Title :
High frequency properties of new fine-grained modified lead titanate ceramics [transducers]
Author :
Levassort, F. ; Lethiecq, M. ; Tran-Huu-Hue, L.P. ; Wolny, W.
Author_Institution :
GIP Ultrasons, LUSSI-EIT, Tours, France
Abstract :
Fabrication process is described for transducer applications. The electro-mechanical characterization is performed on the fundamental resonance and the overtones up to 100 MHz. The frequency dependence of parameters is shown. Two transducers are simulated (center frequency of 65 MHz), with a K.L.M. model, to compare the performances obtained when using a piezoelectric copolymer and this MPT ceramic as active elements
Keywords :
lanthanum compounds; lead compounds; piezoceramics; piezoelectric transducers; samarium compounds; 65 MHz; K.L.M. model; MPT ceramic; PbLaSmTiO3; center frequency; electro-mechanical characterization; fine-grained ceramics; frequency dependence; fundamental resonance; high frequency properties; overtones; transducer applications; Bioceramics; Biomedical transducers; Ceramics; Dielectric constant; Fabrication; Frequency dependence; Hip; Piezoelectric transducers; Resonance; Titanium compounds;
Conference_Titel :
Ultrasonics Symposium, 1997. Proceedings., 1997 IEEE
Conference_Location :
Toronto, Ont.
Print_ISBN :
0-7803-4153-8
DOI :
10.1109/ULTSYM.1997.661736
