UNSHIELDED MAGNETORESISTIVE HEADS IN VERY HIGH-DENSITY RECORDING.

被引：16

作者：

Jeffers, Fred ^{[1
]}

Karsh, Herb ^{[1
]}

机构：

[1] Eastman Kodak Co, San Diego, CA, USA, Eastman Kodak Co, San Diego, CA, USA

来源：

IEEE Transactions on Magnetics | 1984年 / MAG-20卷 / 05期

关键词：

MAGNETIC DEVICES;

D O I：

10.1109/TMAG.1984.1063453

中图分类号：

学科分类号：

摘要：

This report describes results obtained with a UMR head reproducing 80 kFCI (3150 FC/mm) signals recorded on Kodak Isomax tape. Bandedge signal and low-density distortion were plotted versus bias field. Surprisingly, maximum high-density signal and minimum distortion occur at about the same bias field. Electronic, thermal, and magnetic noise were measured and tape-noise-limited performance was obtained. Equalized signals from a pseudo-random data sequence were examined with a transition interval analyzer as well as by eye pattern photograph. The transitions were well separated, and the eye pattern was well defined in both phase and amplitude.

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