Title :
Sensing of Gas Concentration Using Photonic Bandgap Fiber
Author :
Pawlat, Joanna ; Matsuo, Takahiro ; Ueda, Toshitsugu ; Sugiyama, Tadashi
Author_Institution :
Waseda Univ., Fukuoka
Abstract :
Photonic bandgap (PBG) fiber was developed for a new gas-sensing device. The micro-capillary gas flow inside fiber and light guiding parameters were estimated in order to develop a high-sensitivity gas concentration measuring system. Darcy-Weisbach equation for non-compressible flow and quasi-Panhandle equation for compressible gas flow were used for the calculation of gas velocity. Core diameters of fibers ranged from 10.9 to 700 mum. The results of numerical simulations were compared with experimental results. Attenuation was calculated and concentrations of ammonia and CO2 were measured.
Keywords :
ammonia; chemical variables measurement; compressible flow; gas sensors; photonic band gap; Darcy-Weisbach equation; NH3; ammonia; compressible gas flow; gas concentration; gas sensor; microcapillary gas flow; noncompressible flow; photonic bandgap fiber; quasiPanhandle equation; Carbon dioxide; Fluid flow; Optical buffering; Optical fiber devices; Optical fibers; Optical filters; Optical mixing; Optical sensors; Photonic bandgap fibers; Pressure control;
Conference_Titel :
Sensors, 2006. 5th IEEE Conference on
Conference_Location :
Daegu
Print_ISBN :
1-4244-0375-8
Electronic_ISBN :
1930-0395
DOI :
10.1109/ICSENS.2007.355760
