电测力计式阻抗表 electrodynamometer type impedance meter
高阻抗表面 high-impedance surface
低阻抗表面阻抗仪 Resistivity Meter
高阻抗表面阻抗分析仪 High Resistivity Meter
微阻抗表 Micro-Resistance Meter
表面阻抗 [电] surface impedance ; Surface Resistivity ; Surface Resistance ; SIR Test
表观阻抗 apparent impedance
表面阻抗测试 SIR ; surface impedance resistance
高阻抗直流电压表 dc high impedance voltmeter
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.
应用推荐