一种基于声-地震耦合的室内声波探雷实验系统
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摘要
为了研究声波探雷机理,设计了一个基于声-地震耦合原理的室内声波探雷实验系统.首先,简述声波探雷技术的基本原理;然后,详细介绍室内声波探雷实验系统的硬件组成及实验方案;最后,用一种反坦克塑料教练地雷进行实验,重点讨论实验系统的可重复性.实验结果显示,在相同实验条件下,测得的3条地表振动曲线基本重合,表明所设计的实验系统的可重复性良好,满足测试要求,可用于实验室条件下声波探雷机理的研究.
In order to investigate the mechanism of acoustic landmines detection,an acoustic-to-seismic coupling based lab-scale experimental system for mines detection was developed.Firstly,the principle of acoustic mines de-tection technology was reviewed.Then the equipment and experimental design of the proposed system were described in detail.Finally,experiments were conducted with an antitank plastic coach mine and the system’s repeatability was especially discussed.Experimental results show that the three measured curves of surface vibration appear identical under the same experimental conditions,which proves that the system has good repeatability and meets the test requirements,and can be used to further lab-scale study of the acoustic landmines detection mechanism.
In order to investigate the mechanism of acoustic landmines detection,an acoustic-to-seismic coupling based lab-scale experimental system for mines detection was developed.Firstly,the principle of acoustic mines de-tection technology was reviewed.Then the equipment and experimental design of the proposed system were described in detail.Finally,experiments were conducted with an antitank plastic coach mine and the system’s repeatability was especially discussed.Experimental results show that the three measured curves of surface vibration appear identical under the same experimental conditions,which proves that the system has good repeatability and meets the test requirements,and can be used to further lab-scale study of the acoustic landmines detection mechanism.
引文
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[2]Biot M A.Theory of propagation of elastic waves in afluid-saturated porous solid(I):Low-frequency range[J].J Acoust Soc Am,1956,28(2):168-178.
[3]Biot M A.Theory of propagation of elastic waves in afluid-saturated porous solid(Ⅱ):Higher-frequencyrange[J].J Acoust Soc Am,1956,28(2):179-191.
[4]Sabatier J M,Bass H E,Bolen L N,et al.Acousticallyinduced seismic waves[J].J Acoust Soc Am,1986,80(2):646-649.
[5]Sabatier J M,Bass H E,Bolen L N,et al.The interactionof airborne sound with the porous ground:The theoreticalformulation[J].J Acoust Soc Am,1986,79(5):1345-1352.
[6]王驰,李醒飞,刘志刚,等.测量地表声阻抗率的实验研究[J].传感技术学报,2008,21(5):887-890.Wang Chi,Li Xingfei,Liu Zhigang,et al.Experimentalstudy on the earth surface acoustic impedance measure-ment[J].Chinese Journal of Sensors and Actuators,2008,21(5):887-890(in Chinese).
[7]王驰,李醒飞,付娟,等.地雷对地表声阻抗率的影响研究[J].传感器与微系统,2008,27(8):36-38,41.Wang Chi,Li Xingfei,Fu Juan,et al.Study on impact ofburied landmines on earth surface acoustic imped-ance[J].Transducer and Microsystem Technologies,2008,27(8):36-38,41(in Chinese).
[8]Zagrai A N,Donskoy D M,Ekimov A.Structural vibra-tions of buried land mines[J].J Acoust Soc Am,2005,118(6):3619-3628.
[9]Donskoy D.Nonlinear seismo-acoustic landmine detec-tion[J].J Acoust Soc Am,2008,123(5):3042-3043.
[10]Sabatier J M,Xiang N.An investigation of acoustic-to-seismic coupling to detect buried antitank landmines[J].IEEE Transactions on Geoscience and Remote Sensing,2001,39(6):1146-1154.
[11]Xiang N,Sabatier J M.An experimental study on antiper-sonnel landmine detection using acoustic-to-seismic cou-pling[J].J Acoust Soc Am,2003,113(3):1333-1341.
[12]Donskoy D,Ekimov A,Sedunov N,et al.Nonlinearseismo-acoustic land mine detection and discrimina-tion[J].J Acoust Soc Am,2002,111(6):2705-2714.
[13]Donskoy D,Reznik A,Zagrai A,et al.Nonlinear vibra-tions of buried land mines[J].J Acoust Soc Am,2005,117(2):690-700.
[14]王驰,刘志刚,李醒飞,等.声-地震耦合探雷技术分析[J].声学学报,2008,33(4):354-359.Wang Chi,Liu Zhigang,Li Xingfei,et al.Analysis ofacoustic to seismic coupling technique for buried land-mines detection[J].Acta Acoustica,2008,33(4):354-359(in Chinese).
[15]王驰,李醒飞,付娟,等.声波探雷及其信号处理方法[J].光学.精密工程,2008,16(9):1716-1721.Wang Chi,Li Xingfei,Fu Juan,et al.Acoustic landminedetection and its signal processing method[J].Opticsand Precision Engineering,2008,16(9):1716-1721(inChinese).
[16]王驰,刘志刚,李醒飞,等.基于相对声-地震耦合率的声波探雷技术[J].天津大学学报,2008,41(6):745-750.Wang Chi,Liu Zhigang,Li Xingfei,et al.Technology foracoustic landmine detection based on relative acoustic-to-seismic coupling ratio[J].Journal of Tianjin University,2008,41(6):745-750(in Chinese).
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