attenuation constant
英 [əˌtenjʊˈeɪʃn ˈkɒnstənt]
美 [əˌtenjʊˈeɪʃn ˈkɑːnstənt]
衰减常数；减幅常数
双语例句
- 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 - Study on the Relationship between Microwave Attenuation Constant and Concentration of Electrolyte Solutions
微波衰减常数与电解质溶液浓度关系的研究 - By utilizing the matching method of regional electromagnetic field for individual regions, the electromagnetic field distribution in the space of three respective regions is found. And the dispersion equation, coupled impedance and attenuation constant are thence obtained.
利用电磁场分区匹配方法求解了空间电磁场分布，从而导出了色散方程、耦合阻抗和衰减常数的计算公式。 - As an example, the operation frequency of TT C and data transmission ( TTC DT) and the attenuation constant of electromagnetic wave through the blackout zone are estimated.
作为一次练习，估算了测控通信系统的工作频率、电波穿过黑障区的衰减常数； - The operating principle of the compressed electret micromotor is the variable capacitance. The attenuation time constant of the charges on rotor surface is much longer than the shaping time of electret itself while the rotor is made of electret.
扁平驻极体微电机的工作原理是电容可变原理，电机转子采用驻极体材料制成，转子表面电荷的衰减时间常数要比驻极体本身形成的周期长得多。 - The attenuation constant is in proportion to the density of the scattering dots, and also increased with the laser beam energy that records the information dots.
结果表明，波导侧面散射光强沿传导光传播方向的分布呈指数衰减规律，其衰减常数与信息符密度成正比，还随记录信息所用的激光束能量的加大而增长。 - Furthermore, the attenuation caused by the leaky and cutoff effect is determined in the cutoff region and the deduced expression reveals the phenomenon of large attenuation constant but with low radiation efficiency.
根据该准则我们分离出泄漏效应和截止效应各自对衰减常数的贡献，并推导出在截止区内衰减常数的解析表达式.该表达式清楚地显示了截止区中大衰减常数低辐射效率的现象。 - Three expressions of the characteristic impedances, the attenuation constant due to conductor losses and the maximum power handling capability are derived from the approximately simplified field components of the dominant mode in a sectorial waveguide.
根据扇面波导中主模的近似简化场分量表达式，推导出特性阻抗的三种形式，波导壁导体损耗，最大功率容量，截止波长近似式； - The electric properties of coaxial cable, such as its characteristic impedance, screening attenuation, attenuation constant, and loss of echo wave, are related to the physical mechanism of the skim effective resistance, electromagnetic field, distribution parameter.
同轴电缆的特性阻抗、屏蔽衰减、衰减常数、回波损耗等电气性能，涉及到趋肤效应、电磁场、分布参数等物理机制。 - In this paper, an automatic voltage-controlled attenuation method suppressing interference pulse with double time constant, is presented.
本文提出了一种抑制干扰脉冲的开环双重时间常数自动压控衰减法（Dτ-VCA）。 - Theoretical calculation of cutoff wavelength and attenuation constant in elliptic waveguides
椭圆波导的截止波长和衰减常数的理论计算 - Furthermore, the formulae of transmitted power, loss power, attenuation constant and equivalent impedance for TM and TE modes are deduced.
此外，推导出波导TM、TE模的传输功率、损耗功率、衰减常数、等效阻抗等特征参数的边界元公式。 - The eignvalue equation, the attenuation constant a and the field distribution function of the surface wave ( SW) in a conductor-backed lossy dielectric layer are derived.
本文推导了圆柱坐标系下有耗介质涂覆平面导体表面波的场函数和本征方程、每波长径向衰减常数α； - When the attenuation constant of the absorption layer in center did not change, the absorption loss increased with the thickness of the absorption layer.
