Arduino中PWM调制在电子技术实验中的应用研究  

APPLICATION RESEARCH OF PWM MODULATION IN ARDUINO IN ELECTRONIC TECHNOLOGY EXPERIMENTS

作　　者：林炳权 石皓宇 车宇 李鹏[1,2] 梁飞翔 唐强[1,2] 蔡志岗 LIN Bingquan;SHI Haoyu;CHE Yu;LI Peng;LIANG Feixiang;TANG Qiang;CAI Zhigang(School of Physics,Sun Yat-sen University,Guangzhou,Guangdong 510275;National Level Experiment Teaching Center for Physics,Sun Yat-sen University,Guangzhou,Guangdong 510275;School of Electrical and Information Engineering,Tianjin University,Tianjin 300072)

机构地区：[1]中山大学物理学院,广东广州510275 [2]中山大学物理学国家级实验教学示范中心,广东广州510275 [3]天津大学电气自动化与信息工程学院,天津300072

出　　处：《物理与工程》2023年第3期80-87,共8页Physics and Engineering

基　　金：国家级大学生创新创业训练计划项目(202210357);中山大学本科教学质量工程项目(中山大学教务[2022]20号,74130-12220011)。

摘　　要：基于开源控制平台Arduino控制器的开放性与易用性,在原有的电子技术综合实验中新增了以Arduino单片机为核心的实验教学模块。利用Arduino单片机中的脉冲宽度调制技术(PWM技术),单片机根据接收到的红外信号对应调节两个直流电机的输入电压,从而控制其转速比,进而控制由电机上的两个偏心镜反射后的点状激光的运动轨迹,利用视觉残留效果形成图案,并通过MATLAB设计了仿真实验验证了激光图案的正确性。新增教学模块扩展了传统的电子技术综合设计实验教学中焊接控制电路的内容,丰富了实验教学内容,加强对学生的编程能力和电子技术综合设计能力的培养,激发学生的学习兴趣。Based on the openness and ease of use of the Arduino controller of the open source control platform,an experimental teaching module with The Arduino microcontroller as the core has been added to the original electronic technology comprehensive experiment.Using the pulse width modulation technology(referred to as PWM technology)in the Arduino microcontroller,the microcontroller adjusts the input voltage of the two DC motors according to the received infrared signal,thereby controlling its speed ratio,and then controlling the motion trajectory of the dot laser reflected by the two eccentric mirrors on the motor,forming a pattern by using the visual residual effect,and verifying the correctness of the laser pattern through simulation experiments designed by MATLAB.The new teaching module expands the content of welding control circuits in the traditional experimental teaching of comprehen-sive electronic technology design,enriches the experimental teaching content,strengthens the cultivation of students􀆳programming ability and electronic technology comprehensive design ability,and stimulates students􀆳interest in learning.

关 键 词：ARDUINO 教学改革 脉冲宽度调制技术(PWM技术) 计算机编程 

分 类 号：G642.423[文化科学—高等教育学] TN0-4[文化科学—教育学]