The active filter acts as an infinite impedance to the external for the fundamental frequency and as a low resistor for harmonic frequencies.
对外电路而言，在基波频率下有源滤波器被控制为无限大阻抗，在谐波频率下被控制为小电阻。
With this system, a study has been made on the correlation between respiratory impedance and dynamic compliance of rabbit, and oscillatory frequency.
利用这一系统，研究了家兔的肺阻抗和动态顺应性与振荡频率的依赖关系。
The regular numerical algorithm is MOM, whose general impedance matrix has a large condition number at the resonance frequency points, which brings an inaccurate result.
常规散射特性计算方法如矩量法中的广义阻抗矩阵在谐振频率点上条件数过大，导致计算不准确。
It is possible for the feed system to have a low impedance, looking downstream from the pressure source at a certain frequency.
在压力源下游，供应系统在某一频率下可能有一低的阻抗。
The paper discusses high frequency discharge with dielectric electrode, emphasizing on the basic issues relating to the influence of frequency, dielectric constant on discharge and impedance match.
本文对具有介质电极的高频放电进行了讨论，对频率、介电常数对放电的影响，阻抗匹配等基本问题进行了探讨。
Show impedance graphs for frequency range.
频率范围显示阻抗图。
The endurance test is a rigorous test for the total performace of a tantalum electrolytic caparitor due to its low impedance, small leakage, high frequency charateristics and high reliability.
钽电解电容器具有阻抗低、漏电流小、高频特性好、可靠性高等特点，而耐久性试验是对电容器产品综合性能最严峻的考验。
In former research the effects of electric contact on signal transmission have relations with a lot of factors, such as contact impedance and the frequency of transmission signal.
以前的研究表明，接触故障对信号传输的影响与很多因素有关，如接触阻抗和信号传输频率。
Secondly, how to choose the switching frequency when bifurcation phenomena occurs is analyzed, besides, the transfer capability is also analyzed using the conception of reflection impedance.
其次，分析了发生频率分叉现象时工作频率该如何选择，并利用反映阻抗的概念分析了变换器的功率传输能力。
The present paper deals with the definition and algorithm of impedance real part equivalent resistivity in horizontal electric double source frequency electromagnetic sounding.
本文讨论了水平电偶源频率电磁测深中阻抗实部等效电阻率的具体定义和算法。
This paper gives a method for analysing and computing the resonant frequency for some commonly used pipe systems by means of the fluid impedance method.
本文利用流体阻抗法对几种常见管系提供了求其固有频率的分析和计算方法。
Showing that frequency is little related to input impedance of the mutual-complementary antenna, antenna of this type is a ultra wide band one.
通过论证自互补结构天线的输入阻抗基本与频率无关的角度证明了该天线具有超宽带特性。
The structural stiffness matrix is the function of frequency because that the impedance function of the pile foundation changes with its frequency.
由于桩基础的阻抗函数随频率变化，所以结构的刚度矩阵也是频率的函数。
The study of geophysical response, such as logging response, seismic facies, amplitude, frequency and wave impedance, is helpful for recognizing and predicting volcanic rock.
通过对该区中生界火山岩的测井、地震相、振幅、频率、波阻抗等地球物理响应研究，来进行岩性识别和储层预测，进而指导勘探部署。
Results: the results showed that the measuring electrode, skin-electrode, contacting impedance, and stimulating frequency all influenced the measured signal.
结果：电极阵列、电极皮肤接触阻抗、激励频率均对检测信号有影响。
The equivalent circuit of the three-gap coupled cavity type output section is given, with which resonant frequency of resonant modes and gap impedance matrix are calculated.
给出了三间隙耦合腔输出回路的等效电路，利用等效电路确定了谐振频率及间隙阻抗矩阵。
Elastic parameter such as impedance, velocity, Poisson ratio etc. and pre-stack amplitude, frequency attributes can be used to quantitatively predict the fracture density and direction.
利用阻抗、速度、泊松比等弹性参数和叠前振幅、频率属性可对裂缝密度和方位进行定量预测。
Improper initial value will result in errors of low frequency component, relative wave impedance and stratum thickness to cause pitfalls of seismic data interpretation.
初位选择不同会出现反演的多解性；初值选择不当，会导致低频分量、相对波阻抗及岩层厚度的错误，产生地震解释的陷附。
And the absence of low frequency information leads to fail to reconstruct the wave impedance.
低频成分的缺失导致重构波阻抗的失败。
高频率低阻抗。
In the process of measuring radio frequency absorb material by vector network analyzer, the impedance of rectanglecoaxial measuring device is mismatched and cause redundant reflection.
在使用矢量网络分析仪对射频吸波材料进行测试的过程中，由于矩形同轴装置阻抗不匹配，将引起不希望有的反射。
The primary errors caused by an impedance mismatch are the frequency response and amount of squarewave ringing.
最初因为不正确的阻抗匹配所导致的数据错误值是在频响方面及方波震铃。
What should be considered for optional high frequency impedance control?
对于可选的高频阻抗控制应该考虑什么？
When the phased array coil designed, such problems have to be taken into account as resonant frequency, impedance match, mutual impedance and et al.
设计相阵控线圈要考虑谐振频率，阻抗匹配，互阻抗等问题。
The relation of the impedance of fundamental frequency and the firing angle is the key factor in firing control of TCSC.
基波阻抗和触发角的关系是可控串补（TCSC）触发控制的关键所在。
The paper describes the principle of impedance transforming. The output network of a ballast and the frequency for each step are designed with this method.
简单论述了阻抗变换法的基本原理，并采用此方法设计了荧光灯电子镇流器输出网络以及各段运行频率。
Using the function between the porosity and the diffusion coefficient and frequency in the diffusion impedance, the finite diffusion model evaluated the porosity.
有限扩散模型则利用孔隙率与扩散系数和频率间的函数关系测定；
Using the function between the porosity and the diffusion coefficient and frequency in the diffusion impedance, the finite diffusion model evaluated the porosity.
有限扩散模型则利用孔隙率与扩散系数和频率间的函数关系测定；
应用推荐