| 講演要旨(和文) | | 探査コストの増大を防ぎつつ、多数の測定点で長期間のモニタリングを実施するために、安価な自律型の小型MT探査装置の開発を行っている。本研究では、すでに試作を行ったモニタリング用の小型MT探査装置を改良し、その詳細について報告する。これまでに開発した小型のMT探査装置の改良を行った。野外実験を行いサンプリング速度の向上に伴い、周波数方向の分解能が向上した。今後さらなる改良を加えて実用的な小型の探査装置を開発する。 |
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| | 講演要旨(英文) | | A lot of equipments to cover a survey area are necessary for long-term monitoring of behavior of resource fluids, such as petroleum or geothermal fluid, with high accuracy. Using low-cost equipments is effective to reduce total survey cost during the long-term monitoring survey. A low-cost small MT equipment has been developed using inexpensive and sensitive tri-axial MI sensors. The small MT equipment has been improved its frequency resolution for practical use with SDHC memory card storage. As a result of field tests of the improved equipment together with a common data logger, the improved MT equipment could observe electromagnetic field variations accurately. |
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