Characteristics of Lamb waves in piezoelectric ceramics

Author

Teston, F. ; Feuillard, G. ; Certon, D. ; Janin, Y. ; Tessier, L. ; Lethiecq, M.

Author_Institution

LUSSI, GIP Ultrasons, Tour, France

Volume

1

fYear

1997

fDate

5-8 Oct 1997

Firstpage

363

Abstract

The concept of effective permittivity of a plate is used to calculate the Lamb wave eigenfrequencies. Phase and group velocities as well as the electromechanical coupling coefficient for various electrical boundary conditions are calculated as a function of thickness to wavelength ratio. The theoretical analysis is experimentally verified by measuring the resonant frequencies of Lamb wave delay lines fabricated on Pz27 and Pz34 commercial ceramics

Keywords

permittivity; piezoceramics; surface acoustic wave delay lines; surface acoustic waves; Lamb wave characteristics; Lamb wave delay lines; Lamb wave eigenfrequencies; effective permittivity; electrical boundary conditions; electromechanical coupling coefficient; group velocities; phase velocities; piezoelectric ceramics; plate; resonant frequencies; thickness to wavelength ratio; vibrating modes; Ceramics; Delay lines; Frequency measurement; Metallization; Permittivity; Piezoelectric materials; Resonant frequency; Surface acoustic waves; Testing; Wavelength measurement;

fLanguage

English

Publisher

ieee

Conference_Titel

Ultrasonics Symposium, 1997. Proceedings., 1997 IEEE

Conference_Location

Toronto, Ont.

ISSN

1051-0117

Print_ISBN

0-7803-4153-8

Type

conf

DOI

10.1109/ULTSYM.1997.663040

Filename

663040