Research on the Sensing Performance Calibration of Omni-Directional Broadband Interdigital Transducer Based on PVDF Substrate
Research on the Sensing Performance Calibration of Omni-Directional Broadband Interdigital Transducer Based on PVDF Substrate
复制标题
基于PVDF基板的全向宽带叉指传感器传感性能标定研究
DOI：
10.1177/1045389x221096156
复制
发表时间：
2022-05
影响因子：
2.7
通讯作者：
Zhang Yue
中科院分区：
文献类型：
--
作者：
Wang Ziping;Zhou Ai;Hao Donghui;Wang Jiatao;Zhang Yue
结构健康监测对于大型结构的损伤检测具有重要意义。用于激励和接收信号的超声换能器已成为SHM的重要组成部分。传统的压电陶瓷超声换能器存在柔性差、可设计性差等缺点。目前广泛应用于结构健康监测的矩形叉指换能器，由于受结构形状的限制，难以全方位接收信号，且频带宽度窄，检测效率低。在此基础上，提出了采用柔性压电材料PVDF作为基片。结合铝板的色散理论和叉指换能器的设计原理，设计了一种全方位柔性环形PVDF叉指换能器（PVDF-IDT）。该设备由3D打印技术生产。标定了柔性环形PVDF-IDT的灵敏度、频率响应、方向性等性能，为其在结构检测中的应用奠定了基础。
Structural health monitoring (SHM) is of vital importance to the detection of damage in large structures. Ultrasonic transducers used to excite and receive signals have become an important part of SHM. For the traditional PZT ultrasonic transducer, there are some shortcomings such as poor flexibility and designability. Due to the limitation of structure shape, the rectangular interdigital transducers, which are widely used in structural health monitoring, have difficulty in receiving signals in all directions and the frequency bandwidth is narrow and the detection efficiency is low. On this basis, it is proposed to use the flexible piezoelectric material PVDF as the substrate. Combined with the dispersion theory of aluminium plate and the design principle of IDT, an omni-directional flexible annular PVDF Interdigital Transducer (PVDF-IDT) is designed. The device is produced by 3D printing technology. The sensitivity, frequency response, orientation and other performances of the flexible annular PVDF-IDT are calibrated, which lays the foundation for its application in structural inspection.
登录
查看更多内容
影响因子：
4.2
作者：
Nguyen, Kim-Cuong T.;Le, Lawrence H.;Lou, Edmond H. M.
通讯作者：
Lou, Edmond H. M.
影响因子：
9.1
作者：
Sanchez-Romate, Xoan F.;Artigas, Joaquin;Urena, Alejandro
通讯作者：
Urena, Alejandro
DOI：
10.4028/www.scientific.net/ssp.220-221.843
发表时间：
2015-01
期刊：
Solid State Phenomena
影响因子：
--
作者：
M. Manka;A. Martowicz;M. Rosiek;Ł. Ambroziński;T. Uhl
通讯作者：
M. Manka;A. Martowicz;M. Rosiek;Ł. Ambroziński;T. Uhl
影响因子：
2.7
作者：
Sheng Sang;E. Sandgren;Ziping Wang
通讯作者：
Sheng Sang;E. Sandgren;Ziping Wang
DOI：
10.1049/ip-smt:19982213
发表时间：
1998-09
期刊：
--
影响因子：
--
作者：
P. Wilcox;P. Cawley;M. Lowe
通讯作者：
P. Wilcox;P. Cawley;M. Lowe