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Lamb wave transducers made of piezoelectric macro-fibre composite
Faculty of Mechanical Engineering and Robotics, Dept of Robotics and Mechatronics,AGH University of Science and Technology, Kraków, Polen.
Faculty of Mechanical Engineering and Robotics, Dept of Robotics and Mechatronics,AGH University of Science and Technology, Kraków, Polen.
Faculty of Mechanical Engineering and Robotics, Dept of Robotics and Mechatronics,AGH University of Science and Technology, Kraków, Polen.
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Signals and Systems Group.
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2013 (English)In: Structural Control and Health Monitoring: The Bulletin of ACS, ISSN 1545-2255, E-ISSN 1545-2263, Vol. 20, no 8, 1138-1158 p.Article in journal (Refereed) Published
Abstract [en]

During recent years, an intensive research activity concerning the application of Lamb waves (LWs) for SHM has been observed. LWs may be generated and sensed using different types of transducers, and their selection is essential for the SHM system's performance. Results of the investigation of three types of transducers based on macro-fiber composite (MFC) are presented in this paper; two types of commercially available MFC actuators are compared with a novel type of custom-designed interdigital transducer also based on the MFC substrate. After a short presentation of the piezoelectric transducer designed for SHM applications, details concerning the proposed interdigital transducer design are provided. Beampatterns of the investigated transducers are first compared using numerical FEM simulations, and next, the numerically obtained beampatterns are verified experimentally using laser vibrometry. In the final part of this paper, advantages and disadvantages of the investigated transducers are discussed.

Place, publisher, year, edition, pages
John Wiley & Sons, 2013. Vol. 20, no 8, 1138-1158 p.
Keyword [en]
structural health monitoring, Lamb waves, piezoelectric transducers, interdigital transducers, macro-fiber composites
National Category
Engineering and Technology
Research subject
Electrical Engineering with specialization in Signal Processing
Identifiers
URN: urn:nbn:se:uu:diva-183086DOI: 10.1002/stc.1523ISI: 000325888700003OAI: oai:DiVA.org:uu-183086DiVA: diva2:561776
Available from: 2012-10-22 Created: 2012-10-22 Last updated: 2017-12-07Bibliographically approved

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Stepinski, Tadeusz

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