Title :
Non-invasive take-off/touch-down velocity measurements
Author :
Klaassen, K.B. ; van Peppen, J.C.L. ; Eaton, R.E.
Author_Institution :
Res. Div., IBM Almaden Res. Center, San Jose, CA, USA
fDate :
11/1/1994 12:00:00 AM
Abstract :
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
Keywords :
jitter; magnetic heads; velocity measurement; 0.08 nm; frequency jitter; glide testing; noninvasive measurements; readback signal; slider sway detection; take-off velocity measurements; touch-down velocity measurements; Acoustic measurements; Acoustic sensors; Band pass filters; Calibration; Computer crashes; Disk drives; Disk recording; Frequency; Hard disks; Velocity measurement;
Journal_Title :
Magnetics, IEEE Transactions on
