MOSFET的输入二极管是由一个电场控制在门区，因此总是输入阻抗非常高，因为没有正向偏置二极管，以降低输入阻抗。
The MOSFET input diode is controlled by an electric field in the gate region, thus the input impedance is always extremely high because there is no forward biased diode to lower the input impedance.
由于纸张上有无残留痕迹处的阻抗不同，因此可以通过测试纸张有无汗潜指纹纹理处的阻抗，来实现检测纸张上残留痕迹的目的。
Because the resistances between the remaining trace and non-remaining trace are different in paper, we can test remaining trace on paper by testing the resistance of invisible fingerprints of sweat.
由于切换的是高阻抗，所以切换小电流(5.3.1部分)和高阻抗电压(5.2.3部分)时采用的技术也同样适用。
High impedances are being switched, so some of the same switching techniques used when switching low current (Section 5.3.1) and high impedance voltages (Section 5.2.3) are equally applicable here.
有低的差动输出阻抗绝大多数的线路驱动器，同时也固有地有低的共模输出阻抗，这样，低阻抗桥臂几乎无一例外地位于驱动器一侧。
Most line drivers with low differential output impedance will also have inherently low common-mode output impedances, so the low impedance arms of the bridge are almost always at the driver.
是否有做阻抗测试?频率和能力如何?请描述你们怎样控制阻抗和保留的样品?。
Do you perform the impedance test and your capability & frequency?please describe how to control impedance and retain the coupon sample.
数字式电压表通常有10兆欧的输入阻抗。当测量高阻抗电路时﹐可能会有影响。
DVM usually got an input impedance of 10 Mohm. There may be loading effect when measuring high impedance circuit.
X1探头﹕没有衰减﹐输入阻抗跟示波器输入阻抗一样(通常是1兆欧)。由于对测试电路有很大的负载影响﹐所以很少使用这种探头。
X1 probe: no attenuation, input impedance follow that of scope input impedance (usually 1 Mohm). This type of probe is seldom used because of heavy loading effect on circuit under test.
我们还可以看到因为阻尼因子是一个比率值，而且需要负载阻抗已知才能够进行计算，所以阻尼因子必须和某一已知的阻抗同时具明才有意义。
We can also see that because damping factor is a ratio that requires the load impedance to compute it must be stated against some known impedance to be meaningful.
我们还可以看到因为阻尼因子是一个比率值，而且需要负载阻抗已知才能够进行计算，所以阻尼因子必须和某一已知的阻抗同时具明才有意义。
We can also see that because damping factor is a ratio that requires the load impedance to compute, it must be stated against some known impedance to be meaningful.
结果：由实验结果发现，负电容补偿技术虽然无法使恒流源输出阻抗值趋于无穷，但是可使其阻抗值明显增大。
Results the result of experiments shows that: although the negative capacitance compensation technique can't let the output impedance approach to infinite, it can improve it obviously.
分析结果表明：水平方向不均匀土使得箱形基础的各种阻抗均降低，特别是阻抗的虚部。
The results show that the consideration of the inhomogeneous soil results in reductions in the impedance functions, especially in the imaginary parts.
本文提出全矩形线特性阻抗的一个新计算方法，即利用场匹配法导出特性阻抗的闭合式解。
Utilizing the field matching method, we present an analytic formula for calculating the characteristic impedance of rectangular coaxial transmission lines.
而保护意味着使用保持在与高阻抗电路相同电位的附加的低阻抗导体来阻止可能的干扰电压或电流。
Guarding implies the use of an added low impedance conductor, maintained at the same potential as the high impedance circuit, which will intercept any interfering voltage or current.
广义地说，与仪表的反馈阻抗相比，源阻抗应当比较大。
In broader terms, the source impedance should be large compared to the feedback impedance of the meter.
利用自驱动、自传感特性的压电陶瓷片，粘贴在外部结构的表面，结合动态阻抗的概念，提出了一种机电耦合的在线压电阻抗技术用于结构健康诊断。
Combined with impedance concept, a method for on line structure health monitoring based on self sensing piezoelectric patches, which are bonded on the surface of the structure, is presented.
利用高斯数值积分方法，推导了方形活塞辐射阻抗的三重积分表达式，计算了方形活塞声源的辐射阻抗。
Triple integral expression of the radiation impedance of square piston is deduced and the numerical results of the radiation impedance are calculated with the method of Gaussian numerical integral.
在正弦稳态电路中，当负载阻抗与电源内阻抗为共轭匹配时负载获得最大功率传输。
The load obtains the maximum power transmission when loaded impedance and power source internal resistance for conjugate match in sine stable state electric circuit.
还研究了基阵中各阵元自辐射阻抗与互辐射阻抗的计算方法。
And the analytic calculation method of the self radiation impedance and mutual radiation impedance of the transducer array is studied.
确定了模拟心泵输出与人体心输出间以及模型管的终端阻抗与当量动脉的终端阻抗之间必须依从的关系。
The relation between out put of simulated pump and heart, and the relation between terminal impedance of model pipe and of equivalent artery have been formulated.
特性阻抗和影像阻抗是在电路分析中二端口网络部分引入的概念。
The characteristic impedance and image impedance are introduced in two-port networks of circuit analysis.
稀疏脉冲阻抗反演是目前最流行应用的波阻抗反演方法。
Inversion of sparse spike impedance is the most popular method for wave impedance inversion.
定义了单位阻抗功率的新概念，推导了电压幅值随其等值阻抗和单位阻抗功率变化而变化的基本方程序。
A new conception of power per unit impedance is defined and the basic equation to express the variation of load voltage magnitude with the variation of its dynamic equivalent impedance a.
详细讨论了计算有源发射天线阵和有源接收天线阵的自阻抗与互阻抗的公式。
The formulas for calculating the self and mutual impedances of active transmitting array and active receiving array are discussed in detail.
进而提出了耦合器设计原则是在满足带宽要求的前提下，减小配电网络阻抗和耦合器阻抗不匹配产生的衰耗。
On this basis, the couple device's design principle is to decrease the mismatch loss of the network impedance and couple device impedance.
静稳阻抗和低电势阻抗采用正序阻抗，能有效地防止外部短路造成的误动作。
It USES the positive impedance in static stability and low-voltage impedance which can effectively prevent the mal-operation in external faults.
其中重点介绍了PBG的基本概念，分析了PBG的分类、用途和高阻抗表面结构，对高阻抗表面的设计理论做了总结。
The basic conception of PBG is formulated. The classification, use and high impedance ground plane of PBG are analyzed, and design principles of impedance ground plane are generalized.
规定了测量阻抗动作特性和支接阻抗动作特性的适用范围。
It also puts forward the applicable range of measuring impedance and sub circuit impedance action features.
交流阻抗图谱表明材料充电态的电化学阻抗明显低于放电态的电化学阻抗。
The electrochemical impedance spectroscopy diagram shows that the material's electrochemical impedance in the charged state is lower than state of discharged.
发电机中性点运行方式有中性点不接地、小阻抗接地、高阻抗接地、消弧线圈接地。
Generator neutral ground methods include non-ground, low impedance ground, high impedance ground and arc-suppression coil ground.
发电机中性点运行方式有中性点不接地、小阻抗接地、高阻抗接地、消弧线圈接地。
Generator neutral ground methods include non-ground, low impedance ground, high impedance ground and arc-suppression coil ground.
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