Transactions of the Korean Society of Mechanical Engineers A (대한기계학회논문집A)

The Korean Society of Mechanical Engineers (대한기계학회)
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Measurement of the Flying Characteristics of HDD Slider Air Bearing Using AE Signal

AE 신호를 이용한 HDD 슬라이더 공기베어링의 부상상태 측정

  • Kim, Jae-Jic (Dept.of Mechanical Aerospace Engineering, Kunkuk University) ;
  • Jeong, Tae-Gun (Dept.of Mechanical Aerospace Engineering, Kunkuk University)
  • 김재직 (건국대학교 기계항공공학부) ;
  • 정태건 (건국대학교 대학원 기계공학과)
  • Published : 2001.09.01
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Abstract

The AE measurement is one of the most convenient methods for detecting contacts between the slider and the disk. The AE method has been widely used in the investigation of the tribology of sliding interfaces due to its convenience. We examined the relationship between the AE signal and the flying height of a slider. We investigated the influence of the disk linear velocity on the AE rms signal by using the AE measurement system. The experiment also gives the relationship between the take-off velocity and the disk surface conditions. To investigate the behavior of the slider further, the variances of the AE signals are analyzed. The experimental results indicate that the increase in the magnitude of the AE rms signal does not necessarily mean the slider/disk contacts.

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References

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