Title :
Analysis of sandwich transducer consisting of multi-pair of piezoelectric ceramics with losses
Author :
Yan, Zhennan ; Lin, Zhiyun
Author_Institution :
Inst. of Acoust., Acad. Sinica, Beijing
Abstract :
Transducer losses are considered with complex coefficients of piezoelectric ceramics. Equivalent circuits for piezoelectric ceramics with losses and for sandwich transducers with multi-pairs of piezoelectric ceramics are given. A method for measuring the complex coefficients of piezoelectric materials under practical conditions is proposed, and a general program for a one-dimensional composite vibration system with losses is compiled. The theoretical solutions and results of one transducer are compared
Keywords :
equivalent circuits; piezoelectric transducers; ultrasonic transducers; IACAS general program; complex coefficients; equivalent circuits; losses; multi-pair of piezoelectric ceramics; one-dimensional composite vibration system; sandwich transducer; Ceramics; Equivalent circuits; Frequency measurement; Impedance; Loss measurement; Piezoelectric materials; Piezoelectric transducers; Stress measurement; Ultrasonic transducers; Vibration measurement;
Conference_Titel :
Ultrasonics Symposium, 1992. Proceedings., IEEE 1992
Conference_Location :
Tucson, AZ
Print_ISBN :
0-7803-0562-0
DOI :
10.1109/ULTSYM.1992.275986
