发明名称 |
Method for dynamically measuring suspension in-plane and out-plane thermal drift hard disk drives |
摘要 |
A method for dynamic in-situ characterization of in-plane and out-plane thermal drift of a hard disk drive head suspension is provided. A first data track is written. Amplitude and amplitude modulation of the write data signal are measured and track center is determined. Data tracks are then written for a selected time period. Amplitude and amplitude modulation of the write data signal is measured and a new track center of a last data track is determined. Any difference between the track center of the first data track and the track center of the last data track represents in-plane drift. The amplitude and amplitude modulation of the two write data signals is compared and any difference between the measured values is proportional to out-plane drift.
|
申请公布号 |
US6912098(B2) |
申请公布日期 |
2005.06.28 |
申请号 |
US20030658565 |
申请日期 |
2003.09.08 |
申请人 |
SAMSUNG ELECTRONICS. CO., LTD. |
发明人 |
WANG GENG;LEE SANG Y. |
分类号 |
G11B21/21;G11B5/02;G11B5/596;G11B21/02;G11B27/36;(IPC1-7):G11B5/02 |
主分类号 |
G11B21/21 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|