DocumentCode
1385206
Title
A glass disk distortion effect in an optical flying height tester
Author
Fukuzawa, Tadashi ; Hisano, Teiji ; Watabe, Hiroshi
Author_Institution
Tokyo Res. Lab., IBM Res., Kanagawa, Japan
Volume
32
Issue
5
fYear
1996
fDate
9/1/1996 12:00:00 AM
Firstpage
3690
Lastpage
3692
Abstract
A flying height tester has been developed for measuring low disk-to-media gap and high disk rotation speeds. The tester can obtain two-dimensional measurement data for a flying head, using an adaptive detection algorithm and signals from a color television camera. A depolarizing unit is used to suppress measurement errors caused by the photoelastic effect of the glass disk at high rotation speeds
Keywords
height measurement; magnetic disc storage; photoelasticity; adaptive detection algorithm; color television camera signal; depolarizing unit; disk rotation speed; disk-to-media gap; errors; flying head; glass disk distortion; optical flying height tester; photoelastic effect; two-dimensional measurement; Cameras; Detection algorithms; Distortion measurement; Glass; Optical distortion; Rotation measurement; Signal detection; TV; Testing; Velocity measurement;
fLanguage
English
Journal_Title
Magnetics, IEEE Transactions on
Publisher
ieee
ISSN
0018-9464
Type
jour
DOI
10.1109/20.538805
Filename
538805
Link To Document