Identification of contributors to HDD servo errors by measuring PES only

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

doi:10.1109/APMRC.2000.898921

Identification of contributors to HDD servo errors by measuring PES only

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

Department of Mechanical Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference 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 language	English
Title of host publication	2000 Asia-Pacific Magnetic Recording Conference - Digests of APMRC 2000 on Mechanical and Manufacturing Aspects of HDD
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	TA5/1-TA5/2
ISBN (Electronic)	0780362543, 9780780362543
DOIs	https://doi.org/10.1109/APMRC.2000.898921
Publication status	Published - 2000
Event	Asia-Pacific Magnetic Recording Conference, APMRC 2000 - Tokyo, Japan Duration: 2000 Nov 6 → 2000 Nov 8

Publication series

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

Other

Other	Asia-Pacific Magnetic Recording Conference, APMRC 2000
Country/Territory	Japan
City	Tokyo
Period	00/11/6 → 00/11/8

Bibliographical note

Publisher Copyright:
© 2000 IEEE.

All Science Journal Classification (ASJC) codes

Engineering(all)

Access to Document

10.1109/APMRC.2000.898921

Cite this

Yang, H. S., Park, C. H., Jeong, J., & Park, Y. P. (2000). Identification of contributors to HDD servo errors by measuring PES only. In 2000 Asia-Pacific Magnetic Recording Conference - Digests of APMRC 2000 on Mechanical and Manufacturing Aspects of HDD (pp. TA5/1-TA5/2). Article 898921 (2000 Asia-Pacific Magnetic Recording Conference - Digests of APMRC 2000 on Mechanical and Manufacturing Aspects of HDD). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/APMRC.2000.898921

Yang, Hyun Seok ; Park, Cheol Hoon ; Jeong, Jun et al. / Identification of contributors to HDD servo errors by measuring PES only. 2000 Asia-Pacific Magnetic Recording Conference - Digests of APMRC 2000 on Mechanical and Manufacturing Aspects of HDD. Institute of Electrical and Electronics Engineers Inc., 2000. pp. TA5/1-TA5/2 (2000 Asia-Pacific Magnetic Recording Conference - Digests of APMRC 2000 on Mechanical and Manufacturing Aspects of HDD).

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title = "Identification of contributors to HDD servo errors by measuring PES only",

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.",

author = "Yang, {Hyun Seok} and Park, {Cheol Hoon} and Jun Jeong and Park, {Young Pil}",

note = "Publisher Copyright: {\textcopyright} 2000 IEEE.; Asia-Pacific Magnetic Recording Conference, APMRC 2000 ; Conference date: 06-11-2000 Through 08-11-2000",

year = "2000",

doi = "10.1109/APMRC.2000.898921",

language = "English",

series = "2000 Asia-Pacific Magnetic Recording Conference - Digests of APMRC 2000 on Mechanical and Manufacturing Aspects of HDD",

publisher = "Institute of Electrical and Electronics Engineers Inc.",

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Yang, HS, Park, CH, Jeong, J & Park, YP 2000, Identification of contributors to HDD servo errors by measuring PES only. in 2000 Asia-Pacific Magnetic Recording Conference - Digests of APMRC 2000 on Mechanical and Manufacturing Aspects of HDD., 898921, 2000 Asia-Pacific Magnetic Recording Conference - Digests of APMRC 2000 on Mechanical and Manufacturing Aspects of HDD, Institute of Electrical and Electronics Engineers Inc., pp. TA5/1-TA5/2, Asia-Pacific Magnetic Recording Conference, APMRC 2000, Tokyo, Japan, 00/11/6. https://doi.org/10.1109/APMRC.2000.898921

Identification of contributors to HDD servo errors by measuring PES only. / Yang, Hyun Seok; Park, Cheol Hoon; Jeong, Jun et al.
2000 Asia-Pacific Magnetic Recording Conference - Digests of APMRC 2000 on Mechanical and Manufacturing Aspects of HDD. Institute of Electrical and Electronics Engineers Inc., 2000. p. TA5/1-TA5/2 898921 (2000 Asia-Pacific Magnetic Recording Conference - Digests of APMRC 2000 on Mechanical and Manufacturing Aspects of HDD).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

TY - GEN

T1 - Identification of contributors to HDD servo errors by measuring PES only

AU - Yang, Hyun Seok

AU - Park, Cheol Hoon

AU - Jeong, Jun

AU - Park, Young Pil

PY - 2000

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N2 - 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.

AB - 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.

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M3 - Conference contribution

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SP - TA5/1-TA5/2

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

PB - Institute of Electrical and Electronics Engineers Inc.

T2 - Asia-Pacific Magnetic Recording Conference, APMRC 2000

Y2 - 6 November 2000 through 8 November 2000

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Yang HS, Park CH, Jeong J, Park YP. Identification of contributors to HDD servo errors by measuring PES only. In 2000 Asia-Pacific Magnetic Recording Conference - Digests of APMRC 2000 on Mechanical and Manufacturing Aspects of HDD. Institute of Electrical and Electronics Engineers Inc. 2000. p. TA5/1-TA5/2. 898921. (2000 Asia-Pacific Magnetic Recording Conference - Digests of APMRC 2000 on Mechanical and Manufacturing Aspects of HDD). doi: 10.1109/APMRC.2000.898921

Identification of contributors to HDD servo errors by measuring PES only

Abstract

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