Title :
Mathematical modeling for SnO2 gas sensor based on second-order response
Author :
Moshayedi, Ata Jahangir ; Toudeshki, Arash ; Gharpure, Dayamanti C.
Author_Institution :
Dept. of Electron. Sci., Univ. of Pune, Pune, India
Abstract :
Sensors, work on the entrance gate for exploring dynamic environments and system response. The sensor behavior plays an important role in system modeling. Therefore, finding the mathematical model, which can describe the sensor response with maximum information over time in different environments and situations, is necessary. This paper, attempts to model the optimal transfer function of the SnO2 type gas sensor (TGS 813) for transient response and steady-state zones, based on the acquired data of the sensor. The model could be used to obtain the mathematical equation for the response, as a transfer function based on different concentrations, for the specific temperature and humidly. The data analysis has been done with Matlab software, and Genetic algorithm is further used to optimize the transfer function parameters. Moreover, the effect of variation in concentration on the transfer function coefficients has been explored. The results show that the modeling can be helpful for sensor response behavior simulation as well as physical and chemical reaction investigation.
Keywords :
data acquisition; data analysis; gas sensors; genetic algorithms; mathematical analysis; tin compounds; transfer functions; Matlab software; SnO2; TGS 813; chemical reaction investigation; data acquisition; data analysis; gas sensor; genetic algorithm; mathematical modeling; optimal transfer function coefficient; physical reaction investigation; second-order response; steady-state zone; transient response; Atmospheric modeling; Data models; Gas detectors; Mathematical model; Temperature sensors; Transfer functions; TGS 813; gas sensor; genetic algorithm (GA); second-order response; transfer function model; transient estimation;
Conference_Titel :
Industrial Electronics and Applications (ISIEA), 2013 IEEE Symposium on
Conference_Location :
Kuching
Print_ISBN :
978-1-4799-1124-0
DOI :
10.1109/ISIEA.2013.6738963