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.
在理想的情况下,当把电压表连接到一个没有电压的、阻抗比较低的电路时,电压表的读数应当为零。
Ideally, when a voltmeter is connected to a relatively low impedance circuit in which no voltages are present, it should read zero.
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。
Figure 2-7 demonstrates the effects of shunt capacitance loading on the input of a typical high impedance voltmeter.
本文归纳出利用对称负载的阻抗角,计算二瓦特计法表读数的一般规律。
This paper concludes general calculative regularity of readings of two-wattmeter method using the impedance Angle of balanced load.
针对该文的算法提出了一种基于节点邻接表的搜索方法,用于搜索环网、形成环网阻抗矩阵而无需进行复杂的编码。
Moreover, a searching method based on the adjacent nodes table is presented to search the loops and obtain its impedance matrix.
针对该文的算法提出了一种基于节点邻接表的搜索方法,用于搜索环网、形成环网阻抗矩阵而无需进行复杂的编码。
Moreover, a searching method based on the adjacent nodes table is presented to search the loops and obtain its impedance matrix.
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