| 调制气流声源振动系统参数分析 |
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| 引用本文： | 许伟,龚昌超,曾新吾.调制气流声源振动系统参数分析[J].国防科技大学学报,2009,31(5):97-100. |
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| 作者姓名： | 许伟 龚昌超 曾新吾 |
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| 作者单位： | 1. 国防科技大学理学院,湖南,长沙,410073
2. 国防科技大学光电科学与工程学院,湖南,长沙,410073 |
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| 摘 要： | 通过实验数据与理论计算结果的对比,分析了气流对振动系统的阻尼作用;并以实验声源为基础,以等效电路方法分析了调制气流声源振动系统的弹性系数、磁感应强度、音圈质量、电阻、电感以及绕线方式等参数对音圈振幅的影响;根据调制气流声源的用途差异,提出了用于语音广播和产生大功率低频声波时振动系统各参数的选择方法.
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| 关 键 词： | 调制气流声源 强声 振动系统 音圈 等效电路 |
| 收稿时间： | 2009/3/24 0:00:00 |
Analysis of the Vibration System Parameters in the Air-modulated Speaker |
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| XU Wei,GONG Changchao and ZENG Xinwu.Analysis of the Vibration System Parameters in the Air-modulated Speaker[J].Journal of National University of Defense Technology,2009,31(5):97-100. |
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| Authors: | XU Wei GONG Changchao and ZENG Xinwu |
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| Institution: | 1.College of Science, National Univ. of Defense Technology, Changsha 410073, China;2.College of Opto-electric Science and Engineering, National Univ. of Defense Technology, Changsha 410073, China;2.College of Opto-electric Science and Engineering, National Univ. of Defense Technology, Changsha 410073, China |
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| Abstract: | Through the comparison of the experiment data with the theory results, the damp influence of the airflow on the vibration system is analyzed. Furthermore, based on the experiment sound source, how the parameters of the vibration system may influence the voice coil amplitude, such as coefficient of elasticity, magnetic flux density, the mass, resistance, inductance and winding strands of the voice coil, is studied using equivalent circuit method. Finally, methods to choose these parameters are presented for the purpose of speech broadcasting or generating low frequency sound waves. |
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| Keywords: | air-modulated speaker high intensity sound vibration system voice coil equivalent circuit |
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