Title :
Natural frequencies of sliders and transducers used to detect slider-disk contacts
Author :
Jeong, T.G. ; Bogy, D.B.
Author_Institution :
Dept. of Mech. Eng., California Univ., Berkeley, CA, USA
fDate :
9/1/1989 12:00:00 AM
Abstract :
The natural frequencies of the various transducers and sliders were studied by finite element modeling and experimentation. Finite element analysis shows that the lowest ringing frequency of a 3370 slider is around 310 kHz. This value has been verified by the laser Doppler vibrometer and AE (acoustic emission) measurements. It is determined that the lowest natural frequency of a mini-Winchester slider is around 130 kHz. The 140-kHz frequencies reported in the literature using the two-rail sliders with piezoelectric transducers attached to the slider and the 160-kHz frequencies reported using AE transducers attached to the suspension mount are associated with the natural frequencies of these transducers and not of the sliders
Keywords :
finite element analysis; magnetic disc storage; magnetic heads; transducers; 130 to 310 kHz; 3370 slider; acoustic emission; finite element modeling; laser Doppler vibrometer; mini-Winchester slider; natural frequencies; piezoelectric type; sliders; transducers; two-rail sliders; Acoustic emission; Acoustic measurements; Acoustic signal detection; Acoustic transducers; Finite element methods; Frequency; Laser modes; Piezoelectric transducers; Ring lasers; Vibrometers;
Journal_Title :
Magnetics, IEEE Transactions on
