摘要
Based on a special catalyst and fiber Bragg gratings (FBGs), an optical sensing system is proposed to measure the concen- tration of methane. The temperature of the catalyst rises rapidly as the concentration of methane increases, and hence it can be detected by an FBG-type sensor through monitoring the wavelength shift of the reflection spectrum. The experimental results show the good performances of our system, such as the high resolution and temperature stability.
基金
partially supported by Zhejiang provincial government(under grant No. 2004C31G2010019)
Hangzhou municipalgovernment (under grant No. 20051321B14)
