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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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Tarantino, Alessandro
University of Strathclyde
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (11/11 displayed)
- 2021Microstructural evolution and mechanical behaviour of alkali activated fly ash binder treated claycitations
- 2021Investigation on the attractive forces controlling clay particles' interactionscitations
- 2020Electromagnetic sensors for underwater scour monitoringcitations
- 2018An experimental investigation into the micromechanics of non-active clayscitations
- 2016Building the UPPA high capacity tensiometercitations
- 2016An experimental investigation of the independent effect of suction and degree of saturation on very small-strain stiffness of unsaturated sandcitations
- 2015Wireless monitoring of scour and re-deposited sediment evolution at bridge foundations based on soil electromagnetic propertiescitations
- 2015Effects of high temperatures on soil properties
- 2015MEMS sensor-based monitoring system for engineered geological disposal facilitiescitations
- 2008Field measurement of suction, water content, and water permeabilitycitations
- 2008Preface: special issue on laboratory and field testing of unsaturated soilscitations
Places of action
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article
MEMS sensor-based monitoring system for engineered geological disposal facilities
Abstract
The design of a novel MEMS (Micro-Electro-Mechanical System) sensor-based monitoring system is presented in this article for the in-situ monitoring of the conditions (temperature, relative humidity) of an engineered bentonite barrier for the underground disposal of radioactive waste in a geological disposal facility (GDF). A first prototype of the monitoring system incorporating multiple state-of-the-art MEMS sensors has been developed on a PCB-based (Printed Circuit Board) structure, in order to measure the variation of temperature and relative humidity inside a cylindrical bentonite block during the hydration process. The monitoring system comprises of separate sensor boards, the microcontroller-equipped interface board, and the software user interface in Labview environment. One of the main design priorities is to reduce the size of the embedded sensors in order to minimize their influence on the hydro-mechanical response of the bentonite block. The sensor boards are encapsulated in different manners to protect them from moisture, chemical corrosion and mechanical shocks. The sensor system has been tested and calibrated in the temperature range between -20°C and 120°C, and at different relative humidity levels implemented by saturated salt solutions in enclosed containers. Test results demonstrate that the sensors have shown good functionality and robustness in harsh test environments such as high temperature and high humidity. Both temperature and relative humidity sensors have shown satisfactory precision level and temporal stability, which are in good accordance with the design specification of these devices.