| 声速测量实验中声压幅度极值的研究 |
| |
| 引用本文： | 汤纯,苏建新.声速测量实验中声压幅度极值的研究[J].汕头大学学报(自然科学版),2013(2):4-7. |
| |
| 作者姓名： | 汤纯 苏建新 |
| |
| 作者单位： | 1. 同济大学物理科学与工程学院,上海 200092
2. 汕头大学物理系,广东 汕头 515063 |
| |
| 摘 要： | 声速测量实验中,存在接收换能器上的声压幅度极大值和极小值随两换能器之间距离的增大而衰减的现象,此种现象通常以粘滞媒质理论定性解释,然而粘滞媒质理论计算的结果与实验结果相差甚远,本文引入衍射效应,对施加到接收换能器上声压幅度极值进行理论分析及计算,得到了理论和实验较好的吻合结果.
|
| 关 键 词： | 声压 衰减 衍射 吸声系数 |
Study of Maxima and Minima of Sound Pressure Amplitude in the Experiment of Measuring Sound Speed |
| |
| Abstract: | In physics experiment of measuring sound speed,the maxima and minima of sound pressure applied to the receiver transducer will reduce with the distance between two transducer increasing.This phenomenon is explained usually by using viscous medium theory.However,there is still a huge difference between the theory calculation and the experiment.The diffraction effect is introduced to explain above phenomenon.The results show good agreement between theory analysis and experiments. |
| |
| Keywords: | sound pressure attenuation diffraction absorption coefficient |
| 本文献已被 万方数据 等数据库收录！ |
|
