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1)  complex piezoelectric vibrator
复合压电振子
1.
Study on sticking layer and making technique for complex piezoelectric vibrator;
复合压电振子粘接层及粘接工艺的研究
2)  composite vibrator
复合振子
1.
The frequency of the two in-plane bending modes will tend to identical by sound designing to the composite vibrator,and the motor w.
该直线超声电机利用了矩形板面内两种弯曲模态的合成,通过对复合振子的合理设计使两弯曲模态频率趋于一致,并通过改变驱动信号的相位差实现电机的往复直线运动。
2.
In this paper, a new composite vibrator of in-plane bending multi-mode ultrasonic linear motor is designed and analyzed by using ANSYS10.
本文设计了一种新型面内弯曲复合模态直线超声电机复合振子,并对其进行有限元模态分析,结果表明只通过改变压电陶瓷厚度H和弹性体主体厚度H1不能找到使其扇形弯曲振动与双曲弯曲振动的固有频率趋近一致的结构尺寸。
3)  Piezoelectric resonator
压电振子
1.
Based on Hamilton principle and modal assumption, the complicated vibration of the piezoelectric resonator is simplified as a simple vibration of a single degree of freedom system, and its electro-mechanical dynamic model is establation force described by a force factor.
基于分析动力学的哈密顿原理,采用模态假定将超声电机压电振子复合结构的复杂振动在模态域内等效成单自由度系统的简单振动;考虑压电陶瓷的压电效应,将压电陶瓷诱发应变的激振力的大小用参数力系数描述,建立了超声电机压电振子的机电耦合动力学模型,通过实例计算与实验结果对比,验证该模型是较准确的,可以在超声电机的初步设计阶段替代有限元分析来确定电机的结构及材质参数,并选定合适的工作频率,从而为超声电机进一步的参数化分析和仿真模型的建立,及结构动力特性优化打下理论基础。
2.
The equation was decoupled through the exciting analysis of the piezoelectric resonator utilizing the piezoelectricity element and material provided by finite-element software.
建立了超声波电动机复合定子的机电耦合有限元动力方程,利用有限元软件提供的压电单元和压电材料,通过对压电振子的激振分析实现方程的解耦,绘制了机电耦合体的导纳曲线,直观地得到了压电振子内节点自由度的分布情况,从而为压电振子的前期设计及解决机电耦合问题提供了一种有效的方法。
4)  piezoelectric vibrator
压电振子
1.
Influence of piezoelectric vibrator and fluid on close noise field of pump;
压电振子及流体对泵近场噪声的影响
2.
Based on the working principle,the piezoelectric pump with active valve was designed and fabricated which used the piezoelectric vibrators as the prime mover and the inlet and outlet valves.
依据工作原理,设计、制作了由压电振子分别作为泵驱动源和进、出口阀的主动阀压电泵,并对泵的驱动信号进行了研究。
3.
A kind of piezoelectric vibrator test system for the electric parameters was studied,This system can test the resonant frequency、quality factor and electromechanical coupling coefficient of piezoelectric vibrator by measuring the relation of Frequency-Impedance of piezoelectric vibrator.
研究了一种压电振子电学性能自动测试系统,系统通过对压电振子频率-阻抗关系的测量得到压电振子的谐振频率、品质因数和机电耦合系数等电学参数。
5)  piezoelectric actuator
压电振子
1.
In order to improve the efficiency of the piezoelectric pump and optimize its structure,the dynamic characteristics of the piezoelectric actuator were explored.
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。
2.
The coupling characteristic was calculated numerically,the influence of the piezoelectric actuator geometry on the piezoelectric-solid-liquid-sound coupling was analyzed emphatically.
针对微雾化器存在的多能域能量耦合问题,建立了压电微雾化器的固-液-声耦合模型,对其耦合特性进行了数值计算,并着重分析了压电振子结构参数对耦合性的影响,得到了压电振子结构参数对于系统的结构振动、声压力波特性的影响规律。
6)  PZT actuator
压电振子
1.
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.
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。
补充资料:点振子振动和点电极振子振动
分子式:
CAS号:

性质:又称点振子振动和点电极振子振动。振动能量绝大部分集中在点电极范围内,形成“能量封闭”的振动模式。振子电极面远小于压电陶瓷片的总面积,且与厚度有适宜的匹配关系。在交变电场作用下,沿厚度方向产生振动,其振幅随着至电极中心距离的增加,呈指数式衰减。谐振频率与压电陶瓷片的厚度有关。为提高频率通常将压电陶瓷片磨得很薄,有时考虑到压电陶瓷自身强度太低,可用特制的陶瓷片作垫片来防止压电陶瓷片损坏。常用于高频场合。

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