Dynamic Analysis of a 3-Axis Ultra-Slim Actuator for Optical Disc Drives

광디스크 드라이브용 3축 초박형 액추에이터의 동특성 분석

  • 김세원 (한국기술교육대학교 대학원 메카트로닉스공학과) ;
  • 조태민 (한국기술교육대학교 대학원 메카트로닉스공학과) ;
  • 이주형 ((주)Optis) ;
  • 진경복 (한국기술교육대학교 메카트로닉스공학부) ;
  • 임경화 (한국기술교육대학교 메카트로닉스공학부)
  • Published : 2005.04.01


A note-book PC has become thinner in recent years, which requires the optical disc drives with small height and high memory capacity. Therefore the actuator of optical disc drives must be thinner and have disc tilt compensation function for high density memory. In this paper, the actuator with hybrid type is investigated for 3-axis ultra-slim actuator. A 3-axis ultra-slim actuator is designed by using the modal analysis of the actuator and the electromagnetic analysis of magnetic circuit to achieve dynamic characteristics. Also, magnetic force between tilt magnet and tilt yoke is investigated to and the influence on the DC sensitivity in the focus and track directions.


3-Axis Ultra-Slim Actuator;Electromagnetic Analysis;Optical Disc Drives; Dynamic Characteristics;Finite Element Method


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