摘要
利用PASCO传感器测量了共振管中的声压分布,结果与基于多重反射的理论分析符合很好.在此基础上,测量了共振管开口端对管内声波的反射系数及其对频率的依赖关系.
The sound field in a tube is theoretically analyzed from the viewpoint of multiple reflection and experimentally measured with PASCO sensors. The measured resonant curve agrees well with the theoretical prediction, which depends only on the reflection coefficient at the open end of the tube. Based on this fact, the dependence of the reflection coefficient upon the wave frequency is experimentally determined.
出处
《物理实验》
2008年第10期40-42,共3页
Physics Experimentation
关键词
声波
共振
声强分布
反射系数
PASCO传感器
sound wave
resonance
distribution of sound pressure
reflection coefficient
PASCO sensors
