Evaluation of laser probe performances for measuring cross-coupling in 1-3 piezocomposite arrays

Author

Certon, Dominique ; Felix, Nicolas ; Hue, Louis Pascal Tran Huu ; Patat, Frédéric ; Lethiecq, Marc

Author_Institution

GIP Ultrasons, Tours, France

Volume

2

fYear

1999

fDate

1999

Firstpage

1091

Abstract

This paper deals with cross-coupling in 1-3 piezocomposite arrays. Four array configurations are tested. Measurements of surface displacement are performed with a laser interferometer. Experimental results are given with several graphic representation in order to interpret them in terms of cross-coupling mechanisms:temporal displacement profile, time/space and frequency/space cartographies of displacements and dispersion curves of Lamb waves in piezocomposite arrays. Effects of the fluid medium on each of these characteristics are discussed. Effective width of the excited element is determined and all plate modes involved in the mechanical coupling are identified and referenced

Keywords

measurement by laser beam; piezoelectric transducers; probes; surface acoustic wave transducers; ultrasonic transducer arrays; 1-3 piezocomposite arrays; Lamb waves; array configurations; cross-coupling; dispersion curves; fluid medium; frequency/space cartographies; laser interferometer; laser probe performance; mechanical coupling; plate modes; surface displacement; temporal displacement profile; time/space cartographies; Displacement measurement; Electric variables measurement; Frequency; Graphics; Laser modes; Mechanical variables measurement; Optical arrays; Performance evaluation; Probes; Ultrasonic variables measurement;

fLanguage

English

Publisher

ieee

Conference_Titel

Ultrasonics Symposium, 1999. Proceedings. 1999 IEEE

Conference_Location

Caesars Tahoe, NV

ISSN

1051-0117

Print_ISBN

0-7803-5722-1

Type

conf

DOI

10.1109/ULTSYM.1999.849189

Filename

849189