Title :
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
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;
Conference_Titel :
Ultrasonics Symposium, 2000 IEEE
Conference_Location :
San Juan
Print_ISBN :
0-7803-6365-5
DOI :
10.1109/ULTSYM.2000.921510
