A practicable transistor on-off circuit is presented which can measure capacitance and dielectric constant accurately.
介绍一个实用的晶体管开关电路，用它能够较准确地测定电容和介电常量。
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。
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。
Effective permittivity of dielectric sphere with an eccentric spherical inclusion
含有偏心球形微粒介质球的有效介电常量
The theory and method in measuring accurately the electronic and vacuum dielectric constant of parallel plate capacitor are introduced.
介绍了用电子分析天平测量平行板电容器两极板间的静电力和真空介电常量的原理和方法。
The relationship between the dielectric constant and density of the material may be described by quadratic equations.
密度与介电常量的关系可用二次方程序表示。
The square root and the cubic root of the dielectric constants are linearly related to the volume ratios.
介电常量的二次及三次方根与密度成线性关系。
Using Coaxial Cavity and Coalesce with Perturbation Techniques to Measure Medium's Complex Permittivity
同轴谐振腔及微扰法测量介质介电常数
Design of Measurement System Software for Complex Permittivity Based on LabWindows/CVI and GPIB
基于LabWindows/CVI介质复介电常数的测量系统设计
Measurement of complex permittivity of microwave dielectric materials using TM_(0mn) modes
基于TM_(0mn)模式微波介质材料复介电常数的测量
Measure of Material Permittivity Based on BP Neural Network
基于BP神经网络的材料介电常数测量
The Calculation of Quantum Fluctuation and Dielectric Constants in Incipient Ferroelectrics;
先兆性铁电体中量子涨落及介电常数的计算
Design of Probe for Effective Permittivity Measurement of Chemical Reaction in Dilute Solution;
稀溶液化学反应等效介电常数测量探头设计
Resonance Cavity Perturbation Method for Measuring Dielectric Constant and Application of Matlab;
谐振腔微扰法测量介电常数及Matlab在其中的应用
Study on New Methods to Measure Permittivity of Biological Tissue by Using Open-ended Coaxial-line;
开口同轴线测量介电常数新方法的研究
Measuring the Dielectric Constant of Plant Leaves with Microwave Cavity Perturbation Method;
微波谐振腔微扰法测量植物叶片介电常数
Investigation on Measurements of LTCC Dielectric Constant Using Ring Resonator
谐振环测量低温共烧陶瓷介电常数研究
7600Plus-based and LD-3 Methods of Measuring Dielectric Constant
基于7600Plus和LD-3测量介电常数的几种方法
AC impedance measurement of the dielectric spectra for normal human blood cells
交流阻抗法测量正常人血液细胞介电谱
Study of the Coaxial Probe in Measuring the Permittivity of the RF/Microwave Dielectric;
同轴探头在微波/射频介质材料复介电常数测量应用中的研究
Measurement and Analysis of Radio Frequency and Microwave s Complex Permittivity and Complex Magnetic Permeability for Medium Material;
介质材料的射频和微波复介电常数复磁导率的测量与分析