DocumentCode
882126
Title
Self-resonant piezoelectric thick films for sensing applications
Author
Ferrari, V. ; Marioli, D. ; Taroni, A.
Author_Institution
Dipartimento di Elettronica per l´´Autom., Brescia Univ., Italy
Volume
32
Issue
9
fYear
1996
fDate
4/25/1996 12:00:00 AM
Firstpage
855
Lastpage
856
Abstract
The behaviour of piezoelectric thick films based on a PZT paste screen-printed and fired on alumina substrates has been investigated around their resonant frequencies. Experimental results relative to circular layers are reported, which show the influences on the impedance spectra around resonance owing to lead oxide content in the paste, layer thickness and poling field. These early results suggest that this, so far overlooked region of operation, might be advantageously exploited for sensing applications, stimulating the migration in the low-cost field of thick film technology of operating principles and devices from more costly technologies
Keywords
electric sensing devices; lead compounds; piezoceramics; piezoelectric transducers; thick films; PZT; PZT paste; PbZrO3TiO3; alumina substrates; circular layers; firing; impedance spectra; screen printing; self-resonant piezoelectric thick films; sensors;
fLanguage
English
Journal_Title
Electronics Letters
Publisher
iet
ISSN
0013-5194
Type
jour
DOI
10.1049/el:19960494
Filename
492966
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