한국윤활학회:학술대회논문집 (Proceedings of the Korean Society of Tribologists and Lubrication Engineers Conference)
- 한국윤활학회 2002년도 proceedings of the second asia international conference on tribology
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- Pages.275-276
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- 2002
Static and Dynamic Characteristics of Active-head Sliders
- Kurita, Masayuki (Mechanical Engineering Research Laboratory, Hitachi, Ltd.) ;
- Xu, Junguo (Mechanical Engineering Research Laboratory, Hitachi, Ltd.) ;
- Kato, Koji (Department of Mechatronics and Precision Engineering, Tohoku University) ;
- Adachi, Koshi (Department of Mechatronics and Precision Engineering, Tohoku University) ;
- Su, Lizhi (Department of Mechatronics and Precision Engineering, Tohoku University)
- 발행 : 2002.10.21
초록
Active-head sliders with a unimorph piezoelectric actuator for flying height control were experimentally evaluated. It was found that the normalized stroke of the actuator is 5.2 to 6 nm/V/mm without flying over the disk. However, the normalized adjustment range of flying height is about 1.6 nm/V/mm when the active-head slider is flying over the disk. This value is smaller than the measured value when the slider is not flying, because of the air pressure generated at the active pad when the pad approaches the disk surface.