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

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Proceedings titleSPIE Proceedings
ConferenceSPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, March 10-14, 2013, San Diego, California, USA
AbstractThis 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.
Publication date
AffiliationEnergy, Mining and Environment; National Research Council Canada
Peer reviewedNo
NRC number53215
NPARC number21268472
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Record identifier6e27e29e-cf06-444d-83e8-a5d2b47e9325
Record created2013-07-25
Record modified2016-05-09
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