AIRBORNE ULTRASONIC TRANSDUCER

Authors
DURRIS L GOUJON L PELOURSON A GONNARD P BRISSAUD M RICHARD C
Citation
L. Durris et al., AIRBORNE ULTRASONIC TRANSDUCER, Annales de chimie, 20(7-8), 1995, pp. 469-472
Citations number
5
Categorie Soggetti
Chemistry,"Material Science
Journal title
Annales de chimie → ACNP
ISSN journal
01519107
Volume
20
Issue
7-8
Year of publication
1995
Pages
469 - 472
Database
ISI
SICI code
0151-9107(1995)20:7-8<469:AUT>2.0.ZU;2-P
Abstract
A bilaminar consisting of a piezoelectric ceramic disk and a polymer d isk was chosen to build a proximity detector in air. The influences of the polymer and ceramic thicknesses on the transducer dynamic behavio ur are investigated using a finite element model, for various configur ations. The influence of the type of polymer is also studied. Prototyp es functioning at frequencies higher than 200 kHz were built. They all ow detection ranges higher than 2 meters, with a cheap amplifier.