Measurement on Complex Permittivities of Hydrated Soil, Live and Dead Leaves, Woods, and Stones at Frequency Bands from LF to MF for Landslides Prognostication

カテゴリ: 論文誌(論文単位)

グループ名: 【C】電子・情報・システム部門

発行日: 2018/02/01

タイトル(英語): Measurement on Complex Permittivities of Hydrated Soil, Live and Dead Leaves, Woods, and Stones at Frequency Bands from LF to MF for Landslides Prognostication

著者名: Kousei Kumahara (National Institute of Technology, Kure College), Kengo Nakajima (National Institute of Technology, Kure College), Futoshi Kuroki (National Institute of Technology, Kure College), Masanori Eguchi (Fuzzy Logic Systems Institute), Takeshi Ya

著者名(英語): Kousei Kumahara (National Institute of Technology, Kure College), Kengo Nakajima (National Institute of Technology, Kure College), Futoshi Kuroki (National Institute of Technology, Kure College), Masanori Eguchi (Fuzzy Logic Systems Institute), Takeshi Ya

キーワード: medium frequency，low frequency，measurement，complex permittivity，landslides prognostication

要約(英語): Complex permittivity of hydrated soil included in lands was measured by setting the water volume content to be from 2.5% to 15% for landslides prognostication at frequency bands from low frequency (LF) to medium frequency (MF). The main emphasis is placed on a simple test equipment, which consists of top and bottom electrodes in a plastic cylinder for filling some solutions. From the results, it was obvious that the loss tangent was larger than those of the soil and water themselves due to the ionization. In addition, the complex permittivities of live and dead leaves, woods, and stones existing in the lands were also measured by using the test equipment to estimate the effective permittivity of the forest. The evaluation of the complex permittivities was successfully performed.

本誌: 電気学会論文誌C（電子・情報・システム部門誌） Vol.138 No.2 （2018） 特集：電磁波応用を加速するための高周波回路・計測・システム技術

本誌掲載ページ: 94-99 p

原稿種別: 論文／英語

電子版へのリンク: https://www.jstage.jst.go.jp/article/ieejeiss/138/2/138_94/_article/-char/ja/