Shallow seismograph based on virtual instrument technology

摘要：

The shallow seismograph is the main instruments of engineering geophysics explorer.But its key technique lies in how to resolve the problem of the large dynamic scope of signal measurement.Currently the domestic and international instrument company have two kinds of essential techniques to resolves this problem,one is to have a kind of float -amplify electric circuit technique,another is 24A/Ds technique,but these technique had some shortcomings.This design is applied Virtual Instrument technique based on LabVIEW to solve these problems,and try to use 16 A/Ds DAQmx technique of LabVIEW and Automatic Gain Control Electric Circuit(AGC),succeeding to design a kind of seismograph which is cheaper and have large dynamic scope of signal measurement.The key meaning of this design lies in combining the Virtual Instrument technique and geophysics technique,so founding the new way to design geophysics instrument.

关键词： shallow seismograph virtual instrument technique automatic gain control electric circuit

作者: Zhihua Li Heping Pan Jiang Xu

作者单位: China University of Geosciences,Wuhan 430074,China The Third Research Institute of National Ocean Bureau,China

会议类型: 国际会议

会议名称: The 3rd International Conference on Environmental and Engineering Geophysics(第三届环境与工程地球物理国际会议)

会议地点: 武汉

会议语种:英文

页码: 630-633

在线出版日期: 2008-06-15（万方平台首次上网日期，不代表论文的发表时间）