低频水声换能器的力声互易测试方法研究
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- 英文论文题名：Research on the measurement of the low-frequency underwater acoustical source based on the mechanical-acoustical reciprocity principle
- 论文作者：卢铃 ; 孙红灵 ; 杨军
- 英文论文作者：LU Ling ; SUN Hong-ling ; YANG Jun ; Key laboratory of Noise and Vibration Research ; Institute of Acoustics ; Chinese Academy of Sciences
- 年：2016
- 作者机构：中国科学院噪声与振动重点实验室;
- 论文关键词：水声换能器 ; 低频 ; 力声互易
- 英文论文关键词：underwater acoustical source ; low frequency ; mechanical-acoustical reciprocity principle
- 会议召开时间：2016-10-28
- 会议录名称：2016年全国声学学术会议论文集
- 语种：中文
- 分类号：TB565.1
- 学会代码：OGSM
- 会议名称：2016年全国声学学术会议
- 会议地点：中国湖北武汉
- 主办单位：中国声学学会
- 学会名称：中国声学学会
- 页数：4
- 文件大小：435k
- 原文格式：D
- 会议级别：全国
摘要
水声换能器的低频性能测试是一个难题,互易原理提供了一种解决该难题的途径。本文提出了一种低频水声换能器的力声互易测试方法。基于力声互易原理,设计了一种半潜入式的力声互易装置,通过力电互易实验,验证了该装置在水中具有良好的互易性质。利用该装置在有限水域中测试了一款低频水声换能器的辐射特性。测试结果与自由场法测试结果在600~1000Hz具有良好的一致性,说明了该方法的有效性。该力声互易装置可测频率的下限大约是100Hz,极大地降低了复杂声场环境中水中低频声源的测试下限,因此具有重要的工程应用价值。
Measuring the low frequency property of an underwater acoustical source is a hard problem, and reciprocity principle provides a way to solve it. This paper presents a method based on the mechanical-acoustical reciprocity principle. A semi-immersion single-end-face mechanical-acoustical reciprocal device is designed, and it is proved to be reciprocal in the water based on the mechanical-electrical reciprocity experiment. Then, the radiation property of a low frequency underwater acoustic source is measured with the reciprocal device. The results agree with the results of the free field method very well in 600 ~ 1000 Hz, which indicates the effectiveness of the method. Besides, the lower frequency limit of the device is about 100 Hz, which greatly reduces the lower frequency limit of the existing technologies. Therefore, it is of significant value in engineering applications.
Measuring the low frequency property of an underwater acoustical source is a hard problem, and reciprocity principle provides a way to solve it. This paper presents a method based on the mechanical-acoustical reciprocity principle. A semi-immersion single-end-face mechanical-acoustical reciprocal device is designed, and it is proved to be reciprocal in the water based on the mechanical-electrical reciprocity experiment. Then, the radiation property of a low frequency underwater acoustic source is measured with the reciprocal device. The results agree with the results of the free field method very well in 600 ~ 1000 Hz, which indicates the effectiveness of the method. Besides, the lower frequency limit of the device is about 100 Hz, which greatly reduces the lower frequency limit of the existing technologies. Therefore, it is of significant value in engineering applications.
引文
[1]吴本玉,莫喜平,崔政.非消声水池中低频换能器测量的空间域处理方法[J].声学学报,2010,35(4):434-440.WU Benyu,MO Xiping,CUI Zheng.A spatial domain processing method for low frequency transducer measurement in a reverberant tank.Acta Acustica,,2010,35(4):434-440.
[2]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].哈尔滨工程大学,2010.SHANG Dajing.Research on the reverberation measuring technique of underwater complex sound sources[D].Harbin Engineering University,2010.
[3]吴本玉.低频换能器水池测试新技术研究[D].中国科学院大学,2009.WU Benyu.Study on the new technique for low frequency transducer measurement in a reverberant tank[D].Beijing:Institute of Acoustics,Chinese Academy of Sciences,2009.
[4]WOLDE T T.Reciprocity measurements in acoustical and mechanic-acoustical systems[J].Acta Acust.United Acust.,2010,96(1):1-13.
[5]WOLDE T T.Reciprocity experiments on the transmission of sound in ships[D].Delft:Delft University,1973.
[6]FAHY F J.Some applications of the reciprocity principle in experimental vibroacoustic[J].Acoustical Physics,2003,49(2):262-277.
[7]WOLDE T T.Reciprocity measurement of acoustical source strength in an arbitrary surrounding[J].Noise Control Engineering,1976,7(1):16-23.
[8]LYAMSHEV L M.A question in connection with the principle of reciprocity in acoustics[J].Soviet Physics Doklady.1959,4:406-409.
[9]LU L,SUN H L,et al.Improvement of reciprocity measurement in acoustical source strength[C].Proceedings of the 21th international congress on sound and vibration(ICSV21),2014.
[10]卢铃,孙红灵,et al.一种用于声源低频性能测试的互易装置[J].应用声学,2016,35(4):1-7.LU Ling,SUN Hongling,et al.A reciprocal device for low frequency property test of a sound source[J],Journal of Applied Acousitcs,2016,35(4):1-7.
[11]卢铃,孙红灵,et al.基于力声互易的声源低频性能测试方法研究[C].声学技术,2015,34(6):521-524.LU Ling,SUN Hongling,et al.Measurement of the low-frequency performance of an acoustical source using mechanical-acoustical reciprocity principle[C].Technical Acoustics,2015,34(6):521-524.
[2]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].哈尔滨工程大学,2010.SHANG Dajing.Research on the reverberation measuring technique of underwater complex sound sources[D].Harbin Engineering University,2010.
[3]吴本玉.低频换能器水池测试新技术研究[D].中国科学院大学,2009.WU Benyu.Study on the new technique for low frequency transducer measurement in a reverberant tank[D].Beijing:Institute of Acoustics,Chinese Academy of Sciences,2009.
[4]WOLDE T T.Reciprocity measurements in acoustical and mechanic-acoustical systems[J].Acta Acust.United Acust.,2010,96(1):1-13.
[5]WOLDE T T.Reciprocity experiments on the transmission of sound in ships[D].Delft:Delft University,1973.
[6]FAHY F J.Some applications of the reciprocity principle in experimental vibroacoustic[J].Acoustical Physics,2003,49(2):262-277.
[7]WOLDE T T.Reciprocity measurement of acoustical source strength in an arbitrary surrounding[J].Noise Control Engineering,1976,7(1):16-23.
[8]LYAMSHEV L M.A question in connection with the principle of reciprocity in acoustics[J].Soviet Physics Doklady.1959,4:406-409.
[9]LU L,SUN H L,et al.Improvement of reciprocity measurement in acoustical source strength[C].Proceedings of the 21th international congress on sound and vibration(ICSV21),2014.
[10]卢铃,孙红灵,et al.一种用于声源低频性能测试的互易装置[J].应用声学,2016,35(4):1-7.LU Ling,SUN Hongling,et al.A reciprocal device for low frequency property test of a sound source[J],Journal of Applied Acousitcs,2016,35(4):1-7.
[11]卢铃,孙红灵,et al.基于力声互易的声源低频性能测试方法研究[C].声学技术,2015,34(6):521-524.LU Ling,SUN Hongling,et al.Measurement of the low-frequency performance of an acoustical source using mechanical-acoustical reciprocity principle[C].Technical Acoustics,2015,34(6):521-524.