| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Bore, Thierry
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (12/12 displayed)
- 2024A flow through coaxial cell to investigate high frequency broadband complex permittivity: Design, calibration and validationcitations
- 2023Monitoring of Mortar Hydration Combining Microwave and Calorimetry Measurementscitations
- 2023On the use of molecular dynamics to compute the dielectric permittivity of C-S-H
- 2023Broadband Dielectric Characterization With Flow Through Coaxial Cell
- 2021Multiple open ended probe for spatio-temporal dielectric spectroscopy: application to evaporative dewateringcitations
- 2020Dielectric properties of the pore solution in cement-based materialscitations
- 2020Electromagnetic properties of concrete: bottom-up modeling from the molecular scalecitations
- 2019Determination of the Porosity Distribution during an Erosion Test Using a Coaxial Line Cellcitations
- 2017Monitoring of Microalgae Lipid Accumulation Using RF Open Ended Biosensorcitations
- 2016RF characterization of intracellular microalgae lipidscitations
- 2013Theoretical and experimental study of a Time-Domain-Reflectometry (TDR) probe used for water content measurement of clayrock through their electromagnetic propertiescitations
- 2013Electromagnetic characterization of grouting materials of bridge post tensioned ducts for NDT using capacitive probecitations
Places of action
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article
Multiple open ended probe for spatio-temporal dielectric spectroscopy: application to evaporative dewatering
Abstract
This paper reports the design, the calibration and the application of a multiple open-ended coaxial probe. The objective behind development of this new sensor is to characterize the spatial and temporal distribution of electromagnetic properties of materials in frequency domain (radio to microwave region). Complex permittivity has been computed from the measured scattering function based on a capacitance model. Each of the probes have been calibrated against measurements performed on reference materials air, deionized water and methanol, for which dielectric properties are well established. The quality of the calibration has been validated with measurement made on another reference liquid (ethylene glycol) by comparing with results from the literature. The new sensor has then been used to measure the temporal and spatial electromagnetic properties over the 50 MHz–3 GHz frequency range of a reference geomaterial (kaolin) during evaporative dewatering. For this material, spatial porosities and gravimetric moisture contents have been estimated based on an advanced mixture model from the measured complex permittivity. Finally, the results have been compared with the average moisture content values obtained from gravimetric measurements. This paper, therefore, underpins the development of robust monitoring systems based on EM methods to study the spatial distribution of state parameters during evaporative dewatering processes.