Flexible ultrasonic transducers using piezoelectric fiber composites with antisymmetric interdigital electrodes

Ching-Chung Yin, Yu Chien Wu, Yu Shyan Liu, Shih Ming Hsu

研究成果: Paper同行評審

2 引文 斯高帕斯(Scopus)

摘要

A conformal ultrasonic transducer constructed by piezoelectric fiber composites (PFC) with new arrangement of electrodes is numerically and experimentally studied. This device is designed to transmit and receive guided waves of constant wavelength for structural health monitoring application. A periodic finite element approach has been used to demonstrate the electric field induced by symmetric or anti-symmetric electrodes as well as working principle of this device interacted with the host plate. The extensional mode of this device is used to actuate both A0 and S0 modes of Lamb waves in the host plate. The added mass effect of PFC has more notable influence on transmission of S0 modes than A0 mode in the area near both edges of PFC. The linear scan of transmitted acoustic waveforms along the axis in front of the transducer by a laser Doppler vibrometer reveals the near-field interference pattern, which is caused by the guided waves of constant wavelength.

原文American English
頁面679-682
頁數4
DOIs
出版狀態Published - 1 12月 2013
事件2013 IEEE International Ultrasonics Symposium, IUS 2013 - Prague, Czech Republic
持續時間: 21 7月 201325 7月 2013

Conference

Conference2013 IEEE International Ultrasonics Symposium, IUS 2013
國家/地區Czech Republic
城市Prague
期間21/07/1325/07/13

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