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首页> 外文期刊>IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control >Equivalent network representation for thickness vibration modes inpiezoelectric plates with a linearly graded parameter
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Equivalent network representation for thickness vibration modes inpiezoelectric plates with a linearly graded parameter

机译：具有线性渐变参数的压电板厚度振动模式的等效网络表示

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摘要

Equivalent network representation is derived for thicknessnvibration modes in piezoelectric plates with a linearly gradednparameter. The network is composed of a transmission line of a finitenlength, which is linked to the electric excitation port via idealntransformers connected serially at both ends. The ratios of the twontransformers are different from each other and frequency dependent. Twonfrequency-dependent capacitors of the same value but opposite signnappear at the electric port. The frequency characteristic of the inputnelectric admittance of the resonator, which shows the unique feature ofnthe graded piezoelectric plate, is demonstrated by the equivalentnnetwork analysis
机译：推导具有线性梯度dn参数的压电板厚度振动模式的等效网络表示。该网络由有限长度的传输线组成，该传输线通过两端串联的理想变压器连接到电激励端口。两个n变压器的比率互不相同，并且与频率有关。在电端口处出现两个具有相同值但符号相反的随频率变化的电容器。等效网络分析表明了谐振器输入电导率的频率特性，表明了梯度压电板的独特之处。

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