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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Oliveira, J.E.B. Wu, K.-T. Jen, C.-K. |
| Copyright Year | 2010 |
| Description | Author affiliation: CTA-ITA-IEEC, 12225 Sao Jose Dos Campos, Sao Paulo, Brazil (Oliveira, J.E.B.) || Department of Electrical and Computer Engineering, McGill University, Montreal, Quebec, Canada H3A 2A7 (Wu, K.-T.) || Industrial Materials Institute, National Research Council Canada, Boucherville, Quebec, Canada J4B 6Y4 (Jen, C.-K.) |
| Abstract | Theoretical and experimental studies of ultrasonic wedges which can generate and receive shear horizontal (SH) plate acoustic waves (PAWs) in a metal plate at temperatures up to 200°C are presented. Brass which has a slow shear (S) wave velocity was chosen as the high temperature wedge material. Mode conversion method is used to convert longitudinal (L) waves generated by a high temperature integrated ultrasonic transducer to S waves in the brass wedge. The calculated L to S wave mode energy conversion efficiency is 79.7% with a conversion angle of 64.1°. The S waves in the wedge glued onto a stainless steel (SS) plate with a wedge angle of 42.9° have been converted to SH PAWs in the SS plate. Analytical analysis of the coupling coefficient from the S waves in the wedge to the SH PAWs in the plate is presented. Measurement results demonstrated that SH PAWs using such wedges may be a practical approach for non-destructive testing and structural health monitoring of metal structures. |
| Starting Page | 599 |
| Ending Page | 603 |
| File Size | 1055421 |
| Page Count | 5 |
| File Format | |
| ISBN | 9781457703829 |
| ISSN | 19485727 |
| e-ISBN | 9781457703812 |
| DOI | 10.1109/ULTSYM.2010.5935525 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2010-10-11 |
| Publisher Place | USA |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Transducers Attenuation Probes Metals Acoustic waves Temperature measurement Piezoelectric thick films Ultrasonic wedge Structural health monitoring Non-destructive testing Integrated ultrasonic transducers Plate acoustic waves |
| Content Type | Text |
| Resource Type | Article |
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