发明名称 |
METHOD AND APPARATUS FOR ESTIMATING FLYING HEIGHT IN A HARD DISK DRIVE |
摘要 |
This application discloses a hard disk drive and operates it based upon using a first and third harmonic amplitude generated from reading a repeated pattern of bits written to a track on a disk surface. Both amplitudes are used to create a first data set and the third harmonic amplitude is used as a single tone to create a second data set. A conversion factor between these two is determine, which may be used to convert the first data set under other conditions into a temperature insensitive table of the electrical stimulus of a vertical micro-actuator and the flying height change of the slider. The hard disk drive may be calibrated during manufacture and/or in the field.
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申请公布号 |
US2010309578(A1) |
申请公布日期 |
2010.12.09 |
申请号 |
US20090478716 |
申请日期 |
2009.06.04 |
申请人 |
LEE SUNGCHANG;TANG YAWSHING;SUK MIKE |
发明人 |
LEE SUNGCHANG;TANG YAWSHING;SUK MIKE |
分类号 |
G11B21/02 |
主分类号 |
G11B21/02 |
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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