Non-invasive take-off/touch-down velocity measurements

A new method for take-off/touch-down velocity measurement is presented. The method makes use of frequency jitter in the readback signal, is non-invasive, can detect a slider sway down to 0.08 nm, and is also useful for glide testing.< >

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Bibliographic Details
Published in:IEEE transactions on magnetics 1994-11, Vol.30 (6), p.4164-4166
Main Authors: Klaassen, K.B., van Peppen, J.C.L., Eaton, R.E.
Format: Article
Language:English
Subjects:
Acoustic measurements
Acoustic sensors
Band pass filters
Calibration
Computer crashes
Disk drives
Disk recording
Frequency
Hard disks
Velocity measurement
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Description
Summary:A new method for take-off/touch-down velocity measurement is presented. The method makes use of frequency jitter in the readback signal, is non-invasive, can detect a slider sway down to 0.08 nm, and is also useful for glide testing.< >
ISSN:0018-9464
1941-0069
DOI:10.1109/20.334023