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http://dx.doi.org/10.5307/JBE.2009.34.6.434

Basic Study for Cone Penetrometer Type Soil Water Content Sensor using Impedance Spectroscopy  

Lee, Dong-Hoon (Sungkyunkwan University)
Lee, Kyou-Seung (Sungkyunkwan University)
Chung, Sun-Ok (Dept. of Bioindustrial Machinery Engineering, Chungnam National University)
Publication Information
Journal of Biosystems Engineering / v.34, no.6, 2009 , pp. 434-438 More about this Journal
Abstract
This study was conducted to design an cone penetrometer type impedance sensor that can measure soil water content in realtime. The best width between electrical probe was determined by 5 mm. For optimization about realtime application device, linear regression analysis was applied between soil water content and impedance signal. It was concluded that proper combination of excitation frequency, impedance parameter, and model would provide acceptible performance of a soil waler content sensoe. Best model was obatained at a 36.5 MHz with |Z| as a predictor variable, with a coefficient of determination of 0.96 (RMSE=1.35, RPD=4.98).
Keywords
Soil sensor; Sensor design; Impedance spectroscopy; Siil water content; Cone penetrometer;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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