基于模拟元器件波形发生器的综合实验设计与实现  

Design and Implementation of Comprehensive Experiment Based on Analog Component Waveform Generator

作　　者：苍岩[1] 于蕾[1] 乔玉龙[1] CANG Yan;YU Lei;QIAO Yulong(College of Information and Communication Engineering,Harbin Engineering University,Harbin 150001,China)

机构地区：[1]哈尔滨工程大学信息与通信工程学院

出　　处：《实验科学与技术》2019年第5期1-7,12,共8页Experiment Science and Technology

摘　　要：设计了以模拟元器件--运算放大器为核心元件,辅以同向积分电路、比例运算电路、加减运算电路以及有源滤波电路为一体的综合性验证实验。实验以方波、三角波、矩形波、正弦波4种波形为验证对象,通过数字拨码开关控制七段共阳数码管,显示1、2、3、4共4个数字,利用模拟信号四选一电路实现四路波形相互切换以及独立输出。该实验的特色在于,设计部分综合了数字电路和模拟电子技术的单元电路的设计与调试,在测试部分引入了波形失真度这一客观评价标准,具有良好的可执行性。The integrated component--operational amplifier is designed as the core component,and the integrated comprehensive verification experiment is completed,including the same direction integration circuit,proportional operation circuit,addition and subtraction operation circuit and active filter circuit. The experiment uses four waveforms of square wave,triangle wave,rectangular wave and sine wave as the verification object,and the seven-segment digital tube is controlled by the digital dial switch to display four numbers of 1,2,3 and 4,and four-way waveform switching and independent output are realized by four circuits of analog signals.The characteristic of this experiment is that the design part integrates the design and debugging of the unit circuit of digital circuit and analog electronic technology,and introduces the objective evaluation standard of waveform distortion in the test part,which has good enforceability.

关 键 词：波形发生器 555定时器 运算放大器 波形失真度 

分 类 号：TM133[电气工程—电工理论与新技术]