Title :
Operation performance of layered-structure leaky Lamb wave transducer under liquid-loaded condition
Author :
Motegi, Kenji ; Toda, Kohji
Author_Institution :
Dept. of Electron. Eng., Nat. Defense Acad., Yokosuka, Japan
Abstract :
A layered-structure leaky Lamb wave (LLW) interdigital transducer (IDT) under various liquid-loaded conditions is described analytically and experimentally. The LLW transducer, composed of a piezoelectric ceramic and a glass plate, is used for evaluating liquid properties. An equivalent circuit model analysis is carried out to investigate the transducer performance under liquid-loaded conditions. The values of electromechanical coupling coefficient obtained by solving the wave equation are consistent with the values derived from the equivalent circuit model
Keywords :
equivalent circuits; interdigital transducers; piezoceramics; piezoelectric transducers; surface acoustic wave transducers; electromechanical coupling coefficient; equivalent circuit model; glass plate; layered structure leaky Lamb wave interdigital transducer; liquid loading; piezoelectric ceramic; wave equation; Ceramics; Chemical transducers; Circuit analysis; Equivalent circuits; Ethanol; Frequency; Glass; Partial differential equations; Piezoelectric transducers; Ultrasonic transducers;
Conference_Titel :
Ultrasonics Symposium, 1998. Proceedings., 1998 IEEE
Conference_Location :
Sendai
Print_ISBN :
0-7803-4095-7
DOI :
10.1109/ULTSYM.1998.762186
