| 缩尺模型试验中早期侧向反射声测量方法研究 |
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| 引用本文： | 倪其育,方元,吴启学,孙广荣.缩尺模型试验中早期侧向反射声测量方法研究[J].声学技术,2001,20(3):103-106. |
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| 作者姓名： | 倪其育 方元 吴启学 孙广荣 |
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| 作者单位： | 南京大学声学研究所、 |
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| 摘 要： | 文章利用半波长干涉的简单原理制作成高频∞字形指向性传声器，同时应用信号处理技术，形成简易的早期侧向反射声测试系统，在缩尺模型试验中实现早期侧向反射声系数的测量，扩大了缩尺模型试验的功能。
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| 关 键 词： | 缩尺模型试验 早期侧向反射声 测量方法 半波长干涉 信号处理 音质 室内声学 |
| 文章编号： | 1000-3630(2001)03-0103-04 |
| 收稿时间： | 2000/2/2 0:00:00 |
| 修稿时间： | 2000年2月2日 |
The measuring method of lateral energy fraction in the scale model experiments |
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| NI Qi-yu,FANG Yuan,WU Qi-xue and SUN Guang-rong.The measuring method of lateral energy fraction in the scale model experiments[J].Technical Acoustics,2001,20(3):103-106. |
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| Authors: | NI Qi-yu FANG Yuan WU Qi-xue and SUN Guang-rong |
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| Affiliation: | The Institute of Acoustics, Nanjing University, The Modern Acoustics State Key Laboratory, Nanjing 210093, China;The Institute of Acoustics, Nanjing University, The Modern Acoustics State Key Laboratory, Nanjing 210093, China;The Institute of Acoustics, Nanjing University, The Modern Acoustics State Key Laboratory, Nanjing 210093, China;The Institute of Acoustics, Nanjing University, The Modern Acoustics State Key Laboratory, Nanjing 210093, China |
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| Abstract: | This paper introduces a measuring method of lateral energy fraction in the scale model experiments.According to the interference principle of half wave length making the high frequency figure 8 directional microphone,which,together with the signal processing technique,form a receiving and analysing system,and then the measurements of lateral energy fraction in the scale model are realized. |
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| Keywords: | room acoustics scale model experiments early lateral reflective sound |
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