PZT换能器的二维机电阻抗模型及实验验证

2016 Symposium on Piezoelectricity, Acoustic Waves, and Device Applications (SPAWDA) Pub Date : 2016-10-01 DOI:10.1109/SPAWDA.2016.7830001

Dansheng Wang, Xiao-meng Zhou, Hong-yuan Song, Hong-ping Zhu

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引用次数: 1

摘要

传统的一维机电阻抗模型将压电陶瓷简化为一根细杆，只考虑轴向振动，忽略其他两个方向的振动。在本研究中，考虑了PZT贴片在x和z方向上的振动，以模拟PZT换能器与主体结构之间的机电耦合相互作用。推导了相应的导纳公式，并进行了PZT贴片的自由振动实验，验证了所提出的二维机电阻抗模型。通过对理论公式和实验结果的比较，可以发现所提出的模型是有效的。

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A two-dimensional electromechanical impedance model and experimental verification of a PZT transducer

The traditional one-dimensional (1D) electromechanical impedance model simplifies the PZT as a thin bar, only considering the vibration in the axial direction, and the vibrations in other two directions are neglected. In this study, the vibrations of the PZT patch in x and z directions are taken into account to model the electromechanical coupling interaction between the PZT transducer and the host structure. The corresponding admittance formula is derived and a free vibration experiment of the PZT patch is carried out to verify the proposed two-dimensional (2D) electromechanical impedance model. It can be found that the proposed model is effective by comparing the theoretical formula and the experimental results.

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来源期刊

2016 Symposium on Piezoelectricity, Acoustic Waves, and Device Applications (SPAWDA)

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