Invention Grant
- Patent Title: Disk drive characterizing microactuator by injecting sinusoidal disturbance and evaluating feed-forward compensation values
- Patent Title (中): 磁盘驱动器通过注入正弦波干扰来表征微致动器并评估前馈补偿值
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Application No.: US12606819Application Date: 2009-10-27
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Publication No.: US09142235B1Publication Date: 2015-09-22
- Inventor: Alexander Babinski , Lingfei Zhou , Nathan J. Santee , Chuanwen Ji , Duc T. Phan
- Applicant: Alexander Babinski , Lingfei Zhou , Nathan J. Santee , Chuanwen Ji , Duc T. Phan
- Applicant Address: US CA Irvine
- Assignee: Western Digital Technologies, Inc.
- Current Assignee: Western Digital Technologies, Inc.
- Current Assignee Address: US CA Irvine
- Main IPC: G11B5/596
- IPC: G11B5/596
Abstract:
A disk drive is disclosed comprising a disk having a plurality of tracks, a head, and a voice coil motor (VCM) and a microactuator for actuating the head over the disk in response to a feed-forward compensation value. A sinusoidal disturbance is applied to the microactuator, and the resulting feed-forward compensation value is processed to characterize the microactuator.
Information query
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