摘要
本文给出一种用激光束演示振动合成的新的实验方法，用两金属片作振源来演示振动合成，比《大学物理》１９８４年第４期上曾报道的用两个小型扬声器作振源，演示效果更好，制作更简便。
A new method to demonstrate the composition of vibrations by laser beam isproposed． Two pieces of metal sheet are used as the vibrating sources instead of small loud-speakers．It is found that not only a better effect of demonstration is obtained but the preparation of the equipment is more convenient.
出处
《大学物理》
北大核心
1994年第4期28-30,共3页
College Physics
关键词
激光束
振动合成
简谐振动
laser beam；harmonic vibration；composition of vibrations
