测量水的振动频率与水波传播速度  

Measuring the vibration frequency and the spread velocity of water wave with laser beam

作　　者：童培雄[1] 赵在忠[1] 

机构地区：[1]复旦大学物理系,上海200433

出　　处：《物理实验》2005年第5期6-9,共4页Physics Experimentation

摘　　要：利用激光器、硅光电池等器件,采用光折射方法设计了激光测量水的振动频率与水波传播速度实验.本文介绍了实验原理和装置,测量了水的振动频率和水波向外传播的速度,观察了小块物体落水激起的水波情况.Based on optical refraction, a method for measuring the vibration frequency and the spread velocity of water wave with laser beam is introduced. In the experiment, laser and silicon photocell are used. The experimental principle and device are detailed. And the water wave brought about by the little object falling into water is investigated also.

关 键 词：水波 振动频率 传播速度 色散 表面张力波 激光 

分 类 号：O353.5[理学—流体力学]