基于一阶和二阶电路实现波形变换实验研究  

Experimental Research on Waveform Transformation Based on First-order and Second-order Circuits

作　　者：彭霞 李延平[1] 周细凤[1] 胡鹤宇[1] 陈意军[1] PENG Xia;LI Yanping;ZHOU Xifeng;HU Heyu;CHEN Yijun(College of Electrical and Information,Hunan Institute of Engineering,Xiangtan 411104,China)

机构地区：[1]湖南工程学院电气信息学院,湘潭411104

出　　处：《实验科学与技术》2020年第3期22-26,共5页Experiment Science and Technology

基　　金：湖南省教育科学“十三五”规划省级一般资助课题(XJK016BXX004);教育部高等教育司产学合作协同育人项目(201702008020);湖南省教育厅科学研究项目(18C0715);湖南工程学院青年科研项目(XJ1808)。

摘　　要：在电类专业本科一年级的电工实验课程中,如何将理论与实际应用有效地结合起来是实验案例设计的重点和难点。本实验案例是在一阶、二阶电路响应实验的基础上,针对学生难以将电路参数与电路动态过程建立直观联系的问题,设计的基于一阶、二阶电路实现波形变换研究实验。本实验设计通过搭建简单的一阶、二阶电路,实现由方波信号变换出幅值、频率可调的三角波、锯齿波、正弦波等常用的信号。实施结果表明,通过这样的实验能促进学生对理论知识的深层次掌握,挖掘学生的创造性思维。In the first year of electrical engineering courses for electrical majors, how to effectively combine theory with practical applications is the focus and difficulty of experimental case design. On the basis of first-order and second-order circuit response experiments, aiming at the problem that it is difficult for students to establish an intuitive connection between circuit parameters and the dynamic process of the circuit, a research experiment based on first-order and second-order circuits to realize waveform transformation is designed. In this experimental design, by constructing simple first-order and second-order circuits, the square wave signal can be used to transform triangle wave, sawtooth wave, sine wave and other commonly used signals with adjustable amplitude and frequency. The results of the implementation show that such experiments can promote students’ deep grasp of theoretical knowledge and tap students’ creative thinking.

关 键 词：电工实验案例 一阶电路 二阶电路 波形变换 

分 类 号：TM133[电气工程—电工理论与新技术]