| 近场声全息测量阵架的设计与分析 |
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| 引用本文： | 朱海鹏,朱海潮,匡贡献,陈志敏.近场声全息测量阵架的设计与分析[J].声学技术,2011,30(3):211-215. |
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| 作者姓名： | 朱海鹏 朱海潮 匡贡献 陈志敏 |
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| 作者单位： | 1. 海军工程大学振动与噪声研究所,武汉,430033
2. 总参气象水文局,北京,100081 |
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| 摘 要： | 全息测量系统设计的关键是测量全息面测点复声压(幅值和相位)的真实数据,介绍了自行设计的近场声全息(NAH)测量的传声器线阵扫描系统.利用边界元法计算了传声器线阵架结构表面声散射对阵上传声器测量全息复声压的影响,提出了敷设吸声材料以提高测量精度的措施；对在线阵架表面敷设吸声材料后的声散射效应仿真结果表明,吸声材料能够有效...
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| 关 键 词： | 近场声全息 传声器线阵 边界元法 声散射 吸声材料 |
| 收稿时间： | 2010/3/24 0:00:00 |
| 修稿时间： | 2010/6/1 0:00:00 |
Design and analysis of near-filed acoustic holography measurement array |
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| ZHU Hai-peng,ZHU Hai-chao,KUANG Gong-xian and CHEN Zhi-min.Design and analysis of near-filed acoustic holography measurement array[J].Technical Acoustics,2011,30(3):211-215. |
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| Authors: | ZHU Hai-peng ZHU Hai-chao KUANG Gong-xian and CHEN Zhi-min |
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| Affiliation: | ZHU Hai-peng1,ZHU Hai-chao1,KUANG Gong-xian2,CHEN Zhi-min1(1.Institute of Noise and Vibration,Naval University of Engineering,Wuhan 430033,China,2.General staff Meteorological and Hydrographic Bureau,Beijing 100081,China) |
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| Abstract: | The most important consideration in the design of the NAH measurement equipment is to ensure getting the accurate data of complex acoustic pressure(amplitude and phase) values in acoustic field.A scanning device of linear microphone array,which can measure the complex acoustic pressure distribution near by the noise source for NAH measurement,is recommend in this paper.The influence of acoustic scattering from the frame of microphone array on the acoustic pressure measurement is calculated,and a measure tha... |
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| Keywords: | NAH(Near-field Acoustic Holography) microphone array BEM(Boundary Element Method) acoustical scattering damping material |
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