High sensitive piezoelectric transducers for NDE air borne applications

Author

De Espinosa, F. Montero ; Gómez, T.E. ; Albareda, A. ; Pérez, R. ; Casals, J.A.

Author_Institution

Inst. de Acustica, CSIC, Madrid, Spain

Volume

2

fYear

2000

fDate

36800

Firstpage

1073

Abstract

We present work intended to help in the systematization of the manufacturing of piezoelectric transducers for NDT air coupling. Only the piezoelectric and passive materials, together with the construction techniques, are studied. A high driving signal method has been used to select the piezoelectric materials. Flat and spherically-shaped transducers from 500 kHz up to 2.5 MHz made of piezoceramics and 1-3 piezocomposites have been manufactured and tested. Highly porous materials have been used to match the transducers and the scanned structures

Keywords

composite materials; piezoceramics; piezoelectric transducers; porous materials; ultrasonic materials testing; 500 kHz to 2.5 MHz; NDT air coupling; flat transducers; high driving signal method; highly porous materials; nondestructive testing; piezoceramics; piezocomposites; piezoelectric materials; piezoelectric transducers; spherically-shaped transducers; Building materials; Frequency; Inspection; Loss measurement; Piezoelectric materials; Piezoelectric transducers; Pulp manufacturing; Testing; Ultrasonic transducers; Ultrasonic variables measurement;

fLanguage

English

Publisher

ieee

Conference_Titel

Ultrasonics Symposium, 2000 IEEE

Conference_Location

San Juan

ISSN

1051-0117

Print_ISBN

0-7803-6365-5

Type

conf

DOI

10.1109/ULTSYM.2000.921510

Filename

921510