Title :
Design and analysis of a mini-linear actuator for optical disk drive
Author :
Park, Joon Hyuk ; Baek, Yoon Su ; Park, Young-Pil
Author_Institution :
Mech. Eng. Dept., Yonsei Univ., Seoul, South Korea
Abstract :
Describes a mini-linear optical pickup actuator and virtual path method for analysis of an open magnetic circuit. The magnetic circuit of the proposed actuator becomes a closed circuit when the 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.
Keywords :
disc drives; electromagnetic actuators; finite element analysis; magnetic circuits; optical disc storage; permanent magnet motors; pick-ups; closed circuit; finite-element method; force experiment; frequency response experiment; mini-linear actuator; open magnetic circuit; optical disk drive; optical pickup; outer air magnetic flux; radial direction actuator; virtual path method; voice coil motor; Coils; Disk drives; Hydraulic actuators; Magnetic analysis; Magnetic circuits; Magnetic flux; Optical design; Permanent magnets; Reluctance motors; Shape;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2003.816249
