Self-resonant piezoelectric thick films for sensing applications

被引:6
作者
Ferrari, V
Marioli, D
Taroni, A
机构
[1] Dipto. Elettron. per l'Automazione, Facoltà di Ingegneria, Univ. degli Studi Brescia, I-25123 Brescia
关键词
thick film devices; sensors; piezoelectric devices;
D O I
10.1049/el:19960494
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
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.
引用
收藏
页码:855 / 856
页数:2
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