The design and basic principles of an experimental setup comprising a microwave-based moisture measurement system with a humid air generator is described. The combination of these two instruments implements a measurement technique similar in principle to that performed by a dynamic vapor sorption system. This technique enables a rapid determination of adsorption/desorption isotherms of moist samples implementing a secondary standard for on-site moisture measurements. Traceability to primary methods, such as loss-on-drying (LoD) or coulometric Karl Fischer (cKF) titration, can be achieved by preliminary calibration of the microwave resonances of a cylindrical resonator. We report preliminary tests of the performance of the whole system as used to determine the moisture content of tobacco.

Progress towards traceable microwave moisture measurements / Chirivì, E.; Gavioso, R. M.; Madonna Ripa, D.; Smorgon, D.; Beltramino, G.; Sega, M; Rolle, F.; Rosso, L.; Fernicola, V.. - (2016), pp. 277-283. ((Intervento presentato al convegno 11th International Conference on Electromagnetic Wave Interaction with Water and Moist Substances (ISEMA 2016) tenutosi a Florence nel 23-27 May 2016.

Progress towards traceable microwave moisture measurements

Gavioso R. M.;Madonna Ripa D.;Smorgon D.;Beltramino G.;Sega M;Rolle F.;Rosso L.;Fernicola V.
2016

Abstract

The design and basic principles of an experimental setup comprising a microwave-based moisture measurement system with a humid air generator is described. The combination of these two instruments implements a measurement technique similar in principle to that performed by a dynamic vapor sorption system. This technique enables a rapid determination of adsorption/desorption isotherms of moist samples implementing a secondary standard for on-site moisture measurements. Traceability to primary methods, such as loss-on-drying (LoD) or coulometric Karl Fischer (cKF) titration, can be achieved by preliminary calibration of the microwave resonances of a cylindrical resonator. We report preliminary tests of the performance of the whole system as used to determine the moisture content of tobacco.
11th International Conference on Electromagnetic Wave Interaction with Water and Moist Substances (ISEMA 2016)
23-27 May 2016
Florence
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11696/68363
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