Title :
Design of Diode Laser Sensor Based on TDLAS for Rocket Based Combined Cycle
Author :
Bin Yