The piezoelectric straincoefficient 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。
2
Strain fatigue and stress fatigue are related by the influence coefficient of strain distribution.
通过应变分布影响系数把应变疲劳与应力疲劳联系起来。
3
The permeability coefficient and porosity of rock are updated by volumetric strain.