Emerging Technology for Head-Positioning System in HDDs

カテゴリ: 論文誌(論文単位)

グループ名: 【D】産業応用部門（英文）

発行日: 2016/03/01

タイトル(英語): Emerging Technology for Head-Positioning System in HDDs

著者名: Takenori Atsumi (Department of Mechanical Science and Engineering, Chiba Institute of Technology)

著者名(英語): Takenori Atsumi (Department of Mechanical Science and Engineering, Chiba Institute of Technology)

キーワード: hard disk drive，positioning control，vibration control，triple-stage-actuator system，thermal actuator，thin-film-coil actuator

要約(英語): The recent rapid growth of the information industry has strongly increased the demand for large-capacity hard disk drives (HDDs). This means that increasing the areal recording density has become an important technical challenge in HDD development. To increase the HDD areal recording density, we have developed emerging technologies for high-accuracy positioning control of magnetic heads in the head-positioning system of HDDs. This paper introduces two examples of emerging technologies for future HDDs: “Vibration Control with Thin-Film-Coil Actuator” and “High-Bandwidth Control with Thermal Actuator”. The former utilizes a film-coil actuator attached to a coil of a voice-coil motor. The latter utilizes a thermal actuator in the magnetic head. These control systems employ triple-stage-actuator systems to improve the control performance of the head-positioning system. The validation results showed that these control systems enable us to achieve high-accuracy positioning control of magnetic heads for future HDDs.

本誌: IEEJ Journal of Industry Applications Vol.5 No.2 （2016） Special Issue on Motion Control and its Related Technologies

本誌掲載ページ: 117-122 p

原稿種別: 論文／英語

電子版へのリンク: https://www.jstage.jst.go.jp/article/ieejjia/5/2/5_117/_article/-char/ja/