基于Multisim的双口网络参数测量的仿真研究

Research on Simulation of Dual-port Network Parameters Measurement Based on Multisim

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 calculation of dual-port network parameters is usually very complex. The calculation will be more complex especially there are capacitors and inductances in the dual-port network with the sine source, since it measures the phase deference. The method of simulation of Multisim is introduced by the particular examples. The results indicate the method is simple and practical. With the help of the circuit of Bode diagram ured and can instrument and the controlled voltage source, phase be showed directly by Bode diagram instrument. The phase deference measurement which is composed of deference measurement of any voltage can be measefficiency of calculation can be improved greatly.