三个简谐振动合成的拍现象和实验仪  

BEAT PHENOMENON OF SYNTHESIS OF THREE HARMONIC VIBRATIONS AND DEMONSTRATION INSTRUMENT

作　　者：吴俊[1] 张毓麟[1] 晏世雷[1] 方建兴[1] 

机构地区：[1]苏州大学物理科学与技术学院

出　　处：《物理与工程》2008年第3期38-40,共3页Physics and Engineering

基　　金：江苏省示范实验教学中心基金项目

摘　　要：在三个简谐振动合成的拍现象进行理论分析基础上,提出了一种能够准确演示三个简谐振动拍现象的实验仪器,对进行的演示和计算机仿真比较,所给结果正确,并比传统演示手段更加直观,演示内容更加丰富.Based on theoretical analysis of beat phenomenon of synthesis of three harmonic vibrations, we present an experimental instrument that can accurately demonstrate beat phenomenon. By comparing with computer simulation, the result is very good. The contrast shows that demonstration of the experimental instrument is more direct and richer than traditional means.

关 键 词：简谐振动合成 拍现象 实验仪 

分 类 号：O321[理学—一般力学与力学基础] G633.7[理学—力学]