Your Search Results

Use this resource - and many more! - in your textbook!

AcademicPub holds over eight million pieces of educational content for you to mix-and-match your way.

Experience the freedom of customizing your course pack with AcademicPub!
Not an educator but still interested in using this content? No problem! Visit our provider's page to contact the publisher and get permission directly.

TrueTrack/sup TM/ servo technology for high TPI disk drives

By: Sri-Jayantha, S.M.; Yamamoto, S.; Kitazaki, N.; Yoneda, I.; Sharma, A.; Hien Dang;

2001 / IEEE

Description

This item was taken from the IEEE Periodical ' TrueTrack/sup TM/ servo technology for high TPI disk drives ' The performance of a high track density disk drive is critically limited by positioning errors induced by disk shift, spindle vibration and disk warp-based servomechanics. The spectrally rich error components can be compensated for by high-gain digital filters. The filters augment the basic function of a conventional controller. Using a novel method for initializing filters, precision tracking is achieved without compromising the settle out performance of a disk drive. An autonomous filter state propagation method during seek is shown to simplify the implementation process. A silicon servo chip has been designed to incorporate the key functions of the algorithm.