Development of a multi-coil electromagnetic exploration system using an unmanned ground vehicle

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  • Satake Kai
    Department of Earth Sciences, Resources and Environmental Engineering, Graduate School of Creative Science and Engineering, Waseda University
  • Ide Kento
    Department of Earth Sciences, Resources and Environmental Engineering, Graduate School of Creative Science and Engineering, Waseda University
  • Manzawa Karin
    Department of Earth Sciences, Resources and Environmental Engineering, Graduate School of Creative Science and Engineering, Waseda University
  • Ueda Takumi
    Department of Resources and Environmental Engineering, School of Creative Science and Engineering, Waseda University.
  • Jinguuji Motoharu
    Geological Survey of Japan, National Institute of Advanced Industrial Science and Technology.
  • Yokota Toshiyuki
    Geological Survey of Japan, National Institute of Advanced Industrial Science and Technology.
  • Komori Shogo
    Geological Survey of Japan, National Institute of Advanced Industrial Science and Technology.

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Other Title
  • 無人地上車両（UGV）を用いたマルチコイル型電磁探査システムの開発
  • ムジン チジョウ シャリョウ(UGV)オ モチイタ マルチコイルガタ デンジ タンサ システム ノ カイハツ

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Abstract

<p>　In recent years, several types of drones such as unmanned aerial vehicles (UAV) and unmanned ground vehicles (UGV) have been developed, researched, and applied in various fields. This technology may be especially useful for the investigation of shallow subsurface problems at depths of meters to dozens of meters below the surface, which are of concern in fields such as infrastructure maintenance, environmental geology, and civil engineering. In particular, the demand for shallow subsurface exploration over a wide area and along a lengthy survey line without the need to dig up the ground is rapidly increasing. In response to these needs, we have begun to develop a new UGV electromagnetic (EM) exploration system (UGVEM system), which consists of a single-frequency multi-coil electromagnetic probe and UGV. In this study, we first conducted basic experiments at a test site to verify whether it would be feasible to use the new system designed from both a UGV and EM instruments. Then, to further evaluate the feasibility and effectiveness of our system, field experiments were conducted along part of the Miyato River-bank in Kuno, Koga City, Ibaraki Prefecture, Japan. According to the data acquired from field experiments with our new system and apparent resistivity cross-sections generated by the observed data, we were able to conclude that the developed system can be applied for efficient field explorations of shallow subsurface geo-electrical structures.</p>

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