Title :
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
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 150°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;
Conference_Titel :
Ultrasonics Symposium (IUS), 2009 IEEE International
Conference_Location :
Rome
Print_ISBN :
978-1-4244-4389-5
Electronic_ISBN :
1948-5719
DOI :
10.1109/ULTSYM.2009.5441430
