IEEJ Transactions on Industry Applications
Online ISSN : 1348-8163
Print ISSN : 0913-6339
ISSN-L : 0913-6339
Paper
Positioning Control of Servo Track Writing Systems for Hard Disk Drives
Atsushi OkuyamaNaoto TagoMasaki Odai
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2012 Volume 132 Issue 11 Pages 1065-1071

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Abstract

Self-servo track writing (SSTW) in hard disk drives (HDDs) is a process of writing a subsequent track from the previously written track. One of the issues with SSTW is how to minimize the propagation of writing errors from previous tracks. This paper presents a control method for reducing error propagation in the SSTW process. The proposed method determines the error compensation signal according to the repeatable run-out, which is calculated from the previous writing error. The effectiveness of the proposed method is confirmed by numerical simulations of the benchmark problem for HDDs.

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© 2012 by the Institute of Electrical Engineers of Japan
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