| Autor: |
Rossignol Jerome, Brousse Olivier, Grzelak Ludmilla, Paindavoine Michel, Lasserre Alexis, Pribetich Pierre, Stuerga Didier |
| Rok vydání: |
2020 |
| Předmět: |
|
| Zdroj: |
2020 IEEE SENSORS. |
| DOI: |
10.1109/sensors47125.2020.9278728 |
| Popis: |
The impact of carrier gas species on the response of microwave gas sensor at room temperature is estimated in this paper. The microwave transduction is a good candidate for embedded sensing devoted to Internet of Things. The sensing characteristics are investigated (drift of the baseline, reversibility, recovery time, kinetics) with air and argon flow. Ammonia is chosen for the detection in a wide range of concentration [20 -500 ppm] according to the various cases in agri-food, petrochemical and freezing applications. The substrate is flexible (Duroid). The used sensitive material is TiO 2 super-substrate on a microstrip spiral resonator. The pattern is a trapezoidal spiral working in wide-band of frequencies [1-8 GHz]. In these conditions of sensing, the kinetic of adsorption and desorption and its order are evaluated. Sensing mechanisms are discussed. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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