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首页> 外文期刊>Journal of Physics, D. Applied Physics: A Europhysics Journal >Non-linear piezoelectric resonance analysis using burst mode: a rigorous solution
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Non-linear piezoelectric resonance analysis using burst mode: a rigorous solution

机译:使用猝发模式的非线性压电谐振分析:严格的解决方案

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摘要

The burst mode experiment is commonly used to measure non-linear piezoelectric material properties. However, the theory that is often employed is highly simplified, making use of linear results. Here we represent a more rigorous theory based closely on the underlying non-linear partial differential equations. Since time domain solutions are not available analytically, the approach is in two parts: the PDE is solved in the frequency domain, then an auxilliary non-linear ordinary differential equation is solved in the time domain. Comparison of the two yields the material parameters. Also, we suggest the excitation portion of the I ( t) curve be studied rather than the decay part normally used since the former contains more features, has a well- defined initial condition ( current and charge both zero) and is less susceptible to experimental artefacts.
机译:突发模式实验通常用于测量非线性压电材料的性能。但是,利用线性结果可以大大简化经常使用的理论。在这里,我们基于基础的非线性偏微分方程表示了一个更为严格的理论。由于无法通过解析获得时域解,因此该方法分为两部分:在频域中求解PDE,然后在时域中求解辅助非线性常微分方程。两者的比较产生了材料参数。此外,我们建议研究I(t)曲线的激励部分,而不是研究通常使用的衰减部分,因为前者包含更多特征,具有明确定义的初始条件(电流和电荷均为零),并且不易受到实验的影响人工制品。

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