| 声波多普勒效应演示实验 |
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| 引用本文： | 姜洪喜,任敦亮.声波多普勒效应演示实验[J].物理实验,2006,26(9):36-37. |
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| 作者姓名： | 姜洪喜 任敦亮 |
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| 作者单位： | 黑龙江科技学院,数力系,黑龙江,哈尔滨,150027 |
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| 摘 要： | 利用声波多普勒效应导致声强变化的特性,设计了声波多普勒效应实验装置,该装置将声音信号转变成电信号,并用信号大器进行放大,驱动发光二极管发光演示了声波的多普勒效应.
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| 关 键 词： | 多普勒效应 频率 声强 发光二极管 |
| 文章编号： | 1005-4642（2006）09-0036-02 |
| 收稿时间： | 2006-01-01 |
| 修稿时间： | 2006-04-13 |
Demonstration experiment of sound wave Doppler effect |
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| JANG Hong-xi,REN Dun-liang.Demonstration experiment of sound wave Doppler effect[J].Physics Experimentation,2006,26(9):36-37. |
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| Authors: | JANG Hong-xi REN Dun-liang |
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| Institution: | Heilongjiang Institute of Science and Technology, Harbin 150027, China |
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| Abstract: | Using the characteristic of intensity of sound changed by sound wave Doppler effect,the sound wave Doppler effect experiment apparatus is designed.By which sound signal could be transformed to electric signal,then the signal is expanded by signal amplifier and drives the light emitting diode luminescence,so the sound wave Doppler effect is demonstrated. |
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| Keywords: | Doppler effect frequency sound intensity light emitting diode |
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