由布里渊散射实验可以得到晶体弹性及压电系数。
The elastic and piezoelectric constants of crystal can be obtained by Brillouin scattering.
对铁电薄膜施加一个适当的外力，可以大幅度的提高薄膜的介、压电系数。
The dielectric and piezoelectric responses could be improved by applying an appropriate external stress to the film.
该系统除了可以测试薄膜的位相特性外，还可以用于确定压电薄膜的压电系数，薄膜物理厚度反演等领域。
Versatile applications beyond phase measurement of the apparatus are demonstrated, including piezoelectric coefficient determination and physical thickness retrieval.
晶粒尺寸增加，多孔PZ T陶瓷的介电常数、压电系数和优值增加，并可用Okazaki空间电荷理论解释晶粒尺寸对试样介电和压电性能的影响。
An increase in grain size increases the dielectric constant, piezoelectric coefficient and hydrostatic figures of merit, which can be explained by the Okazaki space-charge theory.
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.
以工程常见四端位移为零的振动板为例，提出一种新的压电式传感器的设计方法测量第一阶声辐射模态伴随系数。
With the examples of the pinned-pinned plate, a new piezoelectric sensor design is presented to measure the first adjoint coefficient of radiation mode.
而压电性能表明在不同方向的机电耦合系数均比石英晶体相应参数大得多。
The piezoelectric property indicates that the electromechanical coupling coefficients in the different directions are much larger than the corresponding parameter of quartz crystal.
大功率压电陶瓷要求材料不但在强场下有小的介质损耗，大的机械品质因数，同时兼备一定的压电常数和机电耦合系数。
High-power piezoelectric ceramics are desirable to combine a high mechanical quality factor(Qm) with a high piezoelectric constant(d 33) and a high planar coupling factor(Kp).
单晶的压电性能测试结果为：平面和厚度机电耦合系数分别为0.69、0.49；
The piezoelectric properties of single crystals as below: piezoelectric coupling coefficient k_p(k_t) are 0.69(0.49);
用微计算机校准压电式加速度计的电荷灵敏度系数是一种快速实用的方法。
In this paper an impact-digital method for calibrating the charge sensitivity of piezoelectric accelerometer is presented. It is a quick and practical method.
随着极化电场的升高，PVDF压电薄膜的压电应变系数升高，介电常数升高，介电损耗降低。
The piezoelectric strain coefficient and the dielectric constant of PVDF films increased, and the dielectric loss decreased with the increasing of the polarization field.
多尔带领的顾问团有一名叫科林·布莱克默的教授说：“证据显示，住在高压电线附近的人，得癌症的危险系数稍微增大了。
Professor Colin Blakemore, a member of Doll's group, said:"The evidence is that there is a slightly elevated risk of cancer near to power lines."
低温度系数高压电阻。
低温度系数高压电阻。
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