有限元计算和试验测量结果验证了这一模型对压电振子频率计算的准确性。
The FEM and measured results validated the accuracy of this model in frequency calculation of piezoceramic elements.
为了提高压电泵的效率、优化压电泵的结构，对泵用压电振子的动态特性进行了研究。
In order to improve the efficiency of the piezoelectric pump and optimize its structure, the dynamic characteristics of the piezoelectric actuator were explored.
研究结果表明，当悬臂梁压电振子处于谐振频率状态下振动时，输出电压和功率达到最大。
The results showed that the output voltage and power were maximum at the resonance frequency.
对悬臂梁压电振子的结构设计具有指导意义，为振动能量采收系统的设计提供理论与设计依据。
It has the significance guiding the structural design of piezoelectric cantilever, and provides theory basis for designing vibration energy harvesting system.
为了克服传统泛音比法的这一弊端，提出了测定压电振子厚度振动机电耦合系数的高次泛音比法。
To overcome the shortcoming of the traditional overtone ratio method, a higher overtone ratio method to determine the thickness vibration electromechanical coupling factors was presented.
介绍了两个压电振子所构成的两腔串联和两腔并联压电泵的结构及工作原理，分析了两个压电振子驱动方式(同步工作和交叉工作)对两种结构压电泵输出性能的影响规律。
The structure and working principle of the pumps consisted of two PZT actuators were introduced, and the output performance of the pumps with different structure and driving strategy was analyzed.
利用等效弹性法分析了压电矩形共振器的二维耦合振动，导出了振子共振频率的解析表达式。
Based on the equivalent elasticity method, the plane coupling vibration of a rectangular piezoelectric ceramic plate was studied and the resonant frequency equation was derived out.
采用双垂直热电阻丝，敏感二维角速度； 通过简支边支撑压电泵振子，提高了陀螺的灵敏度；
The sensibility of gyroscope was improved by using two vertical hot wires to sense two-dimensional angular velocity and simply-supported edges to support piezoelectric pump vibrator.
对厚度伸缩压电陶瓷振子的振动状态进行了分析，并得到其等效电路。
The vibration behaviour of piezoelectric ceramic resonators with thickness expansion mode is analyzed and its equivalent circuit is obtained.
它以通常的平板圆形压电晶片作为换能器振子，加上曲面背衬使整个系统达到多共振状态。
It is mainly composed of a PZT plate acting as an oscillator and a curved back liner in order to make the system a state of multi-resonance.
一个压电陶瓷振子含有无限个振模，而常常应用其一个或数个，对于其它不需要的模式，必须加以抑制。
A piezoceramic vibrator has infinite number of vibration modes, but usually only one or a few of them are used and all the other undesirable modes must be suppressed.
对轴向极化压电陶瓷薄圆盘振子径向振动进行了理论和实验研究。
The radial vibration of a thin piezoelectric ceramic disk polarized in the thickness direction is studied.
在考虑压电效应的情况下，本文对压电陶瓷圆形振子的耦合振动进行了研究。
The coupled vibration of piezoelectric ceramic disks was studied when the piezoelectric effect is considered.
采用双压电晶片振子为移动机构的驱动源，提出可以实现二维平面移动的新型压电驱动机构。
A new type of the PZT driving device to realize the planar movement by using the bimorph oscillator as the driver was presented.
基于压电驱动的原理，本文对高频低幅的振动给料技术进行了探索，研制出一种具有长环形输送振子的行波型超声物料输送装置的模型样机。
Based on the principle of piezoelectric drive, we make an explorative study of a novel feeding device with vibration of high frequency and low amplitude.
基于压电驱动的原理，本文对高频低幅的振动给料技术进行了探索，研制出一种具有长环形输送振子的行波型超声物料输送装置的模型样机。
Based on the principle of piezoelectric drive, we make an explorative study of a novel feeding device with vibration of high frequency and low amplitude.
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