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

Volume

25

Issue

5

fYear

1989

fDate

9/1/1989 12:00:00 AM

Firstpage

3725

Lastpage

3727

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;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.42414

Filename

42414