High temperature guided acoustic wave transducers using mechanical gratings

Author

Wu, K.-T. ; Liu, W.-L. ; Kobayashi, M. ; Jen, C.-K. ; Ono, Y. ; Takeuchi, M.

Author_Institution

Dept. of Electr. & Comput. Eng., McGill Univ., Montreal, QC, Canada

fYear

2009

fDate

20-23 Sept. 2009

Firstpage

956

Lastpage

959

Abstract

Integrated and flexible guided acoustic wave transducers have been made using line shape mechanical gratings together with sol-gel fabricated integrated ultrasonic transducers at the opposite side. They can be used to generate and receive guided surface and plate acoustic waves and to operate up to 150Â°C. Preliminary results show the potentials of them for nondestructive evaluation and structural health monitoring applications.

Keywords

bulk acoustic wave devices; condition monitoring; sol-gel processing; structural engineering; surface acoustic wave devices; ultrasonic materials testing; ultrasonic transducers; flexible guided acoustic wave transducers; guided surface acoustic waves; high temperature guided acoustic wave transducers; integrated guided acoustic wave transducers; integrated ultrasonic transducers; line shape mechanical gratings; nondestructive evaluation applications; plate acoustic waves; sol-gel fabricated ultrasonic transducers; structural health monitoring applications; Acoustic transducers; Acoustic waves; Gratings; Piezoelectric films; Plasma welding; Spraying; Substrates; Surface acoustic waves; Temperature; Ultrasonic transducers; NDE; array; flexible ultrasonic transducer; high temperature; mechanical gratings; structural health monitoring;

fLanguage

English

Publisher

ieee

Conference_Titel

Ultrasonics Symposium (IUS), 2009 IEEE International

Conference_Location

Rome

ISSN

1948-5719

Print_ISBN

978-1-4244-4389-5

Electronic_ISBN

1948-5719

Type

conf

DOI

10.1109/ULTSYM.2009.5441430

Filename

5441430