The Borehole-Ground Controlled Source Electromagnetic Signal Recorder

CHEN Kai; DENG Ming; HUANG Jiang-jie; CHENG Tian

doi:10.1081/22020586.2010.12041904

ISSN: 2202-0586
E-ISSN:

oa The Borehole-Ground Controlled Source Electromagnetic Signal Recorder
Authors CHEN Kai^a, DENG Ming^b, HUANG Jiang-jie^c and CHENG Tian^d
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^a Affiliation: Key Laboratory of Geo-detection, (China University of Geosciences, , Beijing, ), Ministry of Education, Address: School of Geophysics and Information Technology, China University of Geosciences, .No.29,Xueyuan Road, Handian District,Beijing, E-mail:[email protected] ^b Affiliation: Key Laboratory of Geo-detection, (China University of Geosciences, , Beijing, ), Ministry of Education, Address: School of Geophysics and Information Technology, China University of Geosciences, .No.29,Xueyuan Road, Handian District,Beijing, E-mail:[email protected] ^c Affiliation: Key Laboratory of Geo-detection, (China University of Geosciences, , Beijing, ), Ministry of Education, Address: School of Geophysics and Information Technology, China University of Geosciences, .No.29,Xueyuan Road, Handian District,Beijing, E-mail:[email protected] ^d Affiliation: Key Laboratory of Geo-detection, (China University of Geosciences, , Beijing, ), Ministry of Education, Address: School of Geophysics and Information Technology, China University of Geosciences, .No.29,Xueyuan Road, Handian District,Beijing, E-mail:[email protected]
Publisher: Australian Society of Exploration Geophysicists
Source: ASEG Extended Abstracts, Volume 2010, Issue ASEG2010 - 21st Geophysical Conference, Dec 2010, p. 1 - 5
DOI: https://doi.org/10.1081/22020586.2010.12041904
- Published online: 01 Dec 2010

Abstract

Summary

As a high-tech method of electrical prospecting, borehole-ground controlled source electromagnetic imaging is aimed to enhance the detection depth and increase resolution appropriately. It requires the signal recording instrument to be a ground and underground (pit, wells) quasi-three-dimensional receiver. To record signals of the natural field and controlled source from 0.1Hz to 20KHz in N * 10nV - N * 100mV amplitude range, we used a series of new technology, such as ARM + LINUX embedded, low-noise high-precision, GPS synchronization and low drift, low-power, NET, high-capacity storage, to develop a borehole-ground controlled source electromagnetic recorder with large dynamic range of broadband. Field survey data indicate that this signal recorder can work in a normal and stable manner, and all expected technical indexes have been largely reached.

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References

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Article Type: Research Article

Keyword(s): Controlled source electromagnetic method; Signal acquisition

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