A novel method for disc run-out testing

被引：0
|
作者：
Huang, J [1 ]
Pei, XD [1 ]
Xie, CS [1 ]
Liu, BX [1 ]
机构：
[1] Huazhong Univ Sci & Technol, Dept Comp Sci & Engi, Natl Storage Syst Lab, Wuhan 430074, Hubei, Peoples R China
来源：
NOVEL OPTICAL SYSTEMS AND LARGE-APERTUR IMAGING | 1998年 / 3430卷
关键词：
run-out; optical disc; testing;
D O I：
10.1117/12.332471
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We raised a novel method to test radial run-out of optical disc. The method measures run-out by track-across signal when optical head keeps focusing on rotating disc and stops in radial direction. The track-across signal can be picked up from commercial disc drive. Then the distance of passed tracks is calibrated by linear gratings. The advantages of this method are low-cost and high accuracy.
引用
收藏
页码：157 / 159
页数：3
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