Measurement of slot misalignment in an optical archive data storage system using dual sensing

Sung Yong Lim, Hyunseok Yang, Seunghon Yoo, Han Baek Lee, Young Do Choi

Research output: Contribution to journalArticle

Abstract

Optical disc cartridges for archive data storage are made up of multi-slot arrays, where each slot holds a disc. An archive data storage system should tolerate some level of misalignment between the disc and the cartridge slot. However, misalignment can lead to disc crashes against the slot walls or into other discs, and is often caused by poor positioning of the disc-transfer robot. Therefore, detecting misalignment is important to ensure the reliability of optical archive data storage systems. Here, we analyze the misalignment and propose a dual-sensing method based on a 4F imaging system. The method can simultaneously detect the top and bottom parts of the slots using only one detector.

Original languageEnglish
Pages (from-to)1549-1555
Number of pages7
JournalMicrosystem Technologies
Volume20
Issue number8-9
DOIs
Publication statusPublished - 2014 Jan 1

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Hardware and Architecture
  • Electrical and Electronic Engineering

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