INTERFEROMETRIC SPACING MEASUREMENTS OF THE BERNOULLI HEAD DISK INTERFACE

被引：5
|
作者：
WAHL, MH
BRIGGS, JC
TALKE, FE
机构：
[1] Center for Magnetic Recording Research at UCSD, La Jolla, CA
来源：
IEEE TRANSACTIONS ON MAGNETICS | 1992年 / 28卷 / 05期
关键词：
D O I：
10.1109/20.179553
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Head-to-disk spacing in a flexible disk drive (Bernoulli technology) is measured interferometrically using monochromatic light in conjunction with a grey level interpolation scheme. Measurements in the center region of a Bernoulli head indicate that the minimum head/disk separation is less than 50nm (2-mu-in), suggesting that asperity contacts occur in the area of closest approach. The spacing distribution of a typical Bernoulli head is reported, as well as a parameter study of spacing as a function of rotational speed.
引用
收藏
页码：2551 / 2553
页数：3
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