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개구형 근접장 헤드장치의 간극제어를 위한 이중 서보 제어
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- Issue Date
- 2006-06
- Citation
- 한국소음진동공학회논문집, v.16, no.5, pp.479-484
- ISSN
- 1598-2785
- Publisher
- 한국소음진동공학회
- Language
- Korean
- Type
- Journal Article
- Abstract
- This paper presents an active control of the aperture type near-field storage head. In order to achieve a fast and accurate control, a dual servo control algorithm is applied. Based on the big difference in time constants of two actuators, they are used independently. With the combination fine and coarse actuator, the disk is rotated up to 10 rpm speed until the gap is controlled within 100 nm. From the experimental results, the feasibility and the performance of active dual servo gap control is proved.
- KSP Keywords
- Accurate control, Active control, Fast and accurate, Gap control, Servo control, control algorithm, near-field, time constant