Abstract
Changes in electical conductivity are measured for a tin dioxide-based semiconducting sensor, due to reactions occurring between the original adsorbates and the gases present in the surrounding atmosphere. This gas sensor provides a stable and reproducible performance for indoor monitoring of gas leakage and air contamination. However, this type of gas sensors is not selective and the gas concentrations cannot be precisely estimated. Therefore, a model of the gas sensor response using a linear relationship between the gas concentrations in a mixture and the sensor resistance is proposed. Furthermore, using two gas sensors having different characteristic models it is possible to evaluate the concentrations of gases in a mixture. This method has been applied to evaluate the gas concentrations in ammonia-ethanol and CO-ethanol mixtures. The results of this study indicate that the evaluation of the gas ratio and gas concentrations in a mixture is made feasible by using the proposed model for the gas sensor response.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
