机电耦合系数

复合材料的平面机电耦合系数Kp与厚度机电耦合系数Kt随着基体中水泥质量分数的增加均先减小后增大。

Both planar electromechanical coupling factor Kp and thickness electromechanical coupling factor Kt decrease initially and then increase .

一种高机电耦合系数高稳定性的压电陶瓷材料

A Piezoelectric Ceramic Material With High Electromechanical Coupling Factor and High Stability

ZnO压电薄膜SAW机电耦合系数的测量

Measurement of SAW Electromechanical Coupling Coefficients of Piezoelectric ZnO Films

脉冲法测压电振子厚度模机电耦合系数kt

Impulse response measurement the electromechanical coupling factor k_t of thickness mode piezoelectric resonator

氧化锌晶体因为ZnO4四面体的不对衬分布，高的介电常数和大的机电耦合系数，使其具有良好的压电性能；

It is a well-known piezoelectric material for its high inductivity and mechanical coupling coefficient .

SAW器件要求具有低延时温度系数、高机电耦合系数和高传播特性的良好基片材料。

SAW devices require good substrate materials with low temperature coefficient of delay , high electromechanical coupling coefficient and fast propagation characteristics . So far .

PZT压电陶瓷机电耦合系数之间的关系

Relationship between various electromechanic coupling factors in PZT system

运用多参数磁测量系统测试了材料的磁致伸缩系数λ、磁感应强度B、动态磁致伸缩系数d33、增量磁导率μ33和磁机电耦合系数k33，研究了磁特性随磁场H的变化规律。

The dependent curves of magnetostriction , added magnetic conductivity and other magnetic parameters on magnetic field were measured by using multiple parameter magnetic measurement system .

传统的石英晶体（QuartzCrystal）滤波器已经不能满足这些要求，因此需要寻找一种机电耦合系数更高、温度性能更好的新型压电材料。

Since the conventional quartz crystal filter can not meet these requirements , new piezoelectric materials with higher electromechanical coupling coefficients and better temperature characteristics have to be found .

这些晶体的室温介电，压电和机电耦合系数是优良的，使它们在铁电和SAW器件应用上有很大价值。

The dielectric , piezoelectric and electromechanical coupling constants of these crystals at room temperature are excellent , which permit them to be of great value to the applications in ferroelectric and SAW devices .

锆钛酸铅（PZT）材料有着优良的压电性能，其薄膜具有高机电耦合系数、高品质因数的特点，适合于制作低插损、大带宽的射频（RF）滤波器。

PZT thin films , characterized by high K t and high Q , are suitable for making low insertion , wide bandwidth RF filters .

低Qm压电振子机电耦合系数的标准计算方法的原理误差分析

Analysis of the Theoretical Error for Electromechanical Coupling Coefficient of Low Q m Piezoelectric Resonator

Tb-Dy-Fe超磁致伸缩合金的动态机电耦合系数

Electromechanical coupling coefficient ( K_33 ) of Tb-Dy-Fe giant magnetostrictive alloy

结果表明：SOLGEL法合成PZT粉制备的PMZN系压电陶瓷材料具有机电耦合系数高，介质损耗小，介电常数与机械品质因数适中等特点；

The results show that the materials which are prepared by sol gel process have high electromechanical coupling coefficients , low dielectric loss and suitability between dielectric constant and mechanical quality factor .

在这种边界条件下，推导了新型弯曲圆盘换能器的有效机电耦合系数、等效集中参数等基本参量，并对瑞利法和ANSYS有限元法进行了对比分析。

In this boundary condition , this paper deduced the effective electro-mechanical coupling coefficient , centralized equivalent parameter and some other basic parameters , and compared the characteristics between Rayleigh method and ANSYS finite method .

ZnO薄膜的高电阻率与单一的C轴结晶择优取向决定了它具有良好的压电常数与机电耦合系数，可用于各种压电、压光、电声、声光器件和表面型气敏元件。

High resistivity ZnO films with a single C-axis preferred orientation determines that it has good piezoelectric constants and electromechanical coupling coefficient , can be used for a variety of piezoelectric , pressure light , electro-acoustic , acousto-optic devices and surface-based gas sensor .

对PZT体积含量为50%的压电薄膜，其压电应变系数、平面机电耦合系数随石墨含量的增大而上升，而机械品质因数下降。

For the piezoelectric film with PZT of 50 % volume fraction , the piezoelectric strain constant , planar electromechanical coupling coefficient increase while the mechanical quality factor decreases with the content of graphite .

254GHz，机电耦合系数为6.68%，带宽20MHz。

The effective electromechanical coupling coefficient is 6.68 % and the bandwidths is 20 MHz .

Pb（Zn1/3Nb2/3）O3（PZN）弛豫铁电陶瓷是一种高介电、高机电耦合系数以及较高居里温度的介质材料。

Relaxor based perovskite lead-zinc-niobate [ Pb ( Zn1 / 3Nb2 / 3 ) O3 , PZN ) ] ferroelectrics have high dielectric constant and good electrostrictive properties as well as relative high Curie temperature .

这种具有晶粒定向结构的BTS极性微晶玻璃，具有较高的机电耦合系数和低的延迟温度系数，在声表面波器件上具有潜在的应用价值。

It shows that BTS polar glass ceramics with grain orientation structure have a potential application in SAW devices for their high SAW coupling coefficient and low temperature coefficient of delay .

首次测量了GdCa4O（BO3）3晶体的全部介电常数、压电应变常数和部分机电耦合系数。

All of the dielectric constants , piezoelectric strain constants , elastic compliance constants and some electroelastic coupling factors of GdCa4O ( BO3 ) 3 singe crystal have been determined for the first time .

声表面波波速在优化切向上随着温度的升高而减小，机电耦合系数及频率延迟系数TCF值呈抛物线增长，束偏向角线性增长。

The results also demonstrate that the velocity of SAW decrease with temperature , the electro-mechanical coupling constant ( k ~ 2 ) and temperature coefficient of frequency is increase parabolically and the power flow angle increase linearly on certain optimal cuts of LGS .

用具有不同机电耦合系数、厚度为半波长的交替排列多层氧化锌薄膜制成了中心频率为8GHz的声体波微波延迟线。

The microwave bulk acoustic delay lines with centre frequency of 8 GHz were fabricated using a multilayer structure consisting of alternative half wave thick layer of ZnO films with different electro mechanical coupling factors .

阻抗电容耦合放大器超磁致伸缩材料机电耦合系数的测量

The Measurement of the Electromechanical Coupling Coefficient of the Giant Magnetostrictive Material

铌酸锂单晶一些振动模式的机电耦合系数

Electromechanical coupling coefficients foe some modes of vibration OP lithium niobate single crystal

有限长压电薄圆管的等效电路和机电耦合系数

The equivalent circuit and the electromechanical coupling factor of the thin piezoelectric cylinders

文中还给出了截面扭转系数以及压电陶瓷细棒扭转振动的机电耦合系数等概念。

Rod in torsional vibration were also introduced .

压电元件机电耦合系数定义研究

Study on Electromechanical Coupling Coefficient of Piezoelectric Components

压电材料的机电耦合系数通常由谐振及反谐振频率之间的相对间隔确定。

The electromechanical coupling coefficient is usually determined from the relative frequency spacing of the resonance and anti resonance .

本文给出了径向极化薄压电圆管的等效电路和机电耦合系数。

This paper reports the equivalent circuit and the electromechanical coupling factor of the radially polarized thin piezoelectric cylinders .