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High-speed orthogonal power effect actuator for recording at over 10000 TPI

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6 Author(s)
Aruga, K. ; Fujitsu Labs. Ltd., Kawasaki, Japan ; Kuroba, Y. ; Koganezawa, S. ; Yamada, T.
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A new type of rotary actuator for HDDs is presented. To suppress the resonance gain in the quasi-rigid body mode caused by the stiffness of support bearings, we propose orthogonal driving. The designed actuator for a 3.5-inch drive shows a quasi-rigid body mode gain of less than 5 dB, and a fundamental resonance frequency of approximately 10 kHz. The results agree with those from finite element analysis

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Magnetics, IEEE Transactions on  (Volume:32 ,  Issue: 3 )