Method for dynamically measuring suspension in-plane and...

Details Method for dynamically measuring suspension in-plane and... Method for dynamically measuring suspension in-plane and...

2005-06-28

2005-06-28

Young, W. R. (Department: 2651)

Dynamic magnetic information storage or retrieval

Monitoring or testing the progress of recording

C360S075000

Reexamination Certificate

active

06912098

ABSTRACT:
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.

REFERENCES:
patent: 5535069 (1996-07-01), Chiao et al.
patent: 5822139 (1998-10-01), Ayabe
patent: 6335840 (2002-01-01), Malone
patent: 2003/0030934 (2003-02-01), Schaff et al.

Affiliated with

Also associated with

Rating

Method for dynamically measuring suspension in-plane and... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method for dynamically measuring suspension in-plane and..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for dynamically measuring suspension in-plane and... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3498987