Title :
Design of seismic data acquisition system
Author :
Ming, Li ; Zi, Yuan ; Chunlan, Jiang
Author_Institution :
State Key Lab. of Explosion Sci. & Technol., Beijing Inst. of Technol., Beijing, China
Abstract :
A multi-channel signal acquisition system for acquiring the seismic signal in the field is developed in this paper, which has features of small in size, easy to carry, easy to use, less additional requirements. Firstly, the system scheme is designed and the structure and composition of the system are determined. Secondly, a kind of seismic sensor is selected according to the frequency characteristic of the target. Then, an amplifying circuit is designed on the basis of the target frequency and the response of the sensor. A data acquisition card is selected according to the actual requirements of multi-channel signal acquisition system, and the hardware of the system is ready after the integration of the above components with a notebook computer. On the basis of the above, the acquisition software of the system is developed by the use of a virtual instrument development environment. The software enables eight-channel signal acquisition, 2 waveform display & control, and simple spectrum analysis. Finally, a multichannel signal acquisition experiment is carried out and result shows that the system performance meets the needs of the acquisition.
Keywords :
data acquisition; geophysical signal processing; seismology; sensors; signal detection; spectral analysis; virtual instrumentation; amplifying circuit design; frequency characteristic; multichannel signal acquisition system; notebook computer; seismic data acquisition system; seismic sensor; seismic signal; spectrum analysis; system hardware; target frequency; virtual instrument development environment; waveform control; waveform display; Computers; Data acquisition; Libraries; Oscilloscopes; Programming; Software; data acquistion system; design; virtual instrument;
Conference_Titel :
Signal Processing (ICSP), 2010 IEEE 10th International Conference on
Conference_Location :
Beijing
Print_ISBN :
978-1-4244-5897-4
DOI :
10.1109/ICOSP.2010.5655739