Measurement of Frequency-Dependent Conductivity and Relative Permittivity of a Soil Using Two Parallel Electrodes

• Yoshimura Takahiro

  Department of Electrical Engineering, Doshisha University

• Nagaoka Naoto

  Department of Electrical Engineering, Doshisha University

• Baba Yoshihiro

  Department of Electrical Engineering, Doshisha University

• Ametani Akihiro

  Department of Electrical Engineering, Doshisha University

Bibliographic Information

Other Title

• 土壌の周波数依存導電率および比誘電率の二平板電極による測定

Abstract

Impedance of cylindrical specimens of a soil having three different lengths is measured at frequencies ranging from 40Hz to 40MHz using two parallel electrodes in order to estimate and remove the effect of the contact impedance. Both conductivity and relative permittivity of the tested soil increase with increasing the moisture ratio. The conductivity of the soil having a moisture ratio of 5% is almost constant (about 3mS/m) at frequencies lower than 10MHz, and increases with increasing frequency beyond 10MHz. The relative permittivity of the same soil decreases with increasing frequency up to 10MHz, at which it is 7.

Journal

• IEEJ Transactions on Power and Energy

  IEEJ Transactions on Power and Energy 126 (9), 954-955, 2006

  The Institute of Electrical Engineers of Japan

Keywords

• conductivity
• frequency dependence
• grounding
• relative permittivity
• soil

Details

• CRID: 1390001204601401344
• NII Article ID: 10019289896
• NII Book ID: AN10136334
• DOI: 10.1541/ieejpes.126.954
• ISSN: 13488147
• ISSN: 03854213
• Web Site: http://www.jstage.jst.go.jp/article/ieejpes/126/9/126_9_954/_pdf
• Text Lang: ja
• Data Source:
  • JaLC
  • Crossref
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed