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Discussion papers
https://doi.org/10.5194/gi-2019-12
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/gi-2019-12
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

Research article 26 Apr 2019

Research article | 26 Apr 2019

Review status
This discussion paper is a preprint. It is a manuscript under review for the journal Geoscientific Instrumentation, Methods and Data Systems (GI).

Development of a new distributed hybrid seismic-electrical data acquisition station based on system–on-a-programmable-chip technology

Qisheng Zhang1, Wenhao Li1, Feng Guo1, Zhenzhong Yuan1, Shuaiqing Qiao1, and Qimao Zhang2 Qisheng Zhang et al.
  • 1School of Geophysics and Information Technology, China University of Geosciences (Beijing), Beijing, China
  • 2Institute of Electronics, Chinese Academy of Sciences, Beijing, China

Abstract. In the past few decades, with the continuous advancement of technology, seismic-electrical instruments have developed rapidly. However, complex and harsh exploration environments have put forward higher requirements and severe challenges for traditional geophysical exploration methods and instruments. Therefore, it is extremely urgent to develop new high-precision exploration instruments and data acquisition systems. In this study, a new distributed seismic-electrical hybrid acquisition station is developed using system-on-a-programmable-chip (SoPC) technology. The acquisition station hardware includes an analog board and a main control board. The analog board uses a signal conditioning circuit and a 24-bit analog-to-digital converter (ADS1271) to achieve high-precision data acquisition, while the main control board uses a low-power SoPC chip to enable high-speed stable data transmission. Moreover, the data transmission protocol for the acquisition station was designed, an improved low-voltage differential signaling data transmission technology was independently developed, and a method to enhance the precision of synchronous acquisition was studied in depth. These key technologies, which were developed for the acquisition station, were integrated into the SoPC of the main control board. Testing results indicate that the synchronization precision of the acquisition station is better than 200 ns, and the maximum low-power data transmission speed is 16 Mbps along a 55 m cable. Simultaneously, the developed acquisition station has the advantages of low noise, large dynamic range, low power consumption, etc., and it can achieve high-precision hybrid acquisition of seismic-electrical data.

Qisheng Zhang et al.
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Status: open (until 21 Jun 2019)
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Qisheng Zhang et al.
Qisheng Zhang et al.
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Short summary
Complex and harsh exploration environments have put forward higher requirements for traditional geophysical exploration methods and instruments. In this study, a new distributed seismic-electrical hybrid acquisition station is developed, and it can achieve high-precision hybrid acquisition of seismic-electrical data. The synchronization precision of the acquisition station is better than 200 ns, and the maximum low-power data transmission speed is 16 Mbps along a 55 m cable.
Complex and harsh exploration environments have put forward higher requirements for traditional...
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