science of electricity constant

Study on Permittivity and Permeability of Carbon Nanotubes in the Low-frequency Band from 0.5 to 6 GHz;

碳纳米管在0.5~6GHz低频波段的介电常数和磁导率研究

Measurement of microwave permittivity of high-loss materials using coaxial transmission and reflection way;

同轴传输反射法测量高损耗材料微波介电常数

Effect of purification on 2～18GHz complex permittivity and complex permeability of carbon nanotubes;

纯化处理对碳纳米管2～18GHz复介电常数与复磁导率的影响

The preparation and characterization of porous low dielectric constant oligomeric-MSSQ films;

低介电常数甲基倍半硅氧烷多孔膜的制备及表征

An experimental study of dielectric constant of edible oil changed with heated temperature and time;

食用油介电常数随加热时间和温度变化的实验

Calculation of the dielectric constant of pure liquids and liquid mixtures at different temperatures;

不同温度下纯液体和液体混合物介电常数的计算

Applications of dielectric permittivity of grouting material to GPR image identification;

注浆材料介电常数在雷达图像识别中的应用

Study on the depth of investigation changing with resistivity and dielectric permittivity of homogenous half-space in high frequency electromagnetic sounding method.

研究了均匀半空间电阻率和介电常数对高频电磁法 (10 0kHz～ 5 0MHz)的勘探深度的影响。

In addition, the effect of the dielectric permittivity of the working fluid on a single bubble is analyzed.

为探明外加电场作用下,不同工质对强化沸腾换热的影响,本文采用了FC-72、R11、R113和R123四种工质,定量研究了两相系统中汽泡周围电场分布特性,探讨了工质介电常数对汽泡的作用规律。

Relationship between constant of electric resistance and structure parameter in rare earth electrolysis cell was studied through simulation experiment.

通过模拟实验研究了稀土电解槽的电阻常数与其结构参数之间的关系。

At the same frequency,the dielectric coefficient of limestone is influenced obviously by the degree of decency.

采用同轴线终端开路反射法测试系统测量碳酸盐岩(灰岩、白云岩)的介电常数,测试结果表明:碳酸盐岩在25 MHz~100 MHz频段范围内介电常数的频散现象明显;相同频率下,灰岩的风化程度对其介电常数的影响较大,角砾状白云岩的介电常数普遍高于未风化白云岩和灰岩;灰岩介电常数随频率变化的离散性比白云岩更为明显。

Firstly,a laboratory coaxial probe method for measuring dielectric coefficient of dielectric materials are proposed.

首先,提出一种测量介质介电常数的终端开路同轴探头技术,该技术将同轴探头紧贴有导电衬底的介质,通过测量探头终端的反射系数来确定介质的介电常数;然后,通过这种室内同轴探头法,测试在频率为1 GHz范围内,上海地区盾构隧道所使用的两种不同配比惰性浆液在第1天龄期的介电常数值以及一定配比的双浆液在第3天和第14天龄期的介电常数,进而得到在不同频率下电磁波在浆液中精确的传播速度。

complex dielectric permittivity

复电容率, 复介电常数

linear electrical constant of uniform line

均匀线路的线性电常数

Study on Piezoceramics with High Dielectric and High Piezoelectric Coefficient;

高介电、高压电常数压电陶瓷的研究

The Model of Dielectric Constant for Rain and Estimation of Its Parameters;

雨介质的介电常数模型及其参数估计

Techniques for Measuring the Electromagnetic Parameters of Ferroelectric Materials with High Permittivity;

铁电体材料高介电常数测试技术研究

The high dielectric constant is characteristic of hydrogenbonded liquids.

高介电常数具有氢键液体的特征。

Techniques for Measuring the Electromagnetic Parameters of Microwave Materials with High Permittivity in Broad Band

微波高介电常数材料宽频带测试技术

(Mg_(1-x)Zn_x)Al_2O_4 Low Dielectric Constant Microwave Dielectric Ceramics;

（Mg_（1-x）Zn_x）Al_2O_4低介电常数微波介质陶瓷

Investigation on Permittivity Measurement Methods of Microwave Dielectric Materials;

微波介质材料介电常数测试方法研究

Mechanism Behind the Large Dielectric Constant of the CaCu_3Ti_4O_(12) Ceramics;

CaCu_3Ti_4O_（12）陶瓷高介电常数产生机理的研究

Study on the Polyethersulfone Based Composites with High Dielectric Constant

聚醚砜基高介电常数复合材料的研究

logarithmic fast time constant circuit

对数短时间常数电路

ON WEIGHTED ADDITIVE CONSTANT AND MULTIPLICATION CONSTANT IN VERIFICATION OF ELECTRO-OPTICAL DISTANCE MEASUREMENT

光电测距检定中带权加常数与乘常数分析

The condition of occurring current oscillation is that inductive time constant is the greater than the half of the capacitive time constant.

发生电流振荡的条件是电感时间常数大于电容时间常数的一半.

Test methods for electroelastic constants of piezoelectric crystals

GB/T12634-1990压电晶体电弹常数测试方法

The back EMF constant and torque constant are analyzed. The calculating formulas are gived.

分析了电机的反电势常数和力矩常数,并给出了计算公式;

Ionization Balance Constant of Weak Electrolyte Determined by Conductance Method;

电导法测定弱电解质醋酸的电离平衡常数

Methods of measurement of attenuation constant for radio-frequency cables

GB/T4098.4-1983射频电缆衰减常数测量方法