TY - JOUR
T1 - Towards a flat rotating flexible disk for high speed optical data storage
AU - Gad, Abdelrasoul M.M.
AU - Rhim, Yoon Chul
N1 - Copyright:
Copyright 2010 Elsevier B.V., All rights reserved.
PY - 2010/8
Y1 - 2010/8
N2 - A flexible optical disk system, which consists of a thin optical disk and a rigid stabilizer, has recently introduced as the next-generation optical storage media. The present work introduces a new design for the stabilizer that helps to hold the rotating flexible optical disk almost flat and thereby reducing its axial run-out at high rotational speeds; the new design incorporates an axisymmetrically curved active surface of the stabilizer. The combination of the stabilizer curvature and disk rotation generates moderate air-film forces that balance the disk mechanical forces and reduces the disk axial run-out considerably. With a proper combination of the stabilizer geometrical parameters, the out-of-flatness as well as the axial run-out of the disk could be reduced to less than 10 μm. The significant decrease in the axial run-out at rotational speed of 10,000 rpm is primarily due to the flatness of the disk.
AB - A flexible optical disk system, which consists of a thin optical disk and a rigid stabilizer, has recently introduced as the next-generation optical storage media. The present work introduces a new design for the stabilizer that helps to hold the rotating flexible optical disk almost flat and thereby reducing its axial run-out at high rotational speeds; the new design incorporates an axisymmetrically curved active surface of the stabilizer. The combination of the stabilizer curvature and disk rotation generates moderate air-film forces that balance the disk mechanical forces and reduces the disk axial run-out considerably. With a proper combination of the stabilizer geometrical parameters, the out-of-flatness as well as the axial run-out of the disk could be reduced to less than 10 μm. The significant decrease in the axial run-out at rotational speed of 10,000 rpm is primarily due to the flatness of the disk.
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U2 - 10.1143/JJAP.49.08KC01
DO - 10.1143/JJAP.49.08KC01
M3 - Article
AN - SCOPUS:78049352116
VL - 49
JO - Japanese Journal of Applied Physics
JF - Japanese Journal of Applied Physics
SN - 0021-4922
IS - 8 PART 3
M1 - 08KC01
ER -