Restraining the Radial Error of the Self-Servowriting Process in Hard Disk with Sparating Magnetic Head

ZHAO Xiao-gang; WANG Hai-wei; XIE Chang-sheng; LI Bo

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Restraining the Radial Error of the Self-Servowriting Process in Hard Disk with Sparating Magnetic Head

更新时间：2025-07-16

- Restraining the Radial Error of the Self-Servowriting Process in Hard Disk with Sparating Magnetic Head
- Acta Electronica Sinica Vol. 36, Issue 11, Pages: 2239-2242(2008)
- 作者机构：
  
  1. 华中科技大学计算机学院,湖北,武汉,430074
  2. 武汉光电国家实验室光电信息存储研究部,湖北,武汉,430074
  3. 华中科技大学计算机学院,湖北,武汉,430074
  4. 武汉光电国家实验室光电信息存储研究部湖北武汉,430074
- 作者简介：
- 基金信息：
- DOI：
  CLC： TP309
- Published：2008
- 稿件说明：
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ZHAO Xiao-gang, WANG Hai-wei, XIE Chang-sheng, et al. Restraining the Radial Error of the Self-Servowriting Process in Hard Disk with Sparating Magnetic Head[J]. Acta Electronica Sinica, 2008, 36(11): 2239-2242.
DOI：

ZHAO Xiao-gang, WANG Hai-wei, XIE Chang-sheng, et al. Restraining the Radial Error of the Self-Servowriting Process in Hard Disk with Sparating Magnetic Head[J]. Acta Electronica Sinica, 2008, 36(11): 2239-2242. DOI：

摘要

本文分析了自伺服过程中产生轨道形状偏差的原因及其带来的径向误差传递现象.详细讨论了分离式磁头对自伺服刻写的影响

指出磁头弯曲度的变化将对径向误差的传播产生一定作用.提出了一种加权型校正信号的产生方法

并从理论上和仿真条件下证明了该方法在参考值变化的情况下对径向误差抑制的作用.

Abstract

The paper analyzes the reason of track shape error and the phenomenon of radial error propagation.Next the paper discusses in detail the effect of separating magnetic head to self-servowriting process.It shows the change of skew angel of the head will affect the radial error propagation procedure.In the end a new weighted correction signal method is proposed in the paper.The method has good containment effect which is proved in theory and in simulation test when reference signal changes.

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