| 隔声现场测量的扬声器声源法改进 |
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| 引用本文： | 陈卫松,邱小军,刘嘉俊. 隔声现场测量的扬声器声源法改进[J]. 噪声与振动控制, 2007, 27(3): 138-140,144 |
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| 作者姓名： | 陈卫松 邱小军 刘嘉俊 |
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| 作者单位： | [1]安徽师范大学物理电信学院,安徽芜湖241000 [2]近代声学重点实验室、南京大学声学研究所,南京210093 [3]台湾永续工程顾问有限公司,南京210093 |
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| 基金项目： | 国家自然科学基金;教育部高等学校博士学科点专项科研基金 |
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| 摘 要： | 通过对现行国家标准关于隔声现场测量中扬声器声源法的分析，提出扬声器声源多点放置隔声现场测量的改进方案。在扬声器声源多点测量方法中，合理选取不同角度放置声源，测得声波以不同角度入射时构件的隔声量，再对测试结果按照角度求平均值。实验结果表明，扬声器声源多点放置测得的结果能更好地反映隔声构件的现场隔声效果，且实验可重复性好，实验条件便于控制。
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| 关 键 词： | 声学 隔声 现场测量 扬声器声源 |
| 文章编号： | 1006-1355（2007）03-0138-03 |
| 修稿时间： | 2006-09-052006-10-12 |
An Improved Method on Field Sound Insulation Measurement Using Loudspeaker Source |
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| CHEN Wei-song,QIU Xiao-jun,LIU Jia-jun. An Improved Method on Field Sound Insulation Measurement Using Loudspeaker Source[J]. Noise and Vibration Control, 2007, 27(3): 138-140,144 |
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| Authors: | CHEN Wei-song QIU Xiao-jun LIU Jia-jun |
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| Affiliation: | 1. College of Physics and Electronic Information, Anhui Normal University, Wuhu Anhui 241000,China; 2. Key Laboratory of Modern Acoustics and Institute of Acoustics, Nanjing University, Nanjing 210093,China; 3. Yong-Xu Engineering Consultants Co. , Ltd. Taiwan |
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| Abstract: | Base on the analysis of the national standards on field sound insulation measurement using loudspeaker source, an improved method which put a sound source at several points instead of a single point is proposed. In the proposed method, a loudspeaker source is placed at several appropriate points with different angles and the corresponding transmission losses are tested respectively to obtain the average transmission loss. Experimental results show that the results obtained by putting a loudspeaker source at several appropriate points can reflect fiehl sound transmission loss better than that of using a single point. Furthermore, the improved method has better consistence, and the experiment condition can be easily controlled. |
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| Keywords: | acoustics sound insulation field measurement loudspeaker source |
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