Proceedings of the Korean Society for Noise and Vibration Engineering Conference (한국소음진동공학회:학술대회논문집)
- 2007.05a
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- Pages.848-851
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- 2007
- /
- 1598-2548(pISSN)
Design of Moving Magnet Type Optical Pickup Actuator
가동 자석형 광 픽업 엑추에이터 개발
- Kim, Sang-Ryong ;
- Kim, Yoon-Ki ;
-
Song, Myong-Gyu
;
- Woo, Jung-Hyun ;
-
Park, No-Cheol
;
-
Yoo, Jeong-Hoon
;
-
Park, Young-Pil
- 김상룡 (연세대학교 기계공학과) ;
- 김윤기 (연세대학교 정보저장기기연구센터) ;
-
송명규
(연세대학교 정보저장기기연구센터) ;
- 우정현 (연세대학교 기계공학과) ;
-
박노철
(연세대학교 정보저장기기연구센터) ;
-
유정훈
(연세대학교 기계공학과) ;
-
박영필
(연세대학교 기계공학과)
- Published : 2007.05.10
Abstract
Recently, as the demand of the information storage devices with large storage capacity such as BD(Blu-ray Disk) and HDTV(high-definition television) is increased, the optical storage devices are also required to have fast data transfer rate and large storage capacity. To satisfy these requirements, the actuator for optical disk drive should have high flexible mode frequencies for system stability. In this paper, we suggested a moving magnet type actuator having high flexible mode frequency. However, the moving magnet type actuator does not have sufficient driving sensitivities due to the weight of its moving part. To improve driving sensitivities, we designed the model with the closed electromagnetic circuit for tracking direction. In addition, driving sensitivities and flexible mode frequencies were improved by using DOE(Design of Experiments) for magnetic circuit and modifying the lens holder. Consequently, it is confirmed that the designed model is satisfied with the desired specifications.
Keywords