发明名称 |
Detection system using heating element temperature oscillations |
摘要 |
A data storage system includes a recording head and a compensating resistor. The recording head has a heating element. The compensating resistor is in electrical series with the heating element and is external to the recording head. A method includes applying an alternating current at a first angular frequency to a recording head. A voltage drop across the recording head heating element is measured. A component of the voltage drop is extracted. The component has a frequency that is three times the frequency of the first angular frequency.
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申请公布号 |
US8523312(B2) |
申请公布日期 |
2013.09.03 |
申请号 |
US20100941461 |
申请日期 |
2010.11.08 |
申请人 |
ZHENG XUAN;STOEBE TIMOTHY WILLIAM;SEAGATE TECHNOLOGY LLC |
发明人 |
ZHENG XUAN;STOEBE TIMOTHY WILLIAM |
分类号 |
G11B21/21 |
主分类号 |
G11B21/21 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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