Head-positioning control system using thermal actuator in hard disk drives

被引：2

作者：

Odai, Masaki ^{[1
]}

Atsumi, Takenori ^{[2
]}

Otsuki, Haruaki ^{[1
]}

Arisaka, Toshihiro ^{[1
]}

机构：

[1] Hitachi Ltd, Hitachi Res Lab, Hitachinaka, Ibaraki, Japan

[2] HGST Japan Ltd, Japan Res Lab, Fujisawa, Kanagawa, Japan

来源：

MICROSYSTEM TECHNOLOGIES-MICRO-AND NANOSYSTEMS-INFORMATION STORAGE AND PROCESSING SYSTEMS | 2013年 / 19卷 / 9-10期

关键词：

Frequency Response; Feedback Controller; Actuator System; Sensitivity Function; Hard Disk Drive;

D O I：

10.1007/s00542-013-1843-7

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

In this paper, we propose a head-positioning control system with a thermal actuator in hard disk drives (HDDs). The frequency response of the thermal actuator showed that the thermal actuator system has no mechanical resonant mode. Therefore, this head-positioning system with a thermal actuator can control the head-position beyond the major mechanical resonances caused by a voice coil motor (VCM) or suspensions. In this study, the system was a dual-stage actuator system; the first actuator was a VCM, and the second was a thermal actuator. Simulation results for a track-following control in an HDD demonstrated the validity of the proposed method.

引用

页码：1483 / 1494

页数：12

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