INVESTIGATION OF THE CONTACT POTENTIAL OF THE HEAD-DISK INTERFACE USING KELVIN PROBE MEASUREMENTS

被引：0

作者：

Trinh, Tan D. ^{[1
]}

Spada, Frederick E. ^{[1
]}

Ovcharenko, Andrey ^{[2
]}

Talke, Frank E. ^{[1
]}

机构：

[1] Univ Calif San Diego, 9500 Gilman Dr,MC 0401, La Jolla, CA 92093 USA

[2] Western Digital Corp, San Jose, CA 95138 USA

来源：

PROCEEDINGS OF THE ASME/JSME JOINT INTERNATIONAL CONFERENCE ON INFORMATION STORAGE AND PROCESSING SYSTEMS AND MICROMECHATRONICS FOR INFORMATION AND PRECISION EQUIPMENT, 2018 | 2018年

关键词：

D O I：

暂无

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

The contact potential across the head-disk interface is investigated. AC voltage was applied to the disk surface using a mercury connector located at the top of the spindle, keeping the recording head grounded. The acoustic emission (AE) and touchdown sensor (TDS) amplitude was measured as a function of the DC offset voltage to determine the contact potential across the head-disk interface at which the AE and TDS signals, respectively, becomes a minimum. The contact potential across the head-disk interface is studied as a function of temperature, relative humidity, and wear of the head-disk interface.

引用

页数：3

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