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
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D O I：
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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.
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页数：3
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