Title :
Optical quantitative observation of slider-disk interaction during load-unload processes
Author :
Yansheng Ma ; Jiang Zhou ; Yunfeng Song ; Bo Liu
Author_Institution :
Data Storage Inst., Singapore, Singapore
Abstract :
A novel flying height-attitude testing system was developed based on white light interferometry. Flying heights at three desired locations on slider surface can be determined simultaneously with this system and thus, the flying attitude of a slider can be fully determined. Load and unload processes were systematically studied with this system and some details were revealed.
Keywords :
disc drives; hard discs; light interferometry; magnetic heads; flying height-attitude testing system; hard disk drive; head-disk interface; load-unload processes; optical quantitative observation; slider surface; slider-disk interaction; white light interferometry; Charge coupled devices; Charge-coupled image sensors; Fluctuations; High speed optical techniques; Interference; Mirrors; Monitoring; Optical sensors; Optical surface waves; Wavelength measurement;
Conference_Titel :
Magnetic Recording Conference, 2002. Digest of the Asia-Pacific
Conference_Location :
Singapore
Print_ISBN :
0-7803-7509-2
DOI :
10.1109/APMRC.2002.1037710
