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- W213790907 abstract "대용량 홀로그램 정보저장장치를 현재의 CD-ROM과 같이 디스크 형으로 구현하는데 있어서, 저장된 데이터를 정확하게 읽어내기 위한 픽업 모듈의 서보 컨트롤은 매우 중요하다 디스크 및 회전 모터의 요동에서 오는 기계적 오차를 보정하기 위해, 데이터 재생 시 광축상에 한 장의 평판유리를 사용하는 새로운 서보 컨트롤 방식을 제안하였다. 평판유리를 <TEX>$pm$</TEX><TEX>$10^{circ}$</TEX>이내에서 회전시킴으로써, <TEX>$pm$</TEX>200 <TEX>$mutextrm{m}$</TEX> 정도의 오차범위를 <TEX>$pm$</TEX>150 <TEX>$mutextrm{m}$</TEX> 이내로 컨트롤하여 재생오차를 92.5% 이상 줄일 수 있었다. In order to read correct data from a disk-type holographic storage medium, it is very important to implement a servo-control in the pick-up module, as in a conventional CD-ROM. We propose a novel servo-control method using a glass plate on the optical axis, which is able to compensate the mechanical errors coming from wobbling of holographic disk and spindle motor. By rotating the glass plate within <TEX>$pm$</TEX>10 degrees, we can reduce the reading errors of <TEX>$pm$</TEX>200 <TEX>${mu}{textrm}{m}$</TEX> to <TEX>$pm$</TEX>15 <TEX>${mu}{textrm}{m}$</TEX>." @default.
- W213790907 created "2016-06-24" @default.
- W213790907 date "2003-02-01" @default.
- W213790907 modified "2023-10-18" @default.
- W213790907 title "On-axis servo control in pickup actuator for disk type holographic data storage" @default.
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- W213790907 doi "https://doi.org/10.3807/kjop.2003.14.1.058" @default.
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