By Topic

Attenuation of High Frequency Mechanical Resonances Using Multirate Low-Pass Filter in HDDs

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$33 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

2 Author(s)
QingWei Jia ; R&D Center, Hitachi Asia, Ltd., Singapore, Singapore ; Shinobu Yoshida

In this paper, the design method of a multirate digital filter to handle high frequency resonant modes in hard disk drives (HDDs) or other mechanical actuators is proposed. Instead of using many notch filters, one low-pass filter will handle multiple mechanical resonance modes. The proposed multirate digital filter has robust resonance cancellation capability with comparable or even lower phase loss than using notch filters. The proposed scheme can well handle the high frequency mechanical resonances in the sense of robustness to variations of resonance frequencies and simplicity to implement in practice. The effectiveness of the proposed method is verified by application to a real HDD servo system.

Published in:

IEEE Transactions on Magnetics  (Volume:45 ,  Issue: 10 )