Proceedings of the Korean Society of Tribologists and Lubrication Engineers Conference (한국윤활학회:학술대회논문집)

Korean Tribology Society (한국트라이볼로지학회)
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An Experimental Study on Measurement of Contact Force of Head/Disk Interface Using Acoustic Emission Sensor

AE 센서를 이용한 헤드/디스크 틈새의 텁촉력 측정에 관한 실험적 연구

  • Kim, Ji-Hoon (School of Mechanical Engineering, Graduate School, Yeungnam University) ;
  • Kim, Do-Hyung (School of Mechanical Engineering, Graduate School, Yeungnam University) ;
  • Hwang, Pyung (School of Mechanical Engineering, Yeungnam University)
  • 김지훈 (영남대학교 대학원 기계공학부) ;
  • 김도형 (영남대학교 대학원 기계공학부) ;
  • 황평 (영남대학교 기계공학부)
  • Published : 1998.10.01
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Abstract

In order to measure the real contact force between head and disk on hard disk drive quantitatively, many technique of measurement have been developed. Acoustic Emission Sensor can be used for detect elastic energy of head/disk contact as arms value. In this study using pencil breaking test is proposed for finding contact force using transfer function between calibrated force and real contact force. And real AE data of subambient and tripad slider shows bending and torsional mode and their energy are dominant in hard disk and head contact.

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