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水下机电设备声功率的混响测试法研究
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摘要
本文介绍了在非消声水池中,在测量的空间平均声压级的基础上,通过声场的校准来实现水下机电设备的辐射声功率研究。修正量表示的是非消声水池中混响控制区所测空间平均声压级与声源级间的差值。在测量空间平均声压级的基础上,通过测量非消声水池的混响时间便可实现混响声场的校准。
This paper introduces research on the reverberation measuring method of underwater sound power on the electromechanical devices that base on the spatial-averaging sound pressure level by means of the calibrating of acoustic field in the non-anechoic tank. The correction signify D-value between the spatial-averaging sound pressure level and sound sources level in the non-anechoic tank. Based on the spatial-averaging sound pressure level, the reverberation of sound field could be corrected by measuring reverberation time of the non-anechoic tank.
引文
[1]尚大晶.水下复杂声源辐射声功率的混响法测量技术研究[D].哈尔滨,哈尔滨工程大学,2012SHANG Da-jing,Research on the Reverberation Measuring Technique of Underwater Complex Sound Sources[D]Harbin:Harbin engineering university 2012
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    [3]马大猷.论室内声场.声学学报,2003;28(2):97-101MA Da You.Theory of sound field in a room.Acta Acustica,2003.28(2):97-101
    [4]何祚镛,赵玉芳.声学理论基础[M].北京:国防工业出版社.1981.He Zuo Yong,Zhao Yufang.The elementary theory of acoustics[M].Beijing:National defend industry press.1981
    [5]张武威,汤伟红.混响室法测定吸声系数计算误差分析[J].声频工程,2008,32:9-11ZHANG Wu-wei,TANG Wei-hong.Analysis on the Error of Calculating the Sound Absorption Coefficient Using the Reverberation Chamber Method.Audio Engineering,2008,32:9-11

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