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A Sensor for the Measurement of the Moisture of Undisturbed Soil Samples
Faculty of Technical Sciences, University of Novi Sad, Trg Dositeja Obradovića 6, 21000 Novi Sad, Serbia
* Author to whom correspondence should be addressed.
Received: 25 November 2012; in revised form: 10 January 2013 / Accepted: 15 January 2013 / Published: 29 January 2013
Abstract: This paper presents a very accurate sensor for the measurement of the moisture of undisturbed soil samples. The sensor relies on accurate estimation of the permittivity which is performed independently of the soil type, and a subsequent calibration. The sensor is designed as an upgrade of the conventional soil sampling equipment used in agriculture—the Kopecky cylinder. The detailed description of the device is given, and the method for determining soil moisture is explained in detail. Soil moisture of unknown test samples was measured with an absolute error below 0.0057 g/g, which is only 2.24% of the full scale output, illustrating the high accuracy of the sensor.
Keywords: soil moisture sensor; sensor modeling; permittivity measurement
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Kitić, G.; Crnojević-Bengin, V. A Sensor for the Measurement of the Moisture of Undisturbed Soil Samples. Sensors 2013, 13, 1692-1705.
Kitić G, Crnojević-Bengin V. A Sensor for the Measurement of the Moisture of Undisturbed Soil Samples. Sensors. 2013; 13(2):1692-1705.
Kitić, Goran; Crnojević-Bengin, Vesna. 2013. "A Sensor for the Measurement of the Moisture of Undisturbed Soil Samples." Sensors 13, no. 2: 1692-1705.