HIGH-DENSITY MAGNETIC RECORDING TRACKING METHOD USING A LASER DIODE

被引：7

作者：

AKAGI, K ^{[1
]}

NAKAO, T ^{[1
]}

MIYAMURA, Y ^{[1
]}

MUNEMOTO, T ^{[1
]}

MORI, K ^{[1
]}

机构：

[1] HITACHI LTD,MECH ENGN RES LAB,TSUCHIURA,IBARAKI 300,JAPAN

来源：

IEEE TRANSACTIONS ON MAGNETICS | 1991年 / 27卷 / 06期

关键词：

D O I：

10.1109/20.278819

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：

A new tracking technology for achieving high track density over 10 k tracks-per-inch (TPI) is developed. Two key technologies are incorporated. One is the application of optical disk technology to a magnetic disk to obtain a high quality servo signal with a trackwidth 1.5 to 2-mu-m. The other is the installation of a dual-stage actuator using a piezoelectric device for the fine acuator to gain higher servo performance in a bandwidth greater than 1 kHz. This paper describes the design of the optical servo system for the track pitch 1.5-mu-m, 17 k TPI, and experimental results including a comparison of magnetic heads.

引用

页码：5301 / 5303

页数：3

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