驱动点阻抗(也称端口阻抗):在电路或网络的某一对端子(端口)处“看到”的等效阻抗,等于该端口的电压与电流之比,常写为 Z = V/I。在交流条件下它通常是复数,包含电阻与电抗成分。(在更广义的语境里也可指“输入阻抗/端口阻抗”等相关概念。)
例句 / Examples
The driving-point impedance at the input terminals is 50 ohms.
输入端子的驱动点阻抗是 50 欧姆。
To predict stability, the engineer measured the driving-point impedance over frequency and found a capacitive reactance at high frequencies.
为了预测稳定性,工程师测量了随频率变化的驱动点阻抗,并发现高频时呈现电容性电抗。