Load/unload dynamic characteristics are affected by various parameters; load/unload speed, disk rotating speed, disk vibration and so on. The effect of load/unload process on various parameters was investigated by the experiment. As a result of experiment, the load performance was found to be better for lower load speed and disk rpm. On the other hand, it was confirmed to be better for lower unload speed and higher disk rpm in unload process. Also, the effect of disk vibration was studied for load/unload process. The amplitude of disk vibration can affect in a relative ramp-disk gap and the disk vertical velocity affects in a relative slider-disk speed during load/unload process. As the results of 1000 unload cycles, the non-contact region was changed as the function of disk rotating speed. The non-contact region was smaller in a lower disk rpm. This paper proposes a new control system in order to improve the load/unload performance.
|Title of host publication||Asia-Pacific Magnetic Recording Conference 2004, Digest of APMRC 2004|
|Publisher||Institute of Electrical and Electronics Engineers Inc.|
|Number of pages||2|
|ISBN (Electronic)||0780387171, 9780780387171|
|Publication status||Published - 2004|
|Event||2004 Asia-Pacific Magnetic Recording Conference, APMRC 2004 - Seoul, Korea, Republic of|
Duration: 2004 Aug 16 → 2004 Aug 19
|Name||Asia-Pacific Magnetic Recording Conference 2004, Digest of APMRC 2004|
|Other||2004 Asia-Pacific Magnetic Recording Conference, APMRC 2004|
|Country||Korea, Republic of|
|Period||04/8/16 → 04/8/19|
Bibliographical notePublisher Copyright:
© 2004 IEEE.
All Science Journal Classification (ASJC) codes
- Electrical and Electronic Engineering