查询词典 piezoelectric

The principle of piezoelectric modal sensor is introduced and the formulas of calculating modal respondence by measured piezoelectric outputs are gained.

介绍了压电模态传感器的实现原理，并给出了由实测压电单元输出得到结构模态响应的计算公式。

And by using the initial conditions as well as the end conditions, the dynamic problem is then transferred to a second kind Volterra integral equation about the function of the axial strain with respect to time which can also be solved successfully by the interpolation method. For piezoelectric and pyroelectric hollow cylinders, by following the solving procedure for elastic hollow cylinder and by using the electric boundary conditions, the dynamic problems are transferred to two Volterra integral equations about two functions of time, one is axial strain and the other is related to electric displacement, which can also be solved efficiently and quickly by employing interpolation method. The elastodynamic solutions of hollow spheres, which are made of elastic, piezoelectric and pyroelectric materials, respectively, for spherically symmetric problems are also obtained.

对于弹性空心圆柱，通过引入一特定函数将非齐次边界条件化为齐次边界条件，然后利用正交展开技术，导出关于时间函数的方程，再结合初始条件和端部边界条件，将原问题转化为关于一个时间函数的第二类Volterra积分方程，运用插值法可给出此积分方程的解；对于压电和热释电空心圆柱，利用求解弹性空心圆柱相似的方法，再结合电学边界条件，原问题转化为关于两个时间函数（轴向应变和与电位移有关的函数）的第二类Volterra积分方程组，同样可用插值法来构造相应的递推公式高效地求解此积分方程组。

In 1954, Jaffe and others successfully developed PbZrO3-PbTiO3 binary system solid solution piezoelectric ceramics, which is lead zirconate titanate piezoelectric ceramics first appear.

1954年，Jaffe等人研制成功了PbZrO3-PbTiO3二元系固溶型压电陶瓷，这就是锆钛酸铅压电陶瓷最早的出现。

This dissertation applies piezoelectric material, lead zirconate titanate, into SPM technology, brings up the novel "thermo-piezoelectric-mechanical" method for data storage and describes its mechanism in detail.

针对上述问题，本论文将压电功能材料锆钛酸铅薄膜应用于SPM技术中，提出了新型的"热-压电-机械"数据存储方法，并对其机理进行了详细论述。

Piezoelectric transformer with many advantages, such as small size, light weight, high efficiency, high voltage step-up ratio, safety, apyrous, lower EMI, no deterioration in shortcut and so on, is suitable for the miniaturization and integration of the control and drive equipment of piezoelectric materials.

压电陶瓷变压器具有效率高，体积小，质量轻，升压比高，无电磁干扰，不易燃，安全稳定及不怕短路等优点，适用于压电材料驱动器控制和驱动装置的小型化和集成化。

In this paper,researches were made on aspace piezoelectric truss.First,based on the piezoelectric theory and FEManalysis and knowledge of active vibration control,theoretical analysis and numerical simulation was carried on.And then,an experiment upon real-time active vibration control of the truss by computer was carried out.

本文以一空间压电桁架结构为切磋工具，应用压电表面、有限元分析和振动自动节制的相干常识，在清楚的表面分析和谋划机仿真的根本上，用尝试验证的方法对空间压电桁架结构的振动进行谋划机及时自动节制。

X-ray diffraction, scanning electronic microscope, impedance analyzer and piezoelectric workstation were used to determine the crystal structure, micrographic topography, dielectric, piezoelectric and ferroelectric properties of NKN—based ceramics.

利用X射线衍射分析、扫描电子显微、HP4294A阻抗分析仪、压电工作站等对这三个系列样品的晶体结构、表面形貌、介电性能、压电性能和铁电性能等进行了深入的分析、研究和对比。

The influence of Zr/Ti on the mechanical and electrical properties ,phase composition,lattice constant of lead niobium stibium zirconate titanatePb(Nb1/2Sb1/2TiO3-PbTiO3-PbZrO3 (Nb1/2Sb1/2=0.02mol piezoelectric ceramics ,in which there are tetragonal and rhombohedral phases coexistent (morphotropic phase boundary,MPB),was studied by conventional containing lead piezoelectric ceramic processing and X-ray diffraction.

借助X-射线衍射仪，采用传统含铅压电陶瓷制备工艺研究了Zr/Ti对准同型相界附近铌锑锆钛酸铅（Pb(Nb1/2Sb1/2)TiO3-PbTiO3-PbZrO3）(Nb1/2Sb1/2=0.02mol压电陶瓷机电性能、相组成和晶格常数的影响。

The Finite Element Method has been widely applied to engineering structures design and mechanics analysis, so it would be signality to apply FEM to piezoelectric ceramics wafer and piezoelectric fiber composites analysis.

有限元法作为一种广泛应用于工程结构设计、力学分析的工具，将它应用于压电材料及压电纤维复合材料的性能分析中具有非常重要的意义。

The just working frequency was obtained by calculation. By transient dynamics analysis applying piezoelectric coupling theory, the transient dynamics properties have been discussed. The analysis result provided a design reference on this kind of valveless piezoelectric pumps that use Cymbal actuators.

通过模态分析得到了Cymbal振子的前5阶固有频率和振型，选出其中最符合工作要求的频率和振型；通过瞬态分析，结合压电耦合分析，得到了振子在方波电压作用下的瞬态动力学特性。

"Yes, now you can give yourself airs," she said, you have got what you wanted.

"对了，您现在高兴了，"她说道，这是您所期待的。

Then the LORD said to me: Rebel Israel is inwardly more just than traitorous Judah.

上主于是对我说：＂失节的以色列比失信的犹大，更显得正义。