Title :
Effect of ramp profile and spindle speed on head-disk contact during rotary load/unload
Author :
Levi, P.G. ; Talke, F.E.
Author_Institution :
Center for Magn. Record Res., California Univ., San Diego, La Jolla, CA, USA
fDate :
11/1/1993 12:00:00 AM
Abstract :
The relative effect of ramp profile and spindle speed on head-disk contact during rotary load/unload was examined using laser Doppler vibrometry and acoustic emission. At large radial loading velocities, the cycloidal ramp profile shows a significant reduction in the magnitude of the head-disk contact as compared to a standard inclined ramp profile. Spindle speed, by comparison, has only a small effect on head-disk contact
Keywords :
acoustic emission testing; magnetic disc storage; magnetic heads; measurement by laser beam; vibration measurement; acoustic emission; cycloidal ramp profile; head-disk contact; laser Doppler vibrometry; radial loading velocities; ramp profile; rotary load/unload; spindle speed; Acoustic emission; Assembly; Damping; Degradation; Disk recording; Drives; Magnetic recording; Monitoring; Probes; Tracking;
Journal_Title :
Magnetics, IEEE Transactions on
