Improved gap control system using a disturbance observer for near-field recording

Japanese Journal of Applied Physics

Volumn 47, Issue 7 PART 2, 2008, Pages 5947-5952

  Kim, Jung Gon ^a   Kang, Min Seok ^a   Kwon, Tea Wook ^a   Jeong, Jun ^b   Park, No Cheol ^a   Yang, Hyun Seok ^a   Park, Young Pil ^a  

^a Yonsei University   (South Korea)

^b Dongyang University   (South Korea)

Author keywords

Disturbance observer (DOB); External shock; Gap error signal (GES); Mode switching servo; Near field recording (NFR); Overshoot; Solid immersion lens (SIL)

Indexed keywords

CONTROL SYSTEMS; CONTROL THEORY; DATA STORAGE EQUIPMENT; DISKS (MACHINE COMPONENTS); DISKS (STRUCTURAL COMPONENTS); DISTURBANCE REJECTION; GALLIUM ALLOYS; LENSES; OBSERVABILITY; OPTICAL DATA PROCESSING; OPTICAL DEVICES; OPTICAL DISK STORAGE; OPTICAL INSTRUMENTS; OPTICAL RECORDING; OPTICAL WAVEGUIDES; POWER CONTROL; RADIOACTIVE MATERIALS; ROTATING DISKS; TEMPERATURE CONTROL;

DISTURBANCE OBSERVER (DOB); EXTERNAL SHOCK; GAP ERROR SIGNAL (GES); MODE-SWITCHING SERVO; NEAR-FIELD RECORDING (NFR); OVERSHOOT; SOLID IMMERSION LENS (SIL);

OPTICAL DATA STORAGE;

EID: 55249108717     PISSN: 00214922     EISSN: 13474065     Source Type: Journal    
DOI: 10.1143/JJAP.47.5947     Document Type: Article

References (10)

1. T. Ishimoto, T. Matsui, S. Kim, K. Saito, K. Takagi, S. Haga, A. Nakaoki, and M. Yamamoto: Proc, SPIE 6282 (2006) 62820C,
2. F. Zijp, J. I. Lee, J. van den Eerenbeemd, C. Verschuren, and D. M. Bruls: Jpn. J. Appl, Phys. 45 (2006) 1336.
3. J. van den Eerenbeemd, D. M. Bruls, C. Verschuren, B. Yin, and F. Zijp: Jpn, J, Appl, Phys. 46 (2007) 3894.
4. T. Ishimoto, K. Saito, M. Shinoda, T. Kondo, A. Nakaoki, and M. Yamamoto: Jpn. J. Appl. Phys. 42 (2003) 2719.
5. J. I. Lee, M. A. H. van der Aa, C. A. Verschuren, F. Zijp, and M. B. van der Mark: Jpn. J. Appl. Phys. 44 (2005) 3423.
6. J. G. Kim, T. H. Kim, H. Choi, Y. J. Yoon. J. Jeong, N. C. Park, H. S. Yang, and Y. P. Park: Tech. Dig. ISPS07, 2007.
7. F. Zijp, M. van der Mark, C. Verschuren, J. I. Lee, J. van den Eerenbeemd, P. Urbach, and M. van der Aa: IEEE Trans. Magn. 41 (2005) 1042.
8. Y. J. Yoon, S. H. Kim. W. S. Seol, J. G. Kim. N. C. Park, and H. S. Yang: Jpn. J. Appl. Phys. 46 (2007) 3997.
9. K. Yamada, S. Komada, M. Ishida, and T. Hori: Electr. Eng. Jpn. 128 (1999) No. 1, 37.
10. K. Fujiyama, R. Katayama, T. Hamaguchi, and K. Kawakami: Proc. Advanced Motion Control, 2000, p. 141.