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).
给出了它们的弹性刚度常数和压电应力常数。
The elastic stiffness constants and piezoelectric stress constants of these crystals have been obtained.
本文从压电学的基本定义出发，推导出两相系0—3型连通性复合压电材料的压电应变常数表达式，进一步修正了T。
This paper deducts the piezo-constant expression of 0-3 type connectivity according to the basic definition of piezoelectricity, and amends the flaw of T.
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.
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.
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.
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