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Extension and functional properties for TDR measurement application

Research Project

Project/Area Number 20580265
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Irrigation, drainage and rural engineering/Rural planning
Research InstitutionKyushu University

Principal Investigator

筑紫 二郎  Kyushu University, 生物環境調節センター, 教授 (00127458)

Co-Investigator(Kenkyū-buntansha) ITO Yuji  佐賀大学, 低平地沿岸海域研究センター, 研究機関研究員 (60526911)
Project Period (FY) 2008 – 2010
Project Status Completed (Fiscal Year 2010)
Budget Amount *help
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2010: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2009: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2008: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
KeywordsTDR / 誘電率 / 電気伝導度 / 電磁波パルス / マイクロ波 / 淡塩境界面 / 校正曲線 / 校正 / 堆砂表面位 / 体積含水率 / 蒸発 / Topp式
Research Abstract

The purpose of the present study was to establish new applications of TDR measurement and to clarify their functional properties. In this report, three major research topics are included. (1) A multi TDR probe (MWP), having 8 probes in the electric board of 3-cm wide, was developed and properties of the MWP were investigated to measure water content profile near soil surface. The measurements of the profile conducted during evaporation process for sand and decomposed granite soil by using the MWP revealed clear difference of the profile between the soils. (2) Applicability of TDR technique to the monitoring of soil deposit level in water reservoir. A linear relationship between dielectric constant and the deposit level was found with minor impact of electrical conductivity of water. (3) The detection of boundary between fresh- and salt-water using TDR was examined. The analysis of TDR wave form made it possible to estimate the boundary level with high accuracy. With the measurement, we also found that the electrical conductivity of the fresh water can be also evaluated.

Report

(4 results)
  • 2010 Annual Research Report   Final Research Report ( PDF )
  • 2009 Annual Research Report
  • 2008 Annual Research Report
  • Research Products

    (21 results)

All 2010 2009 2008 Other

All Journal Article (14 results) (of which Peer Reviewed: 11 results) Presentation (6 results) Book (1 results)

  • [Journal Article] マイクロ波のエネルギー吸収特性を利用した淡塩水境界面の計測2010

    • Author(s)
      伊藤祐二, 宮本英揮, 郡山益実, 筑紫二郎, 瀬口昌洋
    • Journal Title

      土木学会論文集B 66/2

      Pages: 189-195

    • NAID

      130004468107

    • Related Report
      2010 Final Research Report
  • [Journal Article] マイクロ波のエネルギー吸収特性を利用した淡塩水境界面の計測2010

    • Author(s)
      伊藤祐二, 宮本英揮, 郡山益実, 筑紫二郎, 瀬口昌洋
    • Journal Title

      土木学会論文集B

      Volume: 66 Pages: 189-195

    • NAID

      130004468107

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] TDRによる表層水分計の開発とその有効性の評価2009

    • Author(s)
      伊藤祐二・筑紫二郎・宮本英揮
    • Journal Title

      土壌の物理性 111

      Pages: 35-41

    • Related Report
      2010 Final Research Report
  • [Journal Article] 時間領域反射法による水中の堆積土砂表面位および電気伝導度の同時計測2009

    • Author(s)
      伊藤祐二・宮本英揮・筑紫二郎
    • Journal Title

      農業農村工学会論文集 263

      Pages: 81-90

    • NAID

      10025641869

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 時間領域反射法による水中堆積土砂表面位の評価法2009

    • Author(s)
      伊藤祐二・宮本英揮・筑紫二郎
    • Journal Title

      農業農村工学会論文集 262

      Pages: 75-81

    • NAID

      10025641638

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 種々の電気伝導度条件に対する静電容量式土壌成分センサーの校正モデル2009

    • Author(s)
      宮本英揮・長裕幸・伊藤祐二・筑紫二郎・江口寿彦
    • Journal Title

      植物環境工学 21(2)

      Pages: 86-91

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Coupled measurements of water content and electrical conductivity in dielectrically lossy clay slurry using a coated TDR probe2009

    • Author(s)
      Miyamoto, H., J.Chikushi, M Kanayama
    • Journal Title

      Soil and Foundations 49(2)

      Pages: 175-180

    • NAID

      110007327457

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 時間領域反射法による水位・電気伝導度および土砂表面位の計測2008

    • Author(s)
      宮本英揮・筑紫二郎・呉宅根
    • Journal Title

      土壌の物理性 108

      Pages: 37-45

    • NAID

      130008087757

    • Related Report
      2010 Final Research Report
  • [Journal Article] マイクロ波信号領域における粘土の誘電特性2008

