Title :
Ferroelectric polymer transducers for transverse ultrasonic waves
Author :
Ohigashi, H. ; Iwai, S. ; Miya, T. ; Yamamoto, T. ; Yokono, Y. ; Imanaka, T.
Author_Institution :
Dept. of Mater. Sci. & Eng., Yamagata Univ., Yonezawa, Japan
Abstract :
Polymer ultrasonic transducers for 1.5-10 MHz transverse waves were first developed using thickness shear resonators composed of multi-layered lamellar crystalline films or single crystalline films of P(VDF/TrFE), and their performance was evaluated. These transducers can transmit and receive pure shear waves with high efficiency. The S/N ratio of these transducers is higher than that of conventional PZT shear mode transducers. The developed transducers are usable for practical applications such as NDE and physical acoustics after some trivial improvements
Keywords :
ferroelectric materials; ferroelectric thin films; polymer films; ultrasonic transducers; 1.5 to 10 MHz; 1.5-10 MHz transverse waves; P(VDF/TrFE); S/N ratio; ferroelectric polymer transducers; multi-layered lamellar crystalline films; single crystalline films; thickness shear resonators; transverse ultrasonic waves; Acoustic materials; Acoustic transducers; Crystallization; Ferroelectric materials; Optical resonators; Piezoelectric films; Piezoelectric transducers; Polymer films; Resonance; Ultrasonic transducers;
Conference_Titel :
Ultrasonics Symposium, 1998. Proceedings., 1998 IEEE
Conference_Location :
Sendai
Print_ISBN :
0-7803-4095-7
DOI :
10.1109/ULTSYM.1998.765008
