Optics and Precision Engineering, Volume. 22, Issue 5, 1331(2014)
Acoustic-to-seismic coupling based discrimination for nonmetallic mine detection
An acoustictoseismic coupling based discrimination method was investigated for experimental research of buried nonmetallic mine detection.The fundamental theory of acoustic resonance technique for mine detection based on acoustictoseismic coupling was introduced.The acoustic parameters that characterize the mechanical features of buried mines were studied and the application of combination effect of acoustic resonance and antiresonance was discussed. A vehicular experimental system for acoustic mine detection was designed to measure the surface vibration velocities with/without mines in soil.Finally,the acoustic vibration characters of buried mines were analyzed according to the results of scanning detection. The results show that the location with mines buried will exhibit an obvious boost in vibration. Under the given circumstance, the intensity of vibration in the center of mine is 15 times that of offmine location. The intensity will rise to 20 times if the signaltonoise ratio is increased. The proposed method can be used to study the acoustic vibration characters of mines buried location. The designed experimental system is cost efficient and easy to operate.
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DING Wei, SHEN Gao-wei, WANG Chi, ZHOU Yu-qiu, WU Wen-wen. Acoustic-to-seismic coupling based discrimination for nonmetallic mine detection[J]. Optics and Precision Engineering, 2014, 22(5): 1331
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Received: Aug. 30, 2013
Accepted: --
Published Online: Jun. 3, 2014
The Author Email: Wei DING (dingwei@shu.edu.cn)