Reducing seek time of tracking actuator with pulsed excitation in optical disk

Hyung Jun Lim, Chang Soo Han, Soo Hyun Kim, Yoon Keun Kwak

Research output: Contribution to conferencePaper

3 Citations (Scopus)

Abstract

The latency time, which is the residual vibration of a fine actuator and track eccentricity, has been the aim for direct pull-in in optical disk system. Modified velocity profiles of the coarse actuator and control inputs of the fine actuator have been proposed for the minimum residual vibration. Generally, there exists eccentricity due to mismatch of the disk center and the axis of a spindle motor. So, if a fine actuator is locked to the coarse actuator, another latency time must be need because of the track eccentricity. The track eccentricity can be estimated as the rotation type of the spindle motor changes from CLV to CAV. In this paper, the fine actuator is excited with the same velocity of the track and the track pull-in is executed without any latency.

Original languageEnglish
Pages1890-1895
Number of pages6
Publication statusPublished - 1999
Event1999 IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS'99): Human and Environment Friendly Robots whith High Intelligence and Emotional Quotients' - Kyongju, South Korea
Duration: 1999 Oct 171999 Oct 21

Other

Other1999 IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS'99): Human and Environment Friendly Robots whith High Intelligence and Emotional Quotients'
CityKyongju, South Korea
Period99/10/1799/10/21

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Software
  • Computer Vision and Pattern Recognition
  • Computer Science Applications

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  • Cite this

    Lim, H. J., Han, C. S., Kim, S. H., & Kwak, Y. K. (1999). Reducing seek time of tracking actuator with pulsed excitation in optical disk. 1890-1895. Paper presented at 1999 IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS'99): Human and Environment Friendly Robots whith High Intelligence and Emotional Quotients', Kyongju, South Korea, .