Response of ECH2O Probe and TDR Probe in the Determination of Dielectric Characteristics of Rough Rice during Drying Process

E. Yasunaga, H. Miyamoto, S. Yoshida, J. Chikushi

    研究成果: 書籍/レポート タイプへの寄稿会議への寄与

    1 被引用数 (Scopus)

    抄録

    The purpose of this study is to examine the dielectric characteristics of rough rice during the drying process by using ECH2O probe and TDR probe for monitoring the moisture content of rough rice. Re-wetted rough rice was gradually air-dried, and the ECH2O and TDR waveform during the drying process were monitored by using EC-5 and EC-TE ECH2O probes and conventional two-wire and short-ended TDR probe, across a range of measurement frequencies 70 MHz for ECH2O probe and around 1GHz for TDR probe. In the drying process, the moisture content (m) of rough rice decreased gradually with the passage of time and finally attained about 11-15% w.b. accompanied by about 5% volume shrinkage. The relative dielectric constant (ε) evaluated from these waveforms obtained by TDR generally increased with the moisture content. The high correlation between m and ε demonstrates that the m value can be estimated from ε obtained from these probes with sufficient accuracy. A high correlation between m and mcal could be established. The term mcal stands for moisture content obtained from the equation that expressed the relation between m and ε.

    本文言語英語
    ホスト出版物のタイトルActa Horticulturae
    出版社International Society for Horticultural Science
    ページ371-376
    ページ数6
    ISBN(印刷版)9789066055629
    DOI
    出版ステータス出版済み - 2009

    出版物シリーズ

    名前Acta Horticulturae
    837
    ISSN(印刷版)0567-7572

    !!!All Science Journal Classification (ASJC) codes

    • 園芸学

    フィンガープリント

    「Response of ECH2O Probe and TDR Probe in the Determination of Dielectric Characteristics of Rough Rice during Drying Process」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

    引用スタイル