Title :
Functionally graded piezoelectric materials for modal transducers for exciting bulk and surface acoustic waves
Author :
Yang, Jiashi ; Jin, Zhihe ; Li, Jiangyu
Author_Institution :
Sch. of Eng., Ningbo Univ., Ningbo
fDate :
7/1/2008 12:00:00 AM
Abstract :
We show that functionally graded piezoelectric materials can be used to make modal actuators through theoretical analyses of the excitation of extensional motion in an elastic rod and Rayleigh surface waves over an elastic half-plane. The results suggest alternatives with certain advantages for the excitation of bulk and surface acoustic waves.
Keywords :
Rayleigh waves; bulk acoustic wave devices; functionally graded materials; piezoelectric actuators; piezoelectric materials; piezoelectric transducers; rods (structures); surface acoustic wave transducers; Rayleigh surface waves; bulk acoustic waves; elastic rod; extensional motion excitation; functionally graded piezoelectric materials; modal actuators; modal transducers; surface acoustic waves; Acoustic transducers; Acoustic waves; Materials science and technology; Piezoelectric actuators; Piezoelectric films; Piezoelectric materials; Piezoelectric transducers; Stress; Surface acoustic waves; Voltage; Acoustics; Computer Simulation; Computer-Aided Design; Electrochemistry; Equipment Design; Equipment Failure Analysis; Manufactured Materials; Models, Theoretical; Scattering, Radiation; Surface Properties; Transducers; Ultrasonography; Vibration;
Journal_Title :
Ultrasonics, Ferroelectrics, and Frequency Control, IEEE Transactions on
DOI :
10.1109/TUFFC.2008.832
