文章基本信息

标题：超音波スピンドルによるハードディスクのヘッドとディスク間の摩擦軽減効果
本地全文：下载
作者：光安保 ; 柳澤斉 ; 上原年博等
期刊名称：映像情報メディア学会誌
印刷版ISSN：1342-6907
电子版ISSN：1881-6908
出版年度：2000
卷号：54
期号：10
页码：1431-1437
DOI：10.3169/itej.54.1431
出版社：The Institute of Image Information and Television Engineers
摘要：The surface of a hard disk is extremely flat so that a large amount of data can be stored at high density. This high degree of flatness, however, tends to cause sticking between the disk and the head when the disk starts and stops moving, and this reduces the reliability of the hard disk device. To solve this problem, we have developed an ultrasonic vibration spindle that vibrates the disk when it is turned on and off. We used this spindle in an ultrasonic levitation experiment, and found that by vibrating the spindle in a ring-shape vibration mode. We could keep the head and the disk apart and drastically reduce the friction coefficient between them. Further, by placing a reflection plate in the space above the hard disk at an appropriate plate-disk distance, we could increase the acoustic power. This means that the spindle can be made much smaller.
关键词：高密度平滑テープ;CSS方式;超音波スピンドル;振動子;モーダル解析;超音波浮揚