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SPICE model for lossy piezoelectric polymers

机译:有损压电聚合物的SPICE模型

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摘要

This work presents the transmission line equivalent model for lossy piezoelectric polymers and its SPICE implementation. The model includes the mechanical/viscoelastic, dielectric/electrical, and piezoelectric/electromechanical losses in a novel way by using complex elastic, dielectric, and piezoelectric constants obtained from the measured impedances of PVDF and PVDF-TrFE samples by nonlinear regression technique. The equivalent circuit parameters are derived from analogies between a lossy electrical transmission line and acoustic wave propagation. The simulated impedance and phase plots of various samples, working in thickness mode, have been shown to agree well with the measured data.
机译:这项工作提出了有损耗压电聚合物的传输线等效模型及其SPICE实现。该模型通过使用复杂的弹性,介电和压电常数,通过非线性回归技术从PVDF和PVDF-TrFE样品的测量阻抗中获得了新颖的方式,包括机械/粘弹性,介电/电和压电/机电损耗。等效电路参数是从有损电传输线和声波传播之间的类比中得出的。在厚度模式下工作的各种样品的模拟阻抗和相位图已经显示出与测量数据非常吻合。

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