Piezoelectric film attached suspension for detecting disk flutter and reducing track misregistration

被引：0

作者：

Shinichi Ohtsuka

Shinji Koganezawa

Takeyori Hara

Kei Funabashi

Takuji Matsuzawa

机构：

[1] Fujitsu Limited,

来源：

Microsystem Technologies | 2009年 / 15卷

关键词：

PVDF; Bottom Electrode; Hard Disk Drive; Outer Zone; Sensor Output;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

To increase the recording density of hard disk drives, high accuracy of head positioning is required. But disk flutter, which is airflow induced vibration, is a major contributor to head positioning error. For detecting disk flutter, we proposed a suspension to which a PVDF film sensor was attached, and built the suspension into an actual HDD. Comparing the power spectrum of disk vertical vibration with that of the PVDF film sensor output, disk flutter was well detected. We also implemented a feedforward controller and confirmed that the influence of disk flutter on position error signal is considerably suppressed.

引用

页码：1509 / 1513

页数：4

共 3 条

[1] Piezoelectric film attached suspension for detecting disk flutter and reducing track misregistration
Ohtsuka, Shinichi
Koganezawa, Shinji
Hara, Takeyori
Funabashi, Kei
Matsuzawa, Takuji
[J]. MICROSYSTEM TECHNOLOGIES-MICRO-AND NANOSYSTEMS-INFORMATION STORAGE AND PROCESSING SYSTEMS, 2009, 15 (10-11): : 1509 - 1513
[2] Feedforward control for reducing disk-flutter-induced track misregistration
Guo, GX
Zhang, JL
[J]. IEEE TRANSACTIONS ON MAGNETICS, 2003, 39 (04) : 2103 - 2108
[3] Prediction of track misregistration due to disk flutter in hard disk drive
Chang, YB
Park, DK
Park, NC
Park, YP
[J]. IEEE TRANSACTIONS ON MAGNETICS, 2002, 38 (02) : 1441 - 1446

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