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双口网络各种等效参数的求解过程往往比较繁琐,尤其是对于正弦激励下含有动态元件的双口网络,由于涉及到相位的计算,计算尤其复杂。介绍利用Multisim强大的仿真功能,对其进行仿真计算,并结合具体实例说明仿真方法,实践证明,该方法简便实用,特别是借助于波特仪和受控电压源构建的相位差测量电路,不仅实现任意电压的相位测量,而且可由波特图仪直接显示,大大提高计算效率。
The process of solving various equivalent parameters of dual-port networks is often complicated, especially for dual-port networks with dynamic components under sinusoidal excitation. Computation is especially complicated due to the calculation of the phase involved. Introducing the powerful simulation function of Multisim, simulating it and combining with concrete examples to illustrate the simulation method. Practice has proved that this method is simple and practical. Especially, the phase difference measurement circuit constructed by means of a potter and a controlled voltage source not only Realize the phase measurement of any voltage, and can be directly displayed by the Potter plotter, greatly improving the computational efficiency.