23 April 2017 Bromothymol blue coated fiber optic Fabry-Perot interferometer for ammonia gas sensor
Author Affiliations +
Proceedings Volume 10323, 25th International Conference on Optical Fiber Sensors; 1032343 (2017) https://doi.org/10.1117/12.2265406
Event: 25th International Conference on Optical Fiber Sensors, 2017, Jeju, Korea, Republic of
Abstract
A single mode fiber is used in this study, in a Y-coupler mode; the mirror tip of which is coated with bromothymol blue (BTB), homogeneously mixed in polyvinyl alcohol (PVA) matrix. The setup operated at 1550 nm, and was used to sense extremely small quantities of ammonia gas, at room temperature. The sensor is able to detect ammonia in the range of 1.5 ppm to 150 ppm; with observed sensitivity in terms of wavelength shift of 0.7 nm. The sensor showed excellent reversibility with fast response and recovery time of the order of few seconds. The possible interaction of dye with ammonia was studied and compared with chloroform.
© (2017) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Dnyandeo Pawar, Dnyandeo Pawar, S. A. Mane, S. A. Mane, S. N. Kale, S. N. Kale, } "Bromothymol blue coated fiber optic Fabry-Perot interferometer for ammonia gas sensor", Proc. SPIE 10323, 25th International Conference on Optical Fiber Sensors, 1032343 (23 April 2017); doi: 10.1117/12.2265406; https://doi.org/10.1117/12.2265406
PROCEEDINGS
4 PAGES


SHARE
Back to Top