Study on the Sensing Coating of the Optical Fibre CO2 Sensor
| Autor: | Tomasz Nasilowski, Karol Wysokiński, Marek Napierala, Tomasz Stańczyk, Stanisław Lipiński |
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| Jazyk: | angličtina |
| Rok vydání: | 2015 |
| Předmět: |
Optical fiber
Materials science silica gels Nanotechnology engineering.material lcsh:Chemical technology Biochemistry optical fiber sensors CO2 sensors gas sensors chemical sensors sol-gel coatings indicator dyes absorption-based sensors Article Analytical Chemistry law.invention chemistry.chemical_compound Coating law lcsh:TP1-1185 Electrical and Electronic Engineering Absorption (electromagnetic radiation) Instrumentation business.industry Silica gel Thymol blue Atomic and Molecular Physics and Optics Carbon dioxide sensor chemistry Fiber optic sensor Methyl red engineering Optoelectronics business |
| Zdroj: | Sensors (Basel, Switzerland) Sensors, Vol 15, Iss 12, Pp 31888-31903 (2015) Sensors Volume 15 Issue 12 Pages 31888-31903 Sensors; Volume 15; Issue 12; Pages: 31888-31903 |
| ISSN: | 1424-8220 |
| Popis: | Optical fibre carbon dioxide (CO2) sensors are reported in this article. The principle of operation of the sensors relies on the absorption of light transmitted through the fibre by a silica gel coating containing active dyes, including methyl red, thymol blue and phenol red. Stability of the sensor has been investigated for the first time for an absorption based CO2 optical fiber sensor. Influence of the silica gel coating thickness on the sensitivity and response time has also been studied. The impact of temperature and humidity on the sensor performance has been examined too. Response times of reported sensors are very short and reach 2–3 s, whereas the sensitivity of the sensor ranges from 3 to 10 for different coating thicknesses. Reported parameters make the sensor suitable for indoor and industrial use. |
| Databáze: | OpenAIRE |
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