Title :
A Study on Positioning Error Caused by FIV using Helium Filled Hard Drives
Author :
Aruga, Keiji ; Suwa, Masaya
Author_Institution :
Fujitsu Ltd., Kawasaki
fDate :
Nov. 29 2006-Dec. 1 2006
Abstract :
We compared positioning accuracy of helium filled drives with that of standard air drives. We report the spectrums of PES and calculated mechanical disturbance. The results revealed that almost all disturbances in higher rpm drives are flow induced vibrations and that disturbances in helium drives are dramatically smaller. The experimental positioning error of helium drives is less than half that of usual air drives.
Keywords :
disc drives; hard discs; helium; vibrations; FIV; PES; flow induced vibrations; helium filled hard drives; mechanical disturbance; positioning error signal; Disk drives; Frequency; Hard disks; Helium; Resonance; Seals; Servomechanisms; Thermal conductivity; Vibrations; Viscosity; Flow Induced Vibration; Hard Disk Drive; Helium; Positioning;
Conference_Titel :
Asia-Pacific Magnetic Recording Conference, 2006
Conference_Location :
Singapore
Print_ISBN :
1-4244-0863-6
DOI :
10.1109/APMRC.2006.365888
