基于光学多普勒效应的光速测量与监听实验  

Light velocity measurement and audio monitoring experimentbased on optical Doppler effect

作　　者：陈宝骥 韦先涛 王中平 CHEN Baoji;WEI Xiantao;WANG Zhongping(School of the Gifted Young,Department of Physics,University of Science and Technology of China,Hefei 230026,China;Physics Experiment Teaching Center,Department of Physics,University of Science and Technology of China,Hefei 230026,China Department of Physics,University of Science and Technology of China,Hefei 230026,China)

机构地区：[1]中国科学技术大学少年班学院,安徽合肥230026 [2]中国科学技术大学物理学院物理实验教学中心,安徽合肥230026

出　　处：《物理实验》2023年第5期37-42,共6页Physics Experimentation

摘　　要：设计了基于迈克耳孙干涉仪的光学多普勒效应定量实验装置,分别以气体、液体中光速的测量与音频监听为例,阐述了装置的具体运行过程,展示了装置的性能与技术参量.实验测得空气中光速为3.021×10^(8)m/s,水中光速为2.284×10^(8)m/s;该装置还可用于研究物体的运动,测速范围达到300 nm/s~7.9 m/s.基于光学多普勒效应进行音频监听,所得音频包含了音频原声的基本特征.A quantitative experimental device for optical Doppler effect based on Michelson interferometer was designed.Taking the light velocity measurement in gas and liquid and audio monitoring experiment as examples,the specific operation process of the device was described,and the performance and technical parameters of the device were shown as well.The light velocity in air was 3.021×10^(8) m/s and that in water was 2.284×10^(8) m/s.The device could also be used to study the motion of objects,with velocities ranging from 300 nm/s to 7.9 m/s.Based on the optical Doppler effect,the audio was monitored,and the basic characteristics of audio was obtained.

关 键 词：光学多普勒效应 迈克耳孙干涉仪 光速 音频监听 

分 类 号：O438[机械工程—光学工程]