Drive level measurement of flying height modulation and control of slider disk contact
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A drive level measurement of flying height modulation and a demonstration of slider-disk contact control was conducted. The results of the flying height modulation strongly agree with those obtained from a Laser Doppler Vibrometer (LDV) measurement. The modulation was mainly caused by curvature caused by disk clamping. Furthermore, feedback control of a slider-disk contact was successfully demonstrated. Friction force was controlled at a small value to maintain the slider so that it flew over the disk in the light contact regime.
Keywordshead disk interface magnetic recording
- 1.B. Liu and Z.M. Yuan, In-situ Characterization of Head Disk Clearance, ASME/Tribology Symposium on Interface Tribology Towards 100 Gb/in 2 and Beyond, Seattle, USA, Vol. 51, (2000) pp. 51–58Google Scholar