数字化演示实验助力光学慕课西行——以圆孔衍射实验为例
Application of digital demonstration experiment in optics MOOC Going West——Taking circular aperture diffraction as example
庞晓宁 1崔新图 1黄臻成 1冯饶慧 1廖德驹 1方奕忠 1沈韩 1李梦钰 1罗鑫 2赵福利1
作者信息
- 1. 中山大学 物理学院,广东 广州 510275;中山大学物理学国家级实验教学示范中心(中山大学),广东 广州 510275
- 2. 中山大学 物理学院,广东 广州 510275
- 折叠
摘要
为了提升光学慕课西行线上同步课堂的教学效果,中山大学光学教学团队运用数字化技术手段,在课堂上通过多镜头线上实时呈现光学演示实验结果,实现了理论与实验相结合,为专业课教学提供数字化教学以及定量分析的功能.以圆孔衍射演示实验为例,从标量衍射理论出发推导圆孔夫琅禾费衍射以及菲涅耳衍射公式,同时测量圆孔衍射的光斑图样随衍射距离的变化.通过对比理论分析与实验结果,将专业课理论数字化呈现,并通过云端实现同步效果,有助于学生理解相关知识点,提升课程的教学效果.
Abstract
The online synchronous classroom of optics in the"MOOC course Going West"at Sun Yat-sen University utilized digital technology to enhance teaching effectiveness.The classroom em-ployed multiple cameraed to present optical demonstration experiments in real time,realizing the com-bination between theory and practical experiments,thus providing digital teaching and quantitative a-nalysis capabilitied for professional course instruction.The demonstration experiment on circular ap-erture diffraction served as a typical case in the optics course.Starting from scalar diffraction theory,the Fraunhofer diffraction and Fresnel diffraction formulaed for circular apertures were derived.Sim-ultaneously,the variation of the spot pattern of circular aperture diffraction was measured with dif-fraction distance.By comparing theoretical analysis with experimental results,the course effectively presented the digitalized representation of theoretical concepts,effectively contributing to students'comprehension of relevant knowledge points and enhancing the teaching effectiveness of the course.This case could provide the beneficial reference for the counterparts to develop the exporation on the the synchronized digital classroom.
关键词
慕课西行/数字化技术/演示实验/圆孔衍射Key words
MOOC course Going West/digital technology/demonstrational experiment/circular aperture diffraction引用本文复制引用
基金项目
粤疆藏区域联合光学虚拟教研共同体建设项目(GDSGGT2022003)
2022年度广东省高校教学质量与教学改革工程项目(粤教高函[2023]4号)
出版年
2024
NETL
NSTL
万方数据