摘要
教具是辅助教育教学的重要工具.在验证力的“平行四边形法则”实验中,由于当前实验器材的局限性导致实验结果的可视性和操作的便捷性都存在一定的问题.针对这些问题,设计了一种基于STC89C51的LED显示测力计作为此实验的教具.该教具由LED亮的个数来表示力的大小,采用锁存器74LS373级联的方式连接所需LED,通过改变力来达到控制LED的目的,完成力与灯光的结合.直线型LED渐亮的过程使整个实验更加直观可视化,便于学生观察并体会力的变化过程,实现教具使用的多样化.
Teaching aids are important tools for assisting education and teaching.In the experiment of verifying the"parallelogram rule"of force,there are certain problems with the visibility of experimental results and the convenience of operation due to the limitations of the current experimental equipment.In response to these issues,in this article,an LED display dynamometer based on STC89C51 as the teaching aid for this experiment is designed.This teaching aid is represented by the number of LEDs that light up to indicate the magnitude of the force.It uses a latch 74LS373 cascade to connect the required LED,which can be changed to control the LED and achieve the combination of force and light.By gradually brightening the linear LED,the entire experiment is made more intuitive and visualized,making it easier for students to observe and experience the process of force changes,and achieving diversification in the use of teaching aids.
作者
姚远
张伟光
张光冉
张婷
李东明
王小周
Yao Yuan;Zhang Weiguang;Zhang Guangran;Zhang Ting;Li Dongming;Wang Xiaozhou(Harbin Normal University)
出处
《哈尔滨师范大学自然科学学报》
CAS
2023年第3期74-80,共7页
Natural Science Journal of Harbin Normal University
作者简介
通讯作者:张伟光
