TY - JOUR
T1 - An optical fiber methane sensing system employing a two-step reference measuring method
AU - Jiang, Yi
AU - Tang, Caijie
PY - 2008/7/28
Y1 - 2008/7/28
N2 - An optical fiber methane sensing system utilizing a super-luminescent diode (SLD) in the 1.33-μm band and a fiber Fabry-Perot tunable filter (FFP-TF) is developed. A two-step reference measuring method, which is based on differential absorption technique, is employed; a reference channel is introduced to eliminate the fluctuation of the illuminant spectrum, and the reference wavelength acquired by tuning the FFP-TF is introduced to eliminate the environmental influence. The two-step reference measuring method has improved the reliability and stability of the system. A minimum detectable methane concentration of ∼0.3% has been experimentally achieved.
AB - An optical fiber methane sensing system utilizing a super-luminescent diode (SLD) in the 1.33-μm band and a fiber Fabry-Perot tunable filter (FFP-TF) is developed. A two-step reference measuring method, which is based on differential absorption technique, is employed; a reference channel is introduced to eliminate the fluctuation of the illuminant spectrum, and the reference wavelength acquired by tuning the FFP-TF is introduced to eliminate the environmental influence. The two-step reference measuring method has improved the reliability and stability of the system. A minimum detectable methane concentration of ∼0.3% has been experimentally achieved.
KW - Differential absorption
KW - Methane detection
KW - Optical fiber sensor
UR - http://www.scopus.com/inward/record.url?scp=46449118821&partnerID=8YFLogxK
U2 - 10.1016/j.snb.2008.02.009
DO - 10.1016/j.snb.2008.02.009
M3 - Article
AN - SCOPUS:46449118821
SN - 0925-4005
VL - 133
SP - 174
EP - 179
JO - Sensors and Actuators, B: Chemical
JF - Sensors and Actuators, B: Chemical
IS - 1
ER -