DocumentCode :
432142
Title :
Transmission of acoustic waves through piezoelectric plates: modeling and experiment
Author :
Le Clezio, Emmanuel ; Shuvalov, Alexander
Author_Institution :
Lab. UltraSons Signaux et Instrum., l´´Univ. Francois Rabelais, Blois, France
Volume :
1
fYear :
2004
fDate :
23-27 Aug. 2004
Firstpage :
553
Abstract :
The transmission of acoustic waves through a piezoelectric plate is dealt with theoretically and experimentally. The analytical treatment engages the octet formalism of anisotropic piezoacoustics. A specific version of the plate admittance matrix is introduced, which incorporates the electric boundary conditions for a non-metallized or metallized plate. In consequence, expressions for the reflection and transmission coefficients are reduced to explicitly the same form as in the case of pure elasticity. This theoretical model is then applied for material characterization. Material constants of a Pz27 plate are inferred from the numerical simulations and the experimental results of ultrasonic-transmission measurements. Good agreement is observed with another method based on electrical-impedance measurements. The impact of electrical boundary conditions is visualized by presenting the numerical and experimental transmission spectra through the Pz27 plate with non-metallized and metallized faces.
Keywords :
acoustic wave reflection; acoustic wave transmission; anisotropic media; impedance matrix; piezoelectric materials; acoustic wave transmission; anisotropic piezoacoustics octet formalism; elasticity; electric boundary conditions; electrical-impedance measurements; metallized plate faces; nonmetallized plate; piezoelectric anisotropic plates; plate admittance matrix; reflection coefficients; transmission coefficients; ultrasonic transmission measurements; Acoustic reflection; Acoustic waves; Admittance; Anisotropic magnetoresistance; Boundary conditions; Elasticity; Electric variables measurement; Metallization; Numerical simulation; Ultrasonic variables measurement;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Ultrasonics Symposium, 2004 IEEE
ISSN :
1051-0117
Print_ISBN :
0-7803-8412-1
Type :
conf
DOI :
10.1109/ULTSYM.2004.1417785
Filename :
1417785
Link To Document :
بازگشت