Dual-stage servo systems and vibration compensation in computer hard disk drives

被引：75
|
作者：
Horowitz, Roberto [1 ]
Li, Yunfeng
Oldham, Kenn
Kon, Stanley
Huang, Xinghul
机构：
[1] Univ Calif Berkeley, CML, Dept Mech Engn, Berkeley, CA 94720 USA
[2] Samsung Informat Syst Amer, San Jose, CA 95134 USA
[3] Seagate Res, Servo Dynam Grp, Pittsburgh, PA 15222 USA
来源：
CONTROL ENGINEERING PRACTICE | 2007年 / 15卷 / 03期
关键词：
hard disk drives; dual-stage servos; vibration suppression; instrumented suspensions;
D O I：
10.1016/j.conengprac.2006.09.003
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
This paper discusses two mechatronic innovations in magnetic hard disk drive servo systems, which may have to be deployed in the near future, in order to sustain the continuing 60% annual increase in storage density of these devices. The first is the use of high bandwidth dual-stage actuator servo systems to improve the precision and track-following capability of the read/write head positioning control system. The second is the instrumentation of disk drive suspensions with vibration sensing strain gages, in order to enhance airflow-induced suspension vibration suppression in hard disk drives. (c) 2006 Published by Elsevier Ltd.
引用
收藏
页码：291 / 305
页数：15
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