Transactions of the Korean Society for Noise and Vibration Engineering (한국소음진동공학회논문집)

The Korean Society for Noise and Vibration Engineering (한국소음진동공학회)
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Dual Servo Control for Aperture Type Near Field Storage Head

개구형 근접장 헤드장치의 간극제어를 위한 이중 서보 제어

  • Published : 2006.05.01
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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.

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References

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