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Evaluation of default, soil-specific, and clay content correction calibration functions for dielectric sensors in soils with differing propertiesPečan, Urša ; Kastelec, Damijana ; Pintar, Marina, 1961-Correct soil water content measurement is important for various environmental and agricultural applications. The aim of thisstudy was to evaluate the performance of two commercially available ... dielectric sensors, the SM150T (Delta-T Devices) and TRIME-Pico 32(IMKO). We evaluated the manufacturer’s calibration functions and the two-point calibration function recommended by Delta-T Devices.The coefficients of the two-point calibration showed a statistically significant dependence on clay content. Because the soils testedcontained a wide range of clay contents, a clay content correction function was developed. Soil-specific calibration functions were alsodeveloped. In general, measurement errors were the largest when the manufacturer’s calibration was used, but were smaller for the SM150T[root mean square error (RMSE) of 0.011 to0.051m3m−3] compared to the TRIME-Pico 32 (RMSE of 0.030 to0.060m3m−3). The errorsdecreased after applying the clay content correction function for TRIME-Pico 32. For both sensor types, the two-point calibration reducedthe errors, and the soil-specific calibration yielded the lowest error rates.Source: Journal of irrigation and drainage engineering. - ISSN 0733-9437 (Vol. 148, iss. 6 (04022016), 2022, 11 str.)Type of material - article, component part ; adult, seriousPublish date - 2022Language - englishCOBISS.SI-ID - 102113795
Author
Pečan, Urša |
Kastelec, Damijana |
Pintar, Marina, 1961-
Topics
soil water |
measurements |
soil properties |
dielectric sensors |
calibration |
voda v tleh |
vsebnost vode v tleh |
lastnosti tal |
meritve |
dielektrični senzorji |
kalibracija
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source: Journal of irrigation and drainage engineering. - ISSN 0733-9437 (Vol. 148, iss. 6 (04022016), 2022, 11 str.)
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Database name | Field | Year |
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Pečan, Urša | 51866 |
Kastelec, Damijana | 10689 |
Pintar, Marina, 1961- | 10024 |
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