wave impedance

Monitoring of microbial inhibition process by bulk acoustic wave impedance technique and the relative frequency shift response model

用声波阻抗传感技术监测细菌的生长抑制过程及其相应的频移响应模型

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Since the wave impedance of variable frequency motor being significantly greater than the wave impedance of the cable, making variable frequency motor suffer approximately the twice of pulse leading edge voltage, the coil insulation layer of variable frequency motor occurs partial discharge during operation.

由于变频电机的波阻抗明显大于电缆的波阻抗，使得变频电机受到约两倍的脉冲前沿电压，导致变频电机线圈绝缘层在运行过程中发生局部放电。

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By computing wave impedance at trouble spots, the approach to calculate the reflection coefficient and the inter-refraction coefficient of every mode is obtained.

通过求解故障点的等值波阻抗，得到了故障点各模量行波之间相互透射的透射系数以及各个模量行波反射系数的计算方法。

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In the present dissertation, W-Mo-Ti-Mg system flier-plate with graded wave impedance was chosen as the disquisitive object.

论文选用W-Mo-Ti-Mg系波阻抗梯度飞片作为研究对象。

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Analytical solution in frequency domain of dynamic response of thin-wall pipe piles with variable wave impedance under low strain transient concentrated load

变频器在二次方率负载调速中的运用低应变下变阻抗薄壁管桩动力响应频域解析解

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Surface impedance of ferromagnetic metals and spin-wave resonance

铁磁金属的表面阻抗与自旋波共振

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The wave impedance forward modeling technique is a conventional forward method based on reflection coefficient calculation.

波阻抗模型正演技术是一种基于反射系数计算的传统正演技术.

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First of all, base on the theory of coupled-wave, the dispersion equation and coupling condition of spiral corrugated waveguide is realized by applying the method of impedance perturbation.

首先，在耦合波理论基础上运用阻抗微扰法分析了内开槽螺纹波导的冷腔色散特性，通过数值运算作出了冷腔色散曲线同时用三维粒子模拟软件进行了相应的冷腔分析。

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A new method of lithology parameter extraction is presented in terms of elastic wave impedance.

我们依据弹性波阻抗理论,提出了一种岩性参数提取方法.

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Based on the research progress of miniaturized coupler design, a novel tapered stepped-impedance slow-wave loading structure is proposed in this dissertation. With the combination of transmission line theory, microwave network theory, and equivalent circuit theory, an accurate equivalent circuit model is proposed and analyzed.

基于耦合器小型化的研究现状，提出了一种新型的渐变阶梯阻抗慢波加载结构，并且结合传输线理论、微波网络理论、等效电路理论对该新型加载结构进行了准确的建模分析。

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Evaluation and analysis on the post-stack wave impedance inversion technique in com-mon use

常用叠后波阻抗反演技术评析

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A New Surface Acoustic Wave Impedance Sensor and Its Application in Liquid System

一种新型的表面声波阻抗传感器及其在液相体系中的应用

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Design and optimization of wave impedance distribution for flyer materials

梯度飞片材料的波阻抗分布设计与优化

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In the far field, the wave impedance approaches a constant 377 ohm for any current distribution.

任何电流源之远场呈现定值的波阻抗.

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Experimental Study on Wave Impedance and Lame Constant of Reservoir Sandstones

储层砂岩波阻抗及拉梅常数实验研究

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The modeling result demonstrates that the azimuthal interface is also wave impedance interface.

模拟结果表明方位界面也是波阻抗界面.

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Through nu-meral simulation, the variation of P wave elastic impedance with in-cident and azimuthal angle was described; the effect of anisotropic parameters on P wave elastic impedance in arbitrary azimuth and the precision of new approximation formula were analyzed.

通过数值模拟，对纵波弹性阻抗随入射角和方位角的变化特征进行了描述.分析了各向异性参数对不同方位纵波弹性阻抗的影响.以及新近似公式的精度。

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Make perturbation, in terms of these errors, to revise wave impedance mod-el until the errors reduce to minimum.

根据此误差，再作摄动，修改波阻抗模型，直到误差趋于最小为止。

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Objective To investigate the wave shape and wave amplitude of reconstructed impedance volume cardiogram.

目的探讨重建心阻抗容积图的波形、波幅.

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