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Title: Compensation of temperature variations in chemcapacitive gas sensing systems
Authors: Οικονόμου, Πέτρος
Μποτσιάλας, Αθανάσιος Γ.
Γουστουρίδης, Δημήτριος
Βαλαμόντες, Ευάγγελος Σ.
Σανοπούλου, Μερόπη
Contributors: Ράπτης, Ιωάννης Α.
Item type: Journal article
Keywords: Capacitive Chemical Sensors;Humidity;Polymers;Χωρητικοί χημικοί αισθητήρες;Υγρασία;Πολυμερή
Subjects: Technology
Electrical engineering
Ηλεκτρολογία Μηχανολογία
Issue Date: 18-May-2015
Publisher: American Scientific Publishers
Abstract: Laboratory evaluation of gas sensing systems is usually performed under well-controlled experimental conditions. However, in real applications, environmental parameters, such as temperature and humidity, are likely to be unstable. In this work, the effect of temperature variations ranging from 0.5–3 °C, on the signal of a chemocapacitor sensor array, equilibrated at different levels of relative humidity is studied. Accurate recording of temperature concurrently to the capacitance signal of the sensors enabled us to develop a temperature (ΔT)-capacitance (ΔC) calibration curve for each sensor. The linear ΔC–ΔT relations were found to depend on the specific polymeric sensing layer, and were then used to demonstrate the importance of the said correction in Volatile Organic Compounds (VOCs) sensing in humid environment and under relatively unstable temperature conditions. Additionally, the sensors response under static and under dynamic headspace conditions was compared.
Language: English
Citation: OIKONOMOU, P., BOTSIALAS, A.G., GOUSTOURIDIS, D., VALAMONTES, E.S., SANOPOULOU, M., et al. (2012). Compensation of temperature variations in chemcapacitive gas sensing systems. Sensor Letters. [online] 10 (3-4). p. 736-741. Available from:
Journal: Sensor Letters
Type of Journal: With a review process (peer review)
Access scheme: Embargo
License: Αναφορά Δημιουργού-Μη Εμπορική Χρήση-Όχι Παράγωγα Έργα 3.0 Ηνωμένες Πολιτείες
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