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Design and Analysis of a Lever actuator for the Optical Disk Pickup  

Han, Chang-Soo (한국기계 연구원 지능형 정밀기계 연구부)
Kim, Soo-Hyun (한국과학기술원 기계공학과)
Publication Information
Journal of the Korean Society for Precision Engineering / v.19, no.9, 2002 , pp. 41-50 More about this Journal
Abstract
Optical disk system aiming at fast data transfer rate and high-density recording requires the improvement in performance of the pickup head. Especially, the pickup actuator needs better linearity and stability. So, a lever actuator for optical disk is proposed. In this paper, the role of lever and its structure are discussed and the flexure hinge is introduced to enhance the precise movement. Using the Newoton's method, the motion of equation for the lever actuator is obtained. The results are compared with the analysis results by the FEM (Finite Element Method) for the vibration and the magnetic field. Consequently, the lever actuator has the 2"d system characteristics in 3-axis moving directions and superior stability for the external vibration.tion.
Keywords
Optical disk; Pickup actuator; Lever actuate.; Flexure hinge; FEM;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
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