An optical spectroscopic based reflective sensor for CO2 measurement with signal to noise ratio improvement

• Main Authors: Salim, Mohd. Rashidi, Yaacob, Maslina, Ibrahim, Mohd. Haniff, Azmi, A. I., Ngajikin, Nor Hafizah, Dooly, Gerard, Lewis, Elfed
• Format: Article
• Published: National Institute of Optoelectronics 2015
• Subjects: TK Electrical engineering. Electronics Nuclear engineering
• Online Access: http://eprints.utm.my/id/eprint/57781/
• Institution: Universiti Teknologi Malaysia

This paper presents recent work in measuring carbon dioxide (CO2) using an absorption spectroscopy method within themid-IR region. A multi-path optical fibre based reflective sensor is proven to be capable of detecting CO2at lower level(<15%) and higher level of concentration (>15%). For low l...