진동신호분석을 통한 광디스크 드라이브의 고장원인분석

Abstract

In this paper. the failure analysis of an optical disk drive is carried out and the limit ranges of the misalignment for the higher performance are presented. Since optical disks are removable from optical disk drive, the translational and angular misalignments, which causes read/write errors, always exist. Therefore, the limit ranges of the misalignment should be investigated. For this reason, the failure analysis by the vibration analysis is studied. The influences of the misalignment are tested by the aging test. And the limit ranges of the misalignment are proposed for the reliability of optical disk drives.