Multi-functional probe for small-scale simultaneous measurements of soil thermal properties, water content, and electrical conductivity
نویسندگان
چکیده
Multi-functional probe for small-scale simultaneous measurements of soil thermal properties, water content, and electrical conductivity A. Valente a,∗, R. Morais a, A. Tuli b, J.W. Hopmans b, G.J. Kluitenberg c a CETAV, Centro de Estudos Tecnológicos do Ambiente e da Vida, UTAD University, Quinta de Prados, Apartado 1013, 5001-801 Vila Real, Portugal b Vadose Zone Hydrology, Department of Land, Air and Water Resources, University of California, Davis, CA 95616, USA c Department of Agronomy, Kansas State University, Manhattan, KS 66506, USA
منابع مشابه
Indirect estimation of soil thermal properties and water flux using heat pulse probe measurements: Geometry and dispersion effects
[1] Traditionally, analytical solutions for heat transport in soils have been used in combination with heat pulse probe (HPP) measurements to estimate soil thermal properties. Although the analytical method has resulted in accurate estimation of soil thermal properties, we suggest that parameter estimation using inverse modeling (IM) provides new and unique opportunities for soil thermal charac...
متن کاملSimultaneous Monitoring of Soil Water Content and Salinity with a Low-Cost Capacitance-Resistance Probe
Capacitance and resistivity sensors can be used to continuously monitor soil volumetric water content (θ) and pore-water electrical conductivity (EC(p)) with non-destructive methods. However, dielectric readings of capacitance sensors operating at low frequencies are normally biased by high soil electrical conductivity. A procedure to calibrate capacitance-resistance probes in saline conditions...
متن کاملHybrid nanofluid based on CuO nanoparticles and single-walled Carbon nanotubes: Optimization, thermal, and electrical properties
The purpose of this study is to use the thermal and electrical conductivities of copper oxide nanoparticles and carbon nanotubes for the preparation of high-performance nanofluids for achieving better heat transfer properties. These nanofluids consist of a water/Ethylene Glycol solution containing single-wall carbon nanotubes (SWCNTs) and copper oxide nanoparticles (CuONPs). The effects of such...
متن کاملSoil Water Content Monitoring Using Electromagnetic Induction
The use of electromagnetic ~EM! induction measurements was evaluated to predict water content in the upper 1.50 m of a prototype engineered barrier soil profile designed for waste containment. Water content was monitored with a neutron probe, and bulk soil electrical conductivity was monitored with a Geonics EM38 ground conductivity meter at ten locations at approximately monthly intervals over...
متن کاملMultiplexer-Induced Interference on TDR Measurements of Electrical Conductivity
The possibility of automated multiple readings of water content and bulk soil electrical conductivity represents a major benefit in soil research, and is one of the most attractive characteristics of the time domain reflectometry (TDR) technique. Coaxial multiplexers are commonly employed to monitor up to hundreds of TDR probes through computer or datalogger interface.We observed that the diffe...
متن کامل