Transient Electromagnetic Response With a Ramp Current Excitation Using Conical Source
In this paper, transient electromagnetic response excited by ramp-shaped current using a conical source is studied for the sensing of underground environments. The transient time responses from the conical source with either multi-turn coils or a single loop coil are investigated and compared. Altho...
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doaj-6638a49781c442baa47c1f0a6f4455b92021-03-29T22:57:44ZengIEEEIEEE Access2169-35362019-01-017638296383610.1109/ACCESS.2019.29147408706970Transient Electromagnetic Response With a Ramp Current Excitation Using Conical SourceHaiyan Yang0https://orcid.org/0000-0001-9391-2102Shenen Chen1Jianhua Yue2Fengping Li3Hua Zhang4School of Geophysics and Measurement-Control Technology, East China University of Technology, Nanchang, ChinaDepartment of Civil and Environmental Engineering, University of North Carolina at Charlotte, Charlotte, NC, USASchool of Resources and Geosciences, China University of Mining and Technology, Xuzhou, ChinaSchool of Resources and Geosciences, China University of Mining and Technology, Xuzhou, ChinaSchool of Geophysics and Measurement-Control Technology, East China University of Technology, Nanchang, ChinaIn this paper, transient electromagnetic response excited by ramp-shaped current using a conical source is studied for the sensing of underground environments. The transient time responses from the conical source with either multi-turn coils or a single loop coil are investigated and compared. Although with the same magnetic moment, the turn-off time for conical source is longer than that of the single loop-this is due to the fact that the time of entering different testing stages using a multi-turn coil system is often earlier than that for a single loop system. To correct turn-off error, the conical source type transmitter is used and the one-dimensional modeling of a layered media, in which the calculation of the turn-off response is carried over the entire time range by solving directly an upper limit-variable integral. The turn-off correction method matched the resistivity and the layer thickness, which is critical for the detection of shallow depth problems. Finally, a field example is presented to illustrate the effect of turn-off time on the interpretation of transient sounding data for a conical source system.https://ieeexplore.ieee.org/document/8706970/Transient electromagnetic methodconical sourceturn-off timesimulationramp current |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Haiyan Yang Shenen Chen Jianhua Yue Fengping Li Hua Zhang |
spellingShingle |
Haiyan Yang Shenen Chen Jianhua Yue Fengping Li Hua Zhang Transient Electromagnetic Response With a Ramp Current Excitation Using Conical Source IEEE Access Transient electromagnetic method conical source turn-off time simulation ramp current |
author_facet |
Haiyan Yang Shenen Chen Jianhua Yue Fengping Li Hua Zhang |
author_sort |
Haiyan Yang |
title |
Transient Electromagnetic Response With a Ramp Current Excitation Using Conical Source |
title_short |
Transient Electromagnetic Response With a Ramp Current Excitation Using Conical Source |
title_full |
Transient Electromagnetic Response With a Ramp Current Excitation Using Conical Source |
title_fullStr |
Transient Electromagnetic Response With a Ramp Current Excitation Using Conical Source |
title_full_unstemmed |
Transient Electromagnetic Response With a Ramp Current Excitation Using Conical Source |
title_sort |
transient electromagnetic response with a ramp current excitation using conical source |
publisher |
IEEE |
series |
IEEE Access |
issn |
2169-3536 |
publishDate |
2019-01-01 |
description |
In this paper, transient electromagnetic response excited by ramp-shaped current using a conical source is studied for the sensing of underground environments. The transient time responses from the conical source with either multi-turn coils or a single loop coil are investigated and compared. Although with the same magnetic moment, the turn-off time for conical source is longer than that of the single loop-this is due to the fact that the time of entering different testing stages using a multi-turn coil system is often earlier than that for a single loop system. To correct turn-off error, the conical source type transmitter is used and the one-dimensional modeling of a layered media, in which the calculation of the turn-off response is carried over the entire time range by solving directly an upper limit-variable integral. The turn-off correction method matched the resistivity and the layer thickness, which is critical for the detection of shallow depth problems. Finally, a field example is presented to illustrate the effect of turn-off time on the interpretation of transient sounding data for a conical source system. |
topic |
Transient electromagnetic method conical source turn-off time simulation ramp current |
url |
https://ieeexplore.ieee.org/document/8706970/ |
work_keys_str_mv |
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