| 空间有源消声器研究 |
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| 引用本文： | 田静,沙家正. 空间有源消声器研究[J]. 声学学报,1987,12(1): 16-21. DOI: 10.15949/j.cnki.0371-0025.1987.01.003 |
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| 作者姓名： | 田静 沙家正 |
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| 作者单位： | 南京大学声学研究所(田静)，南京大学声学研究所(沙家正) |
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| 摘 要： | 本文从理论和实验两个方面分析了次级声源的辐射特性,设计了一种三极子分立声源,引入了次级系统的加速度信号馈给方式,给出并讨论了在消声室与混响室两种极端声学条件下取得的三维低频噪声场的全空间消声效果。
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| 收稿时间： | 1984-10-10 |
A STUDY OF SPATIAL ACTIVE NOISE ATTENUATORS |
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| TIAN Jing,SHA Jia-zheng. A STUDY OF SPATIAL ACTIVE NOISE ATTENUATORS[J]. ACTA ACUSTICA,1987,12(1): 16-21. DOI: 10.15949/j.cnki.0371-0025.1987.01.003 |
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| Authors: | TIAN Jing SHA Jia-zheng |
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| Abstract: | In this paper,the sound radiation characteristics of secondary sources are analysed theoretically and experimentally. A kind of tripole discrete secondary sources is designed. Acceleration signal input method of secondary systems is introduced. Experimental results of the global attenuation of three-dimensional noise fields in a low frequency range are given and discussed for the extreme acoustical laboratory conditions of anechoic chamber and reverberation room. |
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