Properties of the reflection coefficient of an elastic layer with asymmetrical fluid loading

Author

Glitza, O. ; Becker, W.I.

Author_Institution

Dept. of Electr. Eng., Kassel Univ., Germany

Volume

1

fYear

1997

fDate

5-8 Oct 1997

Firstpage

479

Abstract

In this article the behavior of the plane-wave reflection coefficient of an isotropic elastic layer loaded with different fluids on opposite sides is investigated. For this case an analytical expression is given in a highly physical form. Computation of the fundamental mode zeroes and poles show how total transmission spectra are modified if the density or the sound velocity of only one of the fluids changes, while the corresponding parameter of the other remains constant. This case is of considerable interest when Lamb waves are employed for liquid sensing

Keywords

Rayleigh waves; acoustic dispersion; acoustic wave reflection; acoustic wave transmission; acoustic wave velocity; poles and zeros; surface acoustic waves; Lamb waves; Rayleigh wave speed; asymmetrical fluid loading; fluid loaded elastic layer; fundamental mode zeroes and poles; isotropic elastic layer; liquid sensing; plane-wave reflection coefficient; total transmission spectra; velocity dispersion curves; Acoustic reflection; Boundary conditions; Electric variables measurement; Equations; Frequency; Optical reflection; Solids;

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.1997.663067

Filename

663067