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원추 관입형 임피던스 수분센서 개발을 위한 기초 연구

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

  • 발행 : 2009.12.25

초록

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).

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참고문헌

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