一阶系统性能测试的理论与实验研究

The academic and experimental study for one order system performance testing

系统的传递函数、时间响应以及频率特性分析是系统分析的主要内容，而一阶系统又是研究较多的一类控制系统。该文以直流电动机和无源滤波网络2个典型的一阶系统为例，讨论了传递函数、系统的时间响应以及频率特性分析方面的内容，并结合仿真软件Matlab，对直流电动机系统的传递函数和无源滤波网络的频率特性进行了仿真分析。通过该项综合实验，可以锻炼学生的实际动手能力和运用计算机进行仿真分析的能力。

Some tools are often used in analyzing system, including in the system transfer function, time response and frequency characteristic analysis. In all of control function, the one order system is often studied. Based on two typical one- order system samples, which are direct current electromotor and passive filter network, the transfer function, time response and frequency characteristic of the two systems are discussed. The software MATLAB was used to deal with experimental results. Based on experiment and simulation analysis, it is not difficult to understand and use the transfer function for direct current electremotor and passive filter network for students. It is a benefit way for students to increase the ability of simulation analysis and practice operation.