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.
Bibliographical noteFunding 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: firstname.lastname@example.org; email@example.com; firstname.lastname@example.org). Digital Object Identifier 10.1109/TMAG.2003.816249
All Science Journal Classification (ASJC) codes
- Electronic, Optical and Magnetic Materials
- Electrical and Electronic Engineering