High temperature integrated ultrasonic transducers for engine condition monitoring

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Proceedings title2009 Cansmart Workshop
Conference12th Cansmart Meeting International workshop on Smart Materials and Structures, October 22-23, 2009, Montreal, Québec, Canada
Pages197205; # of pages: 9
SubjectStructural health monitoring; non-destructive evaluation; integrated ultrasonic transducers; turbojet engine; piezoelectric thick films; sol-gel process
AbstractEmploying a portable on-site fabrication kit, high temperature integrated ultrasonic transducers (IUTs) made of bismuth titanate piezoelectric film, of thickness greater than 50 µm, have been caoted directly onto a modified CF700 turbojet engine outer casing, oil sump and supply lines and gaskets using sol-gel spray technology. Transducers top electrodes, electrical wires, conducting adhesive bond, connectors and cables have all been successfully tested for temperatures up to 500°C. The excellent ultrasonic performance of these IUTs is demonstrated in this paper and the potential applications for the non-intrusive real-time temperature and lubricant oil quality and metal debris monitoring have been identified and discussed.
Publication date
AffiliationNRC Industrial Materials Institute; NRC Institute for Aerospace Research; National Research Council Canada
Peer reviewedNo
NRC number52385
NPARC number18398978
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Record identifier3078d363-544b-4ac2-88f9-90570a98e4f0
Record created2011-08-16
Record modified2016-05-09
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