When measuring the charge on a device such as a capacitor, it's important to disable the zero check of the electrometer first, and then connect the capacitor to the high impedance input terminal.
在测量一个器件,如电容器上的电荷时,重要之点是要首先关闭静电计的零点检查功能,然后再将电容器连到高阻抗输入端。
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.
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 input impedance of a rectangular microstrip patch is discussed by this method.
利用本方法对矩形微带贴片的输入阻抗进行了讨论。
It is not in need of buffer stage for cascading because of high input impedance.
因为具有很高的输入阻抗,所以级联时不需缓冲级。
The actual signal distortion levels depend upon input and output signal amplitude, as well as the output load impedance.
实际的信号失真水平取决于输入和输出信号的幅度,以及输出负载阻抗。
The relatively low sensitivity improvement obtained with this preamp could be due to impedance mismatching on the input stage.
相对较低的灵敏度得到改善前置这可能是由于阻抗不匹配的输入阶段。
The method doesn't need to input the far - end equivalent impedance, while the solution is obtained by using the method of least squares, which theoretically ensures high accuracy.
该方法不需要输入对端系统等值阻抗,解算中运用了最小二乘技术,从理论上保证了该测距算法具有较高的测距精度。
DVM usually got an input impedance of 10 Mohm. There may be loading effect when measuring high impedance circuit.
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。
Numerical results show the effects of the lossy medium and antenna parameters on input impedance, which could be used in designing cavity-backed slot antenna.
本文的数值结果分别给出了有耗介质及天线结构参数对输入阻抗的影响,为天线设计提供了依据。
Helical antenna has not only almost identical to the resistive input impedance in broad bandwidth, but also works by the end of super-gain front lobed map in the same frequency band.
螺旋天线不仅在宽频带上具有近乎一致的电阻性输入阻抗,而且在同样的频带上按超增益端射阵的波瓣图工作。
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.
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。
Figure 2-7 demonstrates the effects of shunt capacitance loading on the input of a typical high impedance voltmeter.
图2 - 7说明分流电容对典型的高输入阻抗电压表输入端的影响。
A full-scale analysis of input impedance of the operational amplifier under the state of differential input is given here.
本文对运算放大器在差动输入状态下的输入阻抗问题做了全面的分析。
Electrostatic shielding is provided by surrounding the signal path with a conductor connected to a low impedance point in the circuit, preferably the lo input terminal of the measuring device.
利用连接到电路中一个低阻点的导体,将信号通路包裹起来,即实现了静电屏蔽,该低阻点最好是测量设备的LO输入端子。
It is a voltage-controlled device with high input impedance, which makes it possible to control higher output power with a lower input voltage.
它具有输入阻抗高、电压控制和用低压控制大功率输出的特点。
When the dominant mode TE10 is propagated alone in the rectangular waveguide, expressions for the real and imaginary parts of the input impedance seen by the coaxial line are derived.
当波导只传输主模(te_(10)模)时,求得从同轴线看去的输入阻抗的实部和虚部表达式。
The typical SourceMeter instrument doesn't have as high an input impedance or as low a current capability as a source-measure unit.
典型的数字源表不像源-测量单元那样具有极高输入电阻或极低的弱电流测量能力。
The results for element input impedance, radiation efficiency of space wave, directivity and radiation pattern are presented.
其结果包括阵列单元的输入阻抗、空间波辐射效率、方向性系数和辐射方向图等。
The correct solution can not be obtained for the original input data, even though the impedance matrix is not ill conditioned.
对于原始的输入数据,不可能得到正确的结果,尽管阻抗矩阵并不是病态的。
And insulating ring technology is adopted to further improve input impedance influenced by insulating resistance of printed circuit board.
印刷电路板上加绝缘环,消除了线路板绝缘电阻对放大电路输入阻抗的影响。
In this paper, a method of measuring the input mechanical impedance of the array element (longitudinal vibrating transducer) with square radiation head by using impulse sound tube is proposed.
本文提出了以声脉冲管测量辐射头为方形的一种阵元(纵向振动换能器)的输入力阻抗的方法。
We computed the input impedance of mixer with the first method, and we also discussed the effect of the convergent parameter on improving the convergence with the second method.
用第一种方法求出了混频器的输入阻抗,用第二种方法讨论了收敛参量对改进收敛性的影响。
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。
Values of each segment of this model were adjusted to give an optimum match to aortic input impedance both in values of modulus and phase frequencies.
模型的各段经优化后可使模型与人体动脉系统的输入阻抗的幅频值和相频值相符合。
The noise performance and impedance matching are optimized with RF input parasitic capacitance in consideration.
在考虑输入寄生的前提下,对射频输入端的阻抗匹配和噪声性能进行了优化;
A device which has an extremely high input impedance, low switching speed and low power consumption.
一种高输入阻抗、低开关速度及低功耗的半导体器件。
Balanced micro-strip line is utilized as feed line, printed dipole is adopted as radiation element, and a matching network is employed for tuning the input impedance of the antenna.
该天线采用平衡微带线作馈线,以印刷振子作为辐射单元,末端采用匹配电路对其输入阻抗进行匹配。
The electric characteristic parameters of this novel sleeve antenna are calculated, including the input impedance, voltage standing wave ratio (VSWR), horizontal gain and radiation pattern.
研究了这种新型套筒天线的输入阻抗、电压驻波比(VSWR)、增益及辐射方向图等电特性。
This paper presents a novel concept for system integration at system level, which is to select output impedance of source converter and input impedance of load converter as objects of standardization.
该文提出一种新颖的系统集成的观点,即从系统级的高度将分布式供电系统中的源变换器的输出阻抗和负载变换器的输入阻抗作为标准化研究的对象。
This paper presents a novel concept for system integration at system level, which is to select output impedance of source converter and input impedance of load converter as objects of standardization.
该文提出一种新颖的系统集成的观点,即从系统级的高度将分布式供电系统中的源变换器的输出阻抗和负载变换器的输入阻抗作为标准化研究的对象。
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