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Highly responsive co2 detection by an improved & compact gas sensor using mid-ir spectroscopy

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dc.contributor.author Rashidi Salim, Mohd
dc.contributor.author Haniff Ibrahim, Mohd
dc.contributor.author Izam Azmi, Asrul
dc.contributor.author Yusof Mohd Noor, Muhammad
dc.contributor.author Sharmi Abdullah, Ahmad
dc.contributor.author Hafizah Ngajikin, Nor
dc.contributor.author Manap, Hadi
dc.contributor.author Dooly, Gerard
dc.contributor.author Lewis, Elfed
dc.date.accessioned 2018-10-15T11:35:35Z
dc.date.available 2018-10-15T11:35:35Z
dc.date.issued 2018
dc.identifier.uri http://hdl.handle.net/10344/7229
dc.description peer-reviewed en_US
dc.description.abstract An improved and compact gas sensor using mid-infrared spectroscopy for highly responsive Carbon Dioxide (CO2) detection is presented. The sensing principle is based on open-path direct absorption spectroscopy in the mid-infrared region. The improved reflective structure of optical gas sensor consists of low cost and compact components. Several gas cell configuration which includes SISO, 2-MISO, 4-MISO and 8-MISO were simulated using ZEMAX®12 using non-sequential ray tracing technique to get the optimum radius of the reflective curved surface. Sensitivity analysis has shown that the optimised structure of 4-MISO yields the highest sensitivity and power efficiency of -0.2895%-1 and 12.298% respectively. The developed gas sensing system using the optimised gas cell has shown the capability of accurately detecting CO2 concentration between 1.5% and 5.8% with no cross-sensitivity with other gases present in the gas cell. The newly developed CO2 sensor exhibits high responsivity with the recorded rise time and fall time of less than 1 second respectively. en_US
dc.language.iso eng en_US
dc.publisher Faculty of Electronic and Computer Engineering (FKEKK), Universiti Teknikal Malaysia Melaka (UTeM). en_US
dc.relation.ispartofseries Journal of Telecommunication, Electronic and Computer Engineering;10 (2-8)
dc.relation.uri http://journal.utem.edu.my/index.php/jtec/issue/view/201
dc.subject carbon dioxide sensor en_US
dc.subject mid-infrared en_US
dc.subject responsivity en_US
dc.subject spectroscopy en_US
dc.title Highly responsive co2 detection by an improved & compact gas sensor using mid-ir spectroscopy en_US
dc.type info:eu-repo/semantics/article en_US
dc.type.supercollection all_ul_research en_US
dc.type.supercollection ul_published_reviewed en_US
dc.contributor.sponsor Ministry of Higher Education (MOHE), Faculty of Electrical Engineering, Research Management Centre, Universiti Teknologi Malaysia (UTM) en_US
dc.relation.projectid Q.J130000.2723.02K79 en_US
dc.rights.accessrights info:eu-repo/semantics/openAccess en_US
dc.internal.rssid 2889973


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