传统的电小天线其特点是低输入电阻和低效率。
The small electrical antenna is characteristic of a low input impedance and a low efficiency.
所以需要使用具有高输入电阻的电压表，例如静电计。
Therefore, a voltmeter with high input resistance, such as an electrometer, is required.
求输入电阻是电路理论中的重要内容，在工程实际中有广泛的应用。
It is important and difficult content in Circuit Theory to solve input resistance, which is generally adopted in engineering practice.
仪表的输入电阻应当远远大于源的内阻才能满足对测量准确度的要求。
The meter input resistance should be much higher than the source resistance.
例如，如果希望的准确度为1%，那么表的输入电阻必须比源的电阻高100倍。
For example, if the desired accuracy is 1%, then the meter resistance must be more than 100 times the source resistance.
本文应用叠加原理分析运算放大器的开环输入电阻对反相比例放大运算精度的影响。
This paper analyses operation accuracy that is influenced by the open input resistance of operation amplifier by means of superposition theorem.
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 typical SourceMeter instrument doesn't have as high an input impedance or as low a current capability as a source-measure unit.
静电计是一个理想的库仑计，因为它具有非常低的输入偏置电流和很高的输入电阻。
An electrometer makes an ideal coulombmeter because it has very low input offset current and high input resistance.
从并联电压负反馈的角度，对输入电阻和输出电阻给出了下列4种方法的定量讨论。
From the negative feedback aspect of the parallel voltage, this paper quantitatively discusses input and output resistances by employing 4 methods.
这里我们考虑的例子是高保真系统中用来驱动扬声器的信号，其典型的输入电阻约为8 欧姆。
The example we can consider here is the signal required to drive the loudspeakers in a "Hi-Fi" system.
第一，其中特别考虑因素，这条赛道的是，两个输入电阻(里)，和两个反馈电阻(RF)的，必须紧密配合。
First among the special considerations for this circuit is that the two input resistors (RI), and the two feedback resistors (RF), must be closely matched.
上面这个电路的另一个优点在于，当电容c1充电完毕后，输入电阻将趋于无穷大，因此可以消除因信号源内阻产生的误差。
An additional advantage of this connection is that input resistance approaches infinity as the capacitor C1 approaches full charge, eliminating errors due to loading of the source resistance.
上面这个电路的另一个优点在于，当电容c1充电完毕后，输入电阻将趋于无穷大，因此可以消除因信号源内阻产生的误差。
An additional advantage of this connection is that input resistance approaches infinity as the capacitor C1 approaches full charge, eliminating errors due to loading of the source resistance.
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