Journal ArticleDOI
An experimental comparison of the head/disk interface dynamics in 51/4- and 8-inch disk drives
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TLDR
The stability of the head under steady operating conditions is compared between a 5/14-inch and two different 8-inch "Winchester" drives.Abstract:
A laser Doppler vibrometer is used to measure the head/disk interface dynamics in computer disk drives. The stability of the head under steady operating conditions is compared between a 5/14-inch and two different 8-inch "Winchester" drives. In the larger drives, high-frequency vibrations (between 5 and 10 kHz) are detected on the slider which are not present in the smaller drive. These vibrations have amplitudes on the order of magnitude of the head/disk spacing and are related to the rolling and pitching modes of the slider. The vibrations of the disk, suspension, and actuator arm are also investigated and correlated with the results obtained on the slider.read more
Citations
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References
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Journal ArticleDOI
Dynamic response of a Winchester-type slider measured by laser Doppler interferometry
TL;DR: In this paper, a laser Doppler technique was used to measure the dynamic response of a slider in an unmodified magnetic disk file, which is applicable only to steady state measurements.