Design and Analysis of a Mini-Linear Actuator for Optical Disk Drive

Joon Hyuk Park, Yoon Su Baek, Young Pil Park

Research output: Contribution to journalArticlepeer-review

11 Citations (Scopus)


This paper describes a mini-linear optical pickup actuator and virtual path method for analysis of open magnetic circuit. The magnetic circuit of the proposed actuator becomes a closed circuit when virtual path model is applied to the outer air magnetic flux. The validity of the virtual path method is proved using a finite-element method and force experiment. A frequency response experiment shows the availability of the proposed actuator as a radial direction actuator for optical disk drives.

Original languageEnglish
Pages (from-to)3337-3339
Number of pages3
JournalIEEE Transactions on Magnetics
Issue number5 II
Publication statusPublished - 2003 Sept

Bibliographical note

Funding Information:
Manuscript received January 17, 2002. This work was supported by the Korea Science and Engineering Foundation (KOSEF), CISD, Yonsei University under Grant R11-1997-042-090001-0. The authors are with the Mechanical Engineering Department, Yonsei University, Seoul, Korea (e-mail:;; Digital Object Identifier 10.1109/TMAG.2003.816249

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering


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