Wave-based sensor responses with embedded electrode layouts
Wave-based sensor responses with embedded electrode layouts
复制标题
DOI：
10.1117/12.2658076
复制
发表时间：
2023-04
期刊：
影响因子：
--
通讯作者：
Rishikesh Srinivasaraghavan Govindarajan;F. Madiyar;Daewon Kim
中科院分区：
文献类型：
--
作者：
Rishikesh Srinivasaraghavan Govindarajan;F. Madiyar;Daewon Kim
基于声波的设备由于其无源和无线能力而引起了更大的关注，特别是在航空航天和生物医学领域。数字间换能器（IDT）是基于SHM波的传感器的重要组成部分，因为它可以传递结构状态的信息。此外，将电极嵌入压电衬底中增加了声学耦合，并保护电极免受潜在的外部损伤。本文采用数值分析方法讨论了不同IDT布局下传感器在频域和时域上的响应。结果研究了每种类型对机械应变的敏感性和优值，这有助于通过先进的增材制造技术开发高效的嵌入式电极传感器。
Acoustic wave-based devices have attracted greater attention, particularly in the aerospace and bio-medical fields due to their passive and wireless capabilities. Interdigital transducer (IDT) is an integral part of the SHM wave-based sensor, as it transmits information about the structural state. Additionally, embedding the electrodes inside the piezoelectric substrate increases the acoustic coupling and protects the electrodes from potential external damage. This paper uses numerical analysis to discuss sensor responses with different IDT layouts in both frequency and time domains. The results investigate each type’s sensitivity towards mechanical strains and figure of merit, which facilitates the development of an efficient embedded electrode sensor through advanced additive manufacturing techniques.