Title :
A Novel Electromagnetic Microactuator for Dual-Stage Position of Hard Disk
Author :
Zhou, Gongye ; Chen, Jincai ; Ning, Degang
Author_Institution :
Wuhan Nat. Lab. for Optoelectron., Huazhong Univ. of Sci. & Technol., Wuhan, China
Abstract :
This paper proposes a new design concept of dual-stage actuator model for the hard disk drive (HDD) to overcome the servo bandwidth limitation for the requirement of high track density. This microactuator is an electromagnetic actuator which consists of two micro coils and a hard magnet like a linear motor. Part of the suspension needs to be made by the soft magnetic material so that it can be taken as an electromagnetic core. The simulation results show that its stroke range is between 1.5nm to 17nm and its resonant frequency is about 1.4×104Hz.
Keywords :
disc drives; electromagnetic actuators; hard discs; microactuators; permanent magnets; soft magnetic materials; dual stage position; electromagnetic core; electromagnetic microactuator; hard disk drive; hard magnet; linear motor; micro coil; servo bandwidth; soft magnetic material; Coils; Load modeling; Magnetic resonance; Microactuators; Soft magnetic materials;
Conference_Titel :
E-Product E-Service and E-Entertainment (ICEEE), 2010 International Conference on
Conference_Location :
Henan
Print_ISBN :
978-1-4244-7159-1
DOI :
10.1109/ICEEE.2010.5661556