在中心吸收层的衰减常数不变时，对电磁波的吸收损耗随吸收层厚度增加而增加。 - High Slope Attenuation and Constant Time-Delay Crystal Filter for Digital Communication ── Practice of Phase Compensation
数字通信用陡衰减恒时延晶体滤波器&相位补偿法的实践 - Acoustic emission rate has been measured during proof tests of electric porcelain, the attenuation law of AE rate at constant load has been inferred from fracture mechanics of ceramics.
检测了验收试验时电瓷的声发射计数率，根据陶瓷断裂力学推导了恒定负荷下声发射计数的衰减规律，这一规律被实验结果很好地证实。 - A conformal transformation method is presented to solve a, the attenuation constant of TEM mode transmission line.
本文提出采用保角变换法求解一类TEM模传输线的衰减常数α。 - Propagation characteristic of UHF radio wave in rectangle, circle and arched tunnels is studied in this paper and the computing equation for attenuation constant is deduced.
研究UHF频段的无线电波在矩形、圆形和拱形隧道中的传播特性，推导了衰减常数的计算公式。 - Thus the empirical model is reduced to modified constant γ model ( Gauss attenuation plus constant Ymodel).
这样，模型退化成修正常数γ模型（Gauss衰减加上常数γ）。 - The results of the models verifying reveal that the attenuation time constant in the dynamic response of zinc vapour is very little. The sensitive capability of the self-adaptation of zinc refining system in lead column to fluctuant charge of the condenser is credible.
由模型应用可知铅塔内锌蒸气动态响应过程的衰减时间常数很小，表明铅塔锌精馏系统自适应灵敏度高。 - Important parameters of the transmission lines, such as characteristic impedance, attenuation constant, and quality factor were extracted from the measured S-parameters based on circuit models.
利用分布参数电路模型和测试得到的S参数提取出了特征阻抗、衰减常数、品质因数等传输线基本参数。 - Due to the difficulty in extracting attenuation constant accurately, a new modified compact FDTD method is applied to analyzing lossy interconnect lines to give accurate results.
针对有耗多导体衰减常数难以精确提取的问题，将一种新的改进降维方法应用到有耗互连线系统分析中，可以计算得到衰减常数的准确值。 - The rules of the cold-test characteristics changing with helix pitch are also studied and it turns out that, with increasing helix pitch, the phase velocity increases linearly, the interaction impedance changes nonlinearly and the attenuation constant decreases nonlinearly.
研究表明：相速几乎随螺距增大而线性变大，互作用阻抗与螺距是非线性的关系，衰减常数随螺距增大而非线性地减小； - The relation of directions of phase constant and attenuation constant in conductive media
导电介质中电磁波相移常数与振幅衰减常数的方向关系 - The study result indicates that the attenuation constant and power capacity of ridge waveguide are related to the structural parameter.
研究结果表明：脊波导的衰减常数不仅与频率有关还与其结构参数有一定的关系，脊波导的功率容量与其结构参数有关。 - Considering that the absorbency of Au can not be ignored, the attenuation constant is introduced into the theoretical formula describing the multi-reflection process occurring in the plated dielectric slab ( PDS) model.
考虑到Au的吸收不能被忽略，我们将衰减因子引入PDS模型中描述多次反射过程的理论公式。 - It is found that the principle of microwave attenuation is the reason that causes gain attenuation of XFC. Custom experiments are designed to measure the dynamic gain curve, and the gain attenuation constant is derived.
通过测量样机的动态增益曲线，从微波原理上分析了造成增益衰减的原因，并设计实验测量了增益衰减常数。 - In a word, we can see from that although inverted trapezoid ridge waveguide has bigger attenuation constant, it has bigger power capacity.
由此可见倒梯形脊波导虽然具有相对较大的衰减常数，但同时也具有很大的功率容量，因此可作为一种优良的微波传输线。 - The formulas for computing the radiation pattern is derived based on the ERSs, and the effects of the locations of ERSs and the attenuation constant of the traveling-wave structure on the calculation results of the radiation patterns are analyzed. 4.
推导了基于有效辐射段的辐射方向图计算公式，分析了有效辐射段的位置以及行波结构的衰减常数对辐射方向图计算结果的影响。