    • Author(s)
      宮本英揮, 下町多佳志, 筑紫二郎, 安永円理子
    • Journal Title

      土壌の物理性 110

      Pages: 13-23

    • NAID

      130008085919

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 広域帯インパルス信号を用いた時間領域透過法(TDT)による誘電特性の計測2008

    • Author(s)
      宮本英揮, 伊藤直樹, 安永円理子, 高市信也, 間瀬淳, 筑紫二郎
    • Journal Title

      土壌の物理性 110

      Pages: 3-12

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Simplified permittivity calibration of custom-designed TDR probes for measuring soil water content2008

    • Author(s)
      Miyamoto, H., J. Chikushi, E. Yasunaga
    • Journal Title

      Environ. Control Biol. 46(3)

      Pages: 175-182

    • NAID

      10022022389

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 時間領域反射法による水位・電気伝導度および土砂表面位の計測2008

    • Author(s)
      宮本英揮, 筑紫二郎, 呉宅根
    • Journal Title

      土壌の物理性 108

      Pages: 37-45

    • NAID

      130008087757

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 時間領域反射法で計測した乾燥過程における籾の比誘電率特性2008

    • Author(s)
      安永円理子, 宮本英揮, 吉田敏, 筑紫二郎
    • Journal Title

      植物環境工学 20(1)

      Pages: 14-20

    • NAID

      10021228761

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] マイクロ波を利用した沿岸帯水層における淡水の層厚と電気伝導度の計測システム

    • Author(s)
      伊藤祐二・郡山益実・宮本英揮・筑紫二郎
    • Journal Title

      水文・水資源学会誌

      Volume: (印刷中)

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Presentation] Measurement of interface level between fresh and salt water layers in terms of energy absorption characteristics in microwave.2010

    • Author(s)
      Ito, Y., H. Miyamoto, M.Koriyama, J.Chikushi, M.Seguchi
    • Organizer
      Joint Symposium on Integrated Water and Soil Management between Water Resources University, Vietnam, and Kyushu University, Japan
    • Place of Presentation
      Hanoi,Vietnam.
    • Year and Date
      2010-11-22
    • Related Report
      2010 Final Research Report
  • [Presentation] Measurement of interface level between fresh and salt water layers in terms of energy absorption characteristics in microwave2010

    • Author(s)
      Ito, Y., H.Miyamoto, M.Koriyama, J.Chikushi, M.Seguchi
    • Organizer
      Joint Symposium on Integrated Water and Soil Management between Water Resources University, Vietnam, and Kyushu University, Japan.
    • Place of Presentation
      Hanoi, Vietnam
    • Year and Date
      2010-11-22
    • Related Report
      2010 Annual Research Report
  • [Presentation] Multi-TDR probe designed for measuring soil moisture distribution near the soil surface2010

    • Author(s)
      Ito, Y., J.Chikushi, H.Miyamoto
    • Organizer
      19th World Congress of Soil Science, Soil Solutions for a Changing World
    • Place of Presentation
      Brisbane, Australia
    • Year and Date
      2010-08-04
    • Related Report
      2010 Annual Research Report
  • [Presentation] Multi-TDR probe designed for measuring soil moisture distribution near the soil surface.2010

    • Author(s)
      伊藤祐二, 筑紫二郎, 宮本英揮
    • Organizer
      19th World Congress of Soil Science, Soil Solutions for a Changing World 117-120
    • Place of Presentation
      Brisbane, Australia.
    • Related Report
      2010 Final Research Report
  • [Presentation] TDRによる水中堆積土砂表面位の評価法2009

    • Author(s)
      伊藤祐二・筑紫二郎・宮本英揮
    • Organizer
      平成21年度農業農村工学会大会講演会
    • Place of Presentation
      筑波
    • Related Report
      2010 Final Research Report 2009 Annual Research Report
  • [Presentation] TDRによる水中の堆積土砂表面位および電気伝導度の同時計測2009

    • Author(s)
      伊藤祐二・筑紫二郎・宮本英揮
    • Organizer
      平成21年度農業農村工学会大会講演会
    • Place of Presentation
      筑波
    • Related Report
      2009 Annual Research Report
  • [Book] 土壌の誘電特性:計測原理と応用2010

    • Author(s)
      筑紫二郎
    • Total Pages
      135
    • Publisher
      九州大学出版会
    • Related Report
      2010 Final Research Report 2009 Annual Research Report

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Published: 2008-04-01   Modified: 2016-04-21  

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