Limited selectivity of amperometric gas sensors operating in multicomponent gas mixtures and methods of selectivity improvement - Publikacja - MOST Wiedzy

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Limited selectivity of amperometric gas sensors operating in multicomponent gas mixtures and methods of selectivity improvement

Abstrakt

In recent years, smog and poor air quality have became a growing environmental problem. There is a need to continuously monitor the quality of the air. The lack of selectivity is one of the most important problems limiting the use of gas sensors for this purpose. In this study, the selectivity of six amperometric gas sensors is investigated. First, the sensors were calibrated in order to find a correlation between the concentration level and sensor output. Afterwards, the responses of each sensor to single or multicomponent gas mixtures with concentrations from 50 ppb to 1 ppm were measured. The sensors were studied under controlled conditions, a constant gas flow rate of 100 mL/min and 50 % relative humidity. Single Gas Sensor Response Interpretation, Multiple Linear Regression, and Artificial Neural Network algorithms were used to predict the concentrations of SO2 and NO2. The main goal was to study different interactions between sensors and gases in multicomponent gas mixtures and show that it is insufficient to calibrate sensors in only a single gas.

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Kategoria:
Publikacja w czasopiśmie
Typ:
artykuły w czasopismach
Opublikowano w:
Bulletin of the Polish Academy of Sciences-Technical Sciences nr 68, strony 1275 - 1282,
ISSN: 0239-7528
Język:
angielski
Rok wydania:
2020
Opis bibliograficzny:
Dmitrzak M., Jasiński P., Jasiński G.: Limited selectivity of amperometric gas sensors operating in multicomponent gas mixtures and methods of selectivity improvement// Bulletin of the Polish Academy of Sciences-Technical Sciences -Vol. 68,iss. 6 (2020), s.1275-1282
DOI:
Cyfrowy identyfikator dokumentu elektronicznego (otwiera się w nowej karcie) 10.24425/bpasts.2020.134648
Weryfikacja:
Politechnika Gdańska

wyświetlono 133 razy

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