行波与驻波超声光栅衍射的对比研究  

Comparative Study of Ultrasonic Traveling and Standing Wave Grating Diffractions

作　　者：翁存程[1] 林冬松[1] 

机构地区：[1]福建师范大学,福建福州350007

出　　处：《大学物理实验》2015年第6期65-68,共4页Physical Experiment of College

基　　金：福建省教育厅项目(JA15128)

摘　　要：理论上分析了超声行波和驻波光栅衍射的特点。设计出了一种可观察超声行波和驻波光栅衍射特点的实验装置。理论分析和实验结果显示:行波情况下,会出现缺级现象;驻波情况下,不会发生缺级现象。The characteristics of ultrasonic traveling and standing wave grating diffractions are analyzed theoretically. An experimental setup is designed to observe the characteristics of the ultrasonic traveling and standing wave grating diffractions. Theoretical and experiment results demonstrate： For ultrasonic traveling wave grating diffraction,there is the phenomenon of missing order; For ultrasonic Standing wave diffraction,there is not the phenomenon of missing order.

关 键 词：超声光栅 声光效应 衍射 拉曼-纳斯衍射 

分 类 号：O4-33[理学—物理]