Sensors for dynamic characterisation of magnetic storage systems

D.F.L Jenkins (Centre for Research in Information Storage Technology (CRIST), University of Plymouth, Plymouth, UK)
W.W. Clegg (Centre for Research in Information Storage Technology (CRIST), University of Plymouth, Plymouth, UK)
L. He (Centre for Research in Information Storage Technology (CRIST), University of Plymouth, Plymouth, UK)
J. Windmill (Centre for Research in Information Storage Technology (CRIST), University of Plymouth, Plymouth, UK)
G. Tunstall (Centre for Research in Information Storage Technology (CRIST), University of Plymouth, Plymouth, UK)
X. Liu (Centre for Research in Information Storage Technology (CRIST), University of Plymouth, Plymouth, UK)
C. Chilumbu (Centre for Research in Information Storage Technology (CRIST), University of Plymouth, Plymouth, UK)
A. Li (Centre for Research in Information Storage Technology (CRIST), University of Plymouth, Plymouth, UK)

Sensor Review

ISSN: 0260-2288

Publication date: 1 December 2000

Abstract

The areal (surface area density of bits) storage density of magnetic hard disks is continually increasing, with typical available commercial storage densities being around 10Gbits/in2. It is predicted that densities in excess of 40Gbits/in2 will be possible before the year 2003. A number of key issues arise from this development, such as the need to determine and control accurately the dynamic flying height (z‐axis) of the read‐write head, which is affected by the apparent distortion of the disk surface due to rotation‐induced disk resonance. As a result of the increasing storage density the positional control of the head in the plane of the disk (xy plane) also becomes more critical. This paper deals generally, but with a particular emphasis on optical and piezoelectric sensors used in our laboratory for characterisation of storage media and systems.

Keywords

Citation

Jenkins, D., Clegg, W., He, L., Windmill, J., Tunstall, G., Liu, X., Chilumbu, C. and Li, A. (2000), "Sensors for dynamic characterisation of magnetic storage systems", Sensor Review, Vol. 20 No. 4, pp. 307-317. https://doi.org/10.1108/02602280010351037

Download as .RIS

Publisher

:

MCB UP Ltd

Copyright © 2000, MCB UP Limited

Please note you might not have access to this content

You may be able to access this content by login via Shibboleth, Open Athens or with your Emerald account.
If you would like to contact us about accessing this content, click the button and fill out the form.
To rent this content from Deepdyve, please click the button.