1)  piezoelectric stack
叠堆
2)  piezoelectric ceramics
压电叠堆
1.
Theory of sinusoidal pressure produced by the resonance of the liquid in hydraulic pipe excited by piezoelectric ceramics is presented.
介绍了一种利用压电叠堆激励管道内液体介质发生谐振产生正弦压力的发生装置。
2.
In this paper,the laser interferometer is used to measure the micro vibration displacement of noload piezoelectric ceramics under sine voltage excitation.
利用激光干涉仪对空载压电叠堆在正弦电压激励下的振动位移进行了测量,通过它的幅频曲线,初步研究了压电叠堆的振动位移特性及其影响因素。
3)  piezoelectric stack
压电叠堆
1.
Based on different friction coefficients between touchable feet and touchable face when actuator moved toward right and left,a suit of inertial linear actuator driven by piezoelectric stack with changeable friction coefficients was designed and manufactured with piezoelectric stack and mass as power devices.
以压电叠堆和质量块组成的压电叠堆振子为动力元件,通过利用驱动器向左运动和向右运动时接触足与接触面摩擦系数的不同,设计并制作完成了一套摩擦系数变化式压电叠堆惯性直线驱动器。
2.
Based on piezoelectric precision drive technology,a hydro-pump using a piezoelectric stack as actuator and a flexible hinge as magnifieation mechanism was prototyped and tested.
基于压电和精密驱动技术,利用压电叠堆作为驱动器,结合柔性铰链位移放大机构设计了流体泵样机,进行了试验研究。
3.
In the interest of getting good performance of speed and loading capability of the micro motor, at the same time ensuring the high rotary resolution, put forward a kind of new precise rotary motor using piezoelectric stack as actuating element based on inchworm motion.
为了保证微小型电机的速度和承载能力,同时获得较高的运转分辨率,提出一种以压电叠堆为驱动元件基于尺蠖运动原理的新型精密旋转电机方案。
4)  PZT stack
压电叠堆
1.
A new research scheme which applies PZT stack into precision rotary actuator is proposed.
提出一种新型将压电叠堆驱动元件应用到精密旋转驱动器上的研究方案。
2.
Based on the construction analysis of the mechanical structure of the rotary actuator,a mathematical model was built for the precision rotary actuator with the PZT stack as actuating element.
在对驱动器机械结构进行设计分析的基础上,建立了以压电叠堆为驱动元件的精密旋转驱动的数学模型,并对所设计的驱动器样机从旋转运动分辨率、运动稳定性、旋转速度及承载等方面进行了实验测试。
5)  PZT-5 Stack
PZT-5叠堆
6)  Overlaying-welding process
层叠堆焊法
参考词条
补充资料:反应堆与堆内构件振动监测


反应堆与堆内构件振动监测
reactor and internals vibration monitoring

fony旧gdu一yu du旧e一gouJ一on zhendong Jlonee反应堆与堆内构件振动监测(reactor andinternals vibration monitoring)用以监测反应堆压力容器及堆内构件的振动。 安装在压力容器上的4个加速度仪(l个在容器顶盖的螺栓上,3个在容器的下封头的堆芯中子侧t的贯穿管上),其信号与容器的加速度振动成正比。 通过采集堆外四个长中子电离室上部第二段和下部第五段的信号,并将其与反应堆功率成正比的平均注量率信号进行标称化处理,送噪声诊断系统,根据每个电离室各段上的差异,以测定堆内构件的振动,并监测异常情况。利用数据库中已有的数据,可以判断引起这种异常的原因。 堆内构件的振型有两种:梁式和壳式。梁式振型用以监侧嫩料组件和吊篮筒体的振动,这种振动改变了堆内构件结构和中子探侧器之间水层的厚度,导致探测器上侧得的中子注量率随上述结构的振动颇率而变化。 壳式振型用以监测堆内构件热屏的振动,这种振动导致堆芯筒体与热屏之间水层厚度的变化,从而影响中子撞击热屏时的能谱。由于热屏对中子的吸收与其能量有关,从而造成中子探侧器上信号的脉动。
说明:补充资料仅用于学习参考,请勿用于其它任何用途。