查询词典 impedance ratio

The results of the simulation showed that the GMI ratio for a sandwich structured film sandwiching high conductive metal layer was several times lager than that for a monofilm, and the maximum impedance change ratio occurred at the frequency of about 10 MHz which was lower than that of single layer film.

模拟的结果表明，中间夹高导电性材料的F/M/F型三明治薄膜的巨磁阻抗效应比同样厚度的单层磁性薄膜的巨磁阻抗效应要大很多，而且三明治薄膜出现阻抗最大变化时的频率大概在10MHz左右，比单层薄膜要低得多。

In order to reduce the effect of probe errors in near-field antenna measurement, the solutions are proposed as follows: On the one hand, theoretical formula of probe-compensated is derived; on the other hand, drop-shaped probe is designed and near-zone gain, far-field patterns, axial ratio, main lobe width, input impedance, voltage standing-wave ratio, electromagnetic field and current distribution of probe are obtained through the computer simulation.

针对近场测量中的重要误差源之一&探头&的影响，本文提出解决方法：一方面用探头补偿的方法，根据洛仑兹互易定理和微波网络理论对补偿的解析式进行详细推导；另一方面用两种不同的仿真软件求解终端开口矩形波导探头的近场增益、远场方向图、轴比、主瓣宽度、输入阻抗、电压驻波比、电场分布、磁场分布、表面电流分布等特性参数，可实现探头增益的修正。

The more difference of the impedance ratio or velocity ratio, the better wave isolation is.

对於土壤与填充槽沟材质间之相关影响参数来说，土壤与填充槽沟材质间之阻抗比差异越大，对於震波阻隔效果越佳。

C Over a frequency range of 0 – 100 kHz, the measurement circuitry is to have a frequency response (ratio of indicated to actual value of current) that is equal to the ratio of the impedance of 1500 ohm resistor shunted by a 0.15 F capacitor to 1500 ohms.

频 率高于0-100KHz，测量电路有一个频率响应(标记电流和实际电流的比值)并且等于1500的输入阻抗并联上一个0.15F ，的电容与1500的比值。

First , measure the open circuit voltage and short circuit current to get the current system impedance, then force the apparent load impedance to match it to make the solar system working on maximum power point.

而如何有效的取得太阳电池的开路电压及短路电流，以便正确计算出太阳电池的内部阻抗则为本论文研究重点。

We use the single chip PIC18F452, as the center control circuit, and through the measurement of open circuit voltage and short circuit current to get the current system impedance, then force the apparent load impedance to match it to make the solar system working on maximum power point.

本论文使用阻抗匹配法的最大功率点追踪技术，将能有效预知下次的最大功率点位置，使系统维持工作在最大功率点上，达到最大功率输出的目的。

D seismic and logging data of the first mining area in the Xinyi coal mine are dealt with impedance inversion to predict aquosity and watertightness of the top Ordovician limestone and the possible water-rich areas in the aquifer are determined by the impedance values.

本文根据新驿煤矿首采区的三维地震和测井资料，利用波阻抗反演技术预测该区奥陶系灰岩顶部的含隔水性，并依据波阻抗值的大小圈定含水层中的可能富水区。

Employing FDTD method to calculate the twin strip line characteristic impedance, comparing the result against the microstrip line characteristic impedance .

用FDTD对双带线的特性阻抗进行了计算，并与微带线特性阻抗理论进行比较。

Diode switches or voltage controlled varactors implement dual-band resonators such that they can offer low impedance at the second harmonic of each frequency band, while, in some cases, presenting high impedance at the fundamental frequency as an RF choke circuit.

利用二极体开关或电压控制变容器实施双频共振器以提供在双频操作中每一个频段之二阶谐波的低阻抗，同时在一些实施例里也提供主频段的高阻抗、具有射频阻塞电路作用。

"But if damping factor is a number derived from the speaker impedance, and speaker impedance dances all over the chart, how can damping factor just be a single number?"...

"但是如果阻尼因子是从扬声器的阻抗计算出来的数值，而且扬声器阻抗会在整个图表上跳舞的话，怎么有可能阻尼因子只是一个单一的数字？"。。。

Diabetes is a social disease that affects several million people worldwide.

糖尿病是一个社会性疾病，全世界有数百万人罹患此病。

I'll call you on Friday to see if we can reschedule our luncheon meeting at your convenience.

我星期五会给您打电话在您方便的时候我们重新安排我们的午餐约会。