Design and optimization of an OPFC ultrasonic linear phased array transducer |
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| Authors: | Ziping Wang Ying Luo Guoqi Zhao Fuh-Gwo Yuan |
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| Affiliation: | 1.84#, Key Laboratory for Mechanical Structure Damage Detection Technology of China Machinery Industry Federation,Jiangsu University,Zhenjiang,China;2.Department of Mechanical and Aerospace Engineering,North Carolina State University,Raleigh,USA;3.Faculty of Civil Engineering and Mechanics,Jiangsu University,Zhenjiang,China |
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| Abstract: | ![]()
In contrast to piezoceramics, orthotropic piezoelectric fibre composites (OPFC) which can be used as actuator/sensor elements in damage detection show clear advantages because of their high sensitivity along the fibre direction and directivity. The focusing acoustic field distribution of the OPFC phased array transducer is analyzed by the finite element method together with directivity analysis in metallic materials. The optimal array parameters such as spacing, width and number of elements are obtained by studying the total displacement changes as various parameters change at the focus point. The feasibility of an OPFC ultrasonic phased array transducer for damage detection is validated. |
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