Test And analyses of TEM B-field parameter

DOI

10.2991/iceeg-16.2016.50How to use a DOI?

Keywords

TEM, B-field, parameter

Abstract

In normal TEM sounding, the parameter of secondary induced voltage V signal is collected by using magnetic induced coil, however, the late signal is usually too weak to distinguish deep buried target. In this paper, direct measuring of B-field parameters is used to test its practical effect. Firstly, from the response of B-field and dB/dt and numerical calculation of different models, we can see that the B-field has superiority in late time detection. Then SM24 TEM system which is used to measure B-field and GDP-32 system which is used to measure induced voltage are compared. With the same observation parameters, B-field data is more superiority than induced voltage data. The characteristic frequency of fluxgate sensor is relatively low and it decays slow. In addition, the amplitude of B-field data is larger than dB/dt data. It is favorable to measure in late time because of its low effect with low resistivity covered layer. The results show that it is an important direction to solve fine TEM exploration by developing and using fluxgate sensor.

Copyright

© 2016, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Yugang Zhao
AU  - Guoqiang Xue
AU  - Zhanguo Lu
AU  - Huasen Zhong
PY  - 2016/06
DA  - 2016/06
TI  - Test And analyses of TEM B-field parameter
BT  - Proceedings of the 7th International Conference on Environment and Engineering Geophysics & Summit Forum of Chinese Academy of Engineering on Engineering Science and Technology
PB  - Atlantis Press
SP  - 183
EP  - 185
SN  - 2352-5401
UR  - https://doi.org/10.2991/iceeg-16.2016.50
DO  - 10.2991/iceeg-16.2016.50
ID  - Zhao2016/06
ER  -