Multi-element, high-temperature integrated ultrasonic transducers for structural health monitoring

Jocelyn Veilleux; Silvio E. Kruger; Kuo-Ting Wu; Alain Blouin

doi:10.1117/12.2009868

11 April 2013 Multi-element, high-temperature integrated ultrasonic transducers for structural health monitoring

Jocelyn Veilleux, Silvio E. Kruger, Kuo-Ting Wu, Alain Blouin

Proceedings Volume 8693, Smart Sensor Phenomena, Technology, Networks, and Systems Integration 2013; 86930I (2013) https://doi.org/10.1117/12.2009868
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2013, San Diego, California, United States

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.

Citation Download Citation

Jocelyn Veilleux, Silvio E. Kruger, Kuo-Ting Wu, and Alain Blouin "Multi-element, high-temperature integrated ultrasonic transducers for structural health monitoring", Proc. SPIE 8693, Smart Sensor Phenomena, Technology, Networks, and Systems Integration 2013, 86930I (11 April 2013); https://doi.org/10.1117/12.2009868

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