查询词典 impedance

The basic concept and modeling of PDS are firstly narrated, then the method of calculating target impedance of a circuit PDS is introduced. At last a simulating and analyzing method using SPECCTRA Quest PI is put forward to verify the PDS.

结合PDS在不同频率时存在不同的输入阻抗，介绍了如何计算电源分配系统目标阻抗的方法，通过SPEC-CTRA Quest Power Integrity软件对电路的电源分配系统目标阻抗进行了仿真与分析。

It simulates the circuit breaker with a zero impedance branch, and adopts the linear network characteristic and theory, variable structure and variable parameter analyses to transfer the short-circuit current flow in the bus-bar equality into each side of circuit breaker, and deduces the sequence component model and algorithm for calculating the short-circuit current of circuit breaker when the short-circuit fault occu...

该方法将断路器作为一条阻抗为零的支路来模拟，运用线性网络特性、定理及变结构与变参数的分析方法，将母线上短路时的短路电流等值转移到断路器两侧，导出了相当于在断路器两侧分别发生短路故障时，流过断路器的短路电流的序分量模型和算法。

Because of the limitations of the tradional analysis methods for magnetotelluric impedance, the universal canonical decomposition has been proposed.

鉴于大地电磁阻抗张量传统分析方法的局限性，提出了普遍适用的正则分解方法。

The existence of fault resistance may add an additional reactive or capacitive component to the impedance seen by the protection.

在双电源系统中，由于对侧系统助增电流的影响，保护测量到的阻抗会偏离故障线路的实际值，从而引起距离保护发生超越或缩短保护距离。

The existence of fault resistance may add an additional reactive or capacitive component to the measured impedance seen by the protection.

距离保护测量到的阻抗由于受对侧系统助增电流的影响会偏离故障线路的实际值，从而引起距离保护发生超越或者缩短保护距离。

Secondly, the discharge characteristics were investigated. As the RF power was switched on and the matching impedance suitably set, a pale-purple glow was initially generated near the wall. With increasing RF power, the pale glow evolved into bright white glow. Analysis of voltage and current wave forms suggested that both the voltage and current wave forms are predominately sinusoidal and discharge cycle was above 100 nanoseconds. Current-voltage curve showed that discharge current increase as voltage increase without any abrupt; The current-voltage phase angle suggested that the plasma evolved from being predominately capacitive to predominately resistive. Discharge mode was essential an abnormal glow discharge plasma.

其次对装置的放电特性进行了分析，从放电的现象看，随着放电功率的提高，放电颜色由开始的暗紫色过渡到亮白色；从电流-电压波形曲线图发现所有的放电电流和电压曲线都是正弦曲线，放电的周期达到上百个纳秒；从电流—电压曲线分析，电流随着电压的增长而增长，并没有发现任何的突变现象；从电压—电流相位角来看，随着电流的增大，相位角基本保持不变，整个电路表现出容性放电性质，但是电阻性成分已经很强，属于反常辉光放电区域。

The results show that in subsynchronous frequencies range the transmission line compensated by the SSSC causes a resonant impedance effect similar to that caused by the fixed capacitors. But the value of the capacitive reactance exhibited by SSSC is smaller than that of the fixed capacitors and the additional resistance component is exhibited by SSSC.

研究表明：次同步频率下串有SSSC支路的阻抗特性与串有等值电容支路的阻抗特性相似，但SSSC所呈现的容抗小于固定电容的容抗，且SSSC还呈现较大的电阻分量。

The research offers a basis for the clinical application of reconstructed impedance differential cardiogram.

本研究可为重建心阻抗图的临床应用提供基础。

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。

AIM: To name the basic waves of reconstructed impedance differential cardiogram, and to investigate the amplitude and time interval of the waves.

目的：对重建心阻抗微分图的基本波命名，探讨有关波幅和时间间期。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了