Fundamental study on a thin-film AE sensor for measurement of behavior of a multi-pad contact slider

Author

Imai, Satomitsu ; Burger, Gert-Jan ; Lammerink, T.S.J. ; Fluitman, J.H.J.

Author_Institution

Data Storage & Retrieval Syst. Div., Hitachi Ltd., Odawara, Japan

Volume

32

Issue

5

fYear

1996

fDate

9/1/1996 12:00:00 AM

Firstpage

3675

Lastpage

3677

Abstract

To study the fundamental dynamic characteristics of a multi-pad slider for contact recording, we developed a thin-film piezoelectric acoustic emission array sensor on an Si-suspension with an array pattern similar to that of contact pads. Experiments showed that the sensitivity of the sensor is about 0.11 V/N (slider thickness: 0.2 mm) and that each array sensor designed here is not influenced by the acoustic waves which occur due to contact with other contact pads, so the contact or non-contact condition of each pad can be measured

Keywords

acoustic emission testing; acoustic transducer arrays; magnetic recording; mechanical contact; Si-suspension; contact recording; dynamic characteristics; multi-pad slider; thin-film piezoelectric acoustic emission array sensor; Acoustic arrays; Acoustic emission; Acoustic measurements; Acoustic sensors; Acoustic waves; Piezoelectric films; Sensor arrays; Sensor phenomena and characterization; Thickness measurement; Thin film sensors;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.538725

Filename

538725