| 运用声悬浮现象测量声速的演示实验 |
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| 引用本文： | 黄学东,俞嘉隆,乔卫平.运用声悬浮现象测量声速的演示实验[J].大学物理,2005,24(11):42-44. |
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| 作者姓名： | 黄学东 俞嘉隆 乔卫平 |
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| 作者单位： | 上海交通大学,物理系,上海,200240;上海交通大学,物理系,上海,200240;上海交通大学,物理系,上海,200240 |
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| 摘 要： | 介绍一个新颖的运用声悬浮现象测量声速的演示实验，详细分析讨论了声波在垂直谐振腔内使物体悬浮于空中的条件与位置。
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| 关 键 词： | 声悬浮 声速 声压差 半波长 |
| 文章编号： | 1000-0712（2005）11-0042-03 |
| 收稿时间： | 2005-01-18 |
| 修稿时间： | 2005-07-14 |
Measuring velocity of sound by using acoustic levitation |
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| HUANG Xue-dong,YU Jia-long,QIAO Wei-ping.Measuring velocity of sound by using acoustic levitation[J].College Physics,2005,24(11):42-44. |
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| Authors: | HUANG Xue-dong YU Jia-long QIAO Wei-ping |
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| Institution: | Department of Physics, Shanghai Jiaotong University, Shanghai 200240, China |
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| Abstract: | A new method of measuring velocity of sound by using acoustic levitation is introduced. The conditions and the positions of objects suspending in air by vibrated sound wave within an acoustic resonator are analyzed and discussed in detail. |
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| Keywords: | acoustic levitation velocity of sound difference of sound pressure a half of wavelength |
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