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Proceedings Paper

Multi-element, high-temperature integrated ultrasonic transducers for structural health monitoring
Author(s): Jocelyn Veilleux; Silvio E. Kruger; Kuo-Ting Wu; Alain Blouin
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Paper Abstract

This paper reports recent developments on high-temperature, multi-element integrated ultrasonic transducers (IUTs). The multi-element IUTs are fabricated from a sol-gel route, where piezoelectric films are deposited, poled and machined into an array of 16 elements. Electrical wiring and insulation are also integrated into a practical, simple high-temperature assembly. These multi-element IUTs show a high potential for structural health monitoring at high temperatures (in the 200-500°C range): they can withstand thermal cycling and shocks, they can be integrated to complex geometries, and they have broadband and suitable operating frequency characteristics with a minimal footprint (no backing needed). The specifics of multi-element transducers, including the phased array approach, for structural health monitoring are discussed.

Paper Details

Date Published: 11 April 2013
PDF: 8 pages
Proc. SPIE 8693, Smart Sensor Phenomena, Technology, Networks, and Systems Integration 2013, 86930I (11 April 2013); doi: 10.1117/12.2009868
Show Author Affiliations
Jocelyn Veilleux, National Research Council Canada (Canada)
Silvio E. Kruger, National Research Council Canada (Canada)
Kuo-Ting Wu, National Research Council Canada (Canada)
Alain Blouin, National Research Council Canada (Canada)

Published in SPIE Proceedings Vol. 8693:
Smart Sensor Phenomena, Technology, Networks, and Systems Integration 2013
Kara J. Peters; Wolfgang Ecke; Theodoros E. Matikas, Editor(s)

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