A simple recording head write field rise time measurement

被引：6

作者：

Arnoldussen, TC ^{[1
]}

Vo, C ^{[1
]}

Burleson, M ^{[1
]}

Zhu, JG ^{[1
]}

机构：

[1] UNIV MINNESOTA,DEPT EE,MINNEAPOLIS,MN 55455

来源：

IEEE TRANSACTIONS ON MAGNETICS | 1996年 / 32卷 / 05期

关键词：

D O I：

10.1109/20.538677

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 very simple technique for measuring the rise time constant of a recording head field is described. More generally the technique measures the time constant for the recording process including the mite driver circuit, the head (including micromagnetic effects), and the recording medium dynamics. Unlike other attempts to measure head field rise times, the essence of this approach is the use of the recording medium itself as the sensor. The magnitude of the write current required to produce a readback signal of a given amplitude is measured versus frequency of a square-wave write current. The requisite mite current vs. frequency allows the determination of the recording time constant.

引用

页码：3521 / 3523

页数：3