1) inversion of polarizability
极化极性反转
2) polarization reversal
极化反转
1.
It was speculated therefore,the“six site potential”is not very appreciative for describing the polarization reversal in these ferroelectric copolymers.
由此推论“六阱势”理论不是描述这种有机铁电共聚物极化反转的合适的理论模型。
2.
By means of impedance analyzer and iterative method, the polarization reversal process of Pb (Mg1/3Nb2/3)0.
455O3压电陶瓷的极化反转过程进行了研究。
3.
The polarization reversal characteristics of(Pb1-xSrx)TiO3 ferroelectric thin films were measured by square-wave voltage with double polarity and double impulse.
采用磁控溅射技术在Si基底上制备了(Pb1-xSrx)TiO3(简称PST)铁电薄膜,采用双极性、双脉冲方波电压测试了其极化反转特性。
3) polarization switching
极化反转
1.
A nonlinear constitutive model for piezoelectric ceramics is proposed, in which the polarization switching and electric saturation are taken into account.
提出了一个简单的包含有极化反转及电饱和影响的压电材料的本构模型。
2.
In this work, the influences of thickness and grain size on ferroelectric, polarization switching current have been studied in experiments and theoretical analyses.
本论文主要针对FRAM用PZT 铁电薄膜进行了研究,对薄膜厚度和晶粒尺寸与薄膜的铁电性和极化反转电流的关系进行了实验和理论分析。
3.
The electron emission from the diode is the result of polarization switching of the ferroelectric cathode.
铁电阴极二极管电子发射过程中极化反转起决定性作用，场致发射电流可以忽略，等离子体爆炸发射在极化电场达到一定强度时发生，阴极发射能力与极化电场间满足幂为3的指数关系。
4) polarization switch
极化反转
1.
An equivalent circuit of ferroelectrics in response with fast and slow polarization effect was given, and can be used to analyze the polarization switch signal of TGS crystal.
给出快效应和慢效应的等效电路,并对ＴＧＳ单晶的脉冲极化反转实验结果进行了定量计算和定性分析。
2.
Dynamics theory of ferroelectric polarons, which was developed from the shielding theory of ferroelectricity, is used to explain the polarization switch of ferroelectricity.
在铁电屏蔽理论的基础上发展铁电极化子动力学理论 ,用来解释铁电体的极化反转现象 。
5) reverse-poled
反转极化
1.
The refractive index changes induced by the linear electro-optic effect in normal-poled and reverse-poled LiNbO_3 wave-guides were calculated,and the results that show the refractive index changes in two arms are opposite to each other when the electric field is applied in +z direction,which agree with the experimental results.
对正常型和反转极化型LiNbO3 波导在任意方向加电场 ,由线性电光效应引起的折射率的变化做了计算分析 ,结果发现只有在z方向加电场 ,LiNbO3 两波导臂折射率的变化才是完全相反的。
6) polarity reversal
极性反转
1.
In order to analyze the electrical field distribution of the converter transformer,the simulation model of oil-paper combination is established,and the maximal field intensity positions of the insulation under different excited voltages such as DC field,AC field,superimposed AC-DC field and a polarity reversal voltage are emulated with FEM(Finite Element Method).
并在分析阀侧绕组励磁电压类型的基础上,利用有限元分析法计算了在交流、直流、交直流叠加和极性反转电压作用下的电场分布,总结了电场分布规律。
2.
Methods The transient process of polarity reversal is analyzed, considering the anisotropic property of oil immersed press board, a new finite element model based on Galerkin method is presented and verified.
方法分析了极性反转的物理过程，针对直流电场的各向异性，应用Ｇａｌｅｒｋｉｎ法建立了该类电场的有限元算法模型，并基于以上工作计算了４种典型的换流变压器端部绝缘结构中极性反转电场的分布。
3.
According to critical angle and polarity reversal of reflection coefficients, eight reflection modes are defined for converted wave and co.
根据有无临界角以及反射系数中有无极性反转,将纵波和转换波反射模式分成8种,并给出了相应的最大炮检距确定原则与方法。
补充资料：布居数反转
分子式：
CAS号：
性质： 又称粒子数反转或布居倒转。在一系统中发生原子能级的再分布，以致产生激光作用。正常情况下，一组原子处于温度平衡体系之中时，处于低能态的原子总是多于高能态的。但是能量的吸收与发射是一种连续过程，不同能态原子的统计分布(布居)保持不变。当抽运能量使这系统受到激励时，分布受到扰动，会出现粒子数反转：高能态的原子数(亦即布居数)比低能态的多。
CAS号：
性质： 又称粒子数反转或布居倒转。在一系统中发生原子能级的再分布，以致产生激光作用。正常情况下，一组原子处于温度平衡体系之中时，处于低能态的原子总是多于高能态的。但是能量的吸收与发射是一种连续过程，不同能态原子的统计分布(布居)保持不变。当抽运能量使这系统受到激励时，分布受到扰动，会出现粒子数反转：高能态的原子数(亦即布居数)比低能态的多。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条