DocumentCode
3532589
Title
Sensorless detection of free-falling state of a HDD by monitoring electromechanical signal of a spindle motor
Author
Jang, G.H. ; Park, S.J.
Author_Institution
PREM Lab., Hanyang Univ., Seoul, South Korea
fYear
2005
fDate
4-8 April 2005
Firstpage
741
Lastpage
742
Abstract
This research proposes a sensorless detection method of a free-falling condition of a HDD before unexpected shock by monitoring the electromechanical signals of a HDD spindle motor. The electromechanically coupled simulation presents the theoretical background and the simulation result is verified by the experiment.
Keywords
disc drives; electric motors; hard discs; HDD free-falling state; HDD spindle motor; electromechanical signal monitoring; electromechanically coupled simulation; sensorless detection; unexpected shock; Brushless DC motors; DC motors; Electromagnetic fields; Finite element methods; Hydrodynamics; Magnetic heads; Maxwell equations; Monitoring; Pulse width modulation; Torque;
fLanguage
English
Publisher
ieee
Conference_Titel
Magnetics Conference, 2005. INTERMAG Asia 2005. Digests of the IEEE International
Print_ISBN
0-7803-9009-1
Type
conf
DOI
10.1109/INTMAG.2005.1463799
Filename
1463799
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