Title :
Flying height modulation estimation from pseudo-random readback signal in disk drives
Author :
Zeng, Q.H. ; Chen, M.
Author_Institution :
IBM Almaden Res. Center, San Jose, CA, USA
fDate :
March 30 2003-April 3 2003
Abstract :
In this paper, we present a method that can be used to measure FHM from a pseudo-random readback signal, and apply it to measure a lube induced FHM during read.
Keywords :
digital magnetic recording; disc drives; random number generation; disk drives; lube induced flying height modulation; pseudorandom readback signal; Disk drives; Etching; Fourier transforms; Frequency measurement; Motion measurement; Shape; Testing; Timing; Velocity measurement; Wavelength measurement;
Conference_Titel :
Magnetics Conference, 2003. INTERMAG 2003. IEEE International
Conference_Location :
Boston, MA, USA
Print_ISBN :
0-7803-7647-1
DOI :
10.1109/INTMAG.2003.1230265
