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 Jan 1
EventAsia-Pacific Magnetic Recording Conference, APMRC 2000 - Tokyo, Japan
Duration: 2000 Nov 62000 Nov 8

Other

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

Fingerprint

Torque
Sensors
Experiments

All Science Journal Classification (ASJC) codes

  • Engineering(all)

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). [898921] Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/APMRC.2000.898921
Yang, Hyun Seok ; Park, Cheol Hoon ; Jeong, Jun ; Park, Young Pil. / 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
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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.",
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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, 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; Park, Young Pil.

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.

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

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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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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 https://doi.org/10.1109/APMRC.2000.898921