王驰,周瑜秋,丁卫,沈高炜.虚拟仪器在声波激发的地表振动检测系统中的应用[J].声学技术,2012,(4):345~350 |
虚拟仪器在声波激发的地表振动检测系统中的应用 |
Application of virtual instrument in acoustically induced ground vibration testing system |
投稿时间:2011-09-07 修订日期:2011-12-19 |
DOI:10.3969/j.issn1000-3630.2012.04.001 |
中文关键词: 声-地震耦合 数据采集 虚拟仪器 |
英文关键词: acoustic-to-seismic coupling data acquisition virtual instrument |
基金项目:国家自然科学基金资助项目(41104065) |
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中文摘要: |
设计一个声波激发的地表振动检测系统, 用基于Labview的软件平台实现数据的采集与处理。用扬声器发出扫频的正弦声波激励地表产生地表振动, 并用地震检波器接收地表振动速度信号, 通过NI 5112数字化仪传送到计算机, 在Labview环境下进行滤波、频谱分析、波形显示与数据存储等处理。实验结果显示, 该系统能有效完成测量任务, 可用于声-地震耦合现象的进一步研究。 |
英文摘要: |
An experimental system for acoustic-to-seismic coupling is developed. Labview software development platform is used to conduct data acquisition and processing. Seismic waves are induced by using a loudspeaker to generate a swept sine tone to the ground surface. The vibration velocity of the ground surface is received by a geophone, and sent to a computer via NI-5112 digitizer. Functions of filtering, spectrum analysis, waveform display and data storage are performed with Labview. The results indicate that the presented system can realize the test efficiently and can be used for further experimental study of acoustic-to-seismic coupling. |
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