Identification of contributors to HDD servo errors by measuring PES only

Hyun Seok Yang, Cheol Hoon Park, Jun Jeong, Young Pil Park

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

In this paper, disturbances, the source of TMR being barrier to high track density of HDD are analyzed quantitatively using PES only without extra sensor. Disturbances are separated into RRO and NRRO, then, NRRO is separated into input torque disturbance, output disturbance, and noise. The effect of each disturbance to PES is compared. Using separated disturbances, PSD of PES RRO and NRRO are predicted for various gain levels in track following servo, and they are compared with PSD of PES measured in experiment. We propose that it can be used to predict servo performance accurately.

Original languageEnglish
Title of host publication2000 Asia-Pacific Magnetic Recording Conference - Digests of APMRC 2000 on Mechanical and Manufacturing Aspects of HDD
PublisherInstitute of Electrical and Electronics Engineers Inc.
PagesTA5/1-TA5/2
ISBN (Electronic)0780362543, 9780780362543
DOIs
Publication statusPublished - 2000
EventAsia-Pacific Magnetic Recording Conference, APMRC 2000 - Tokyo, Japan
Duration: 2000 Nov 62000 Nov 8

Publication series

Name2000 Asia-Pacific Magnetic Recording Conference - Digests of APMRC 2000 on Mechanical and Manufacturing Aspects of HDD

Other

OtherAsia-Pacific Magnetic Recording Conference, APMRC 2000
CountryJapan
CityTokyo
Period00/11/600/11/8

Bibliographical note

Funding Information:
This work was supported by the Korea Science and Engineering Foundation through CISD (NO: 2000G0201) and the authors are grateful for the support.

All Science Journal Classification (ASJC) codes

  • Engineering(all)

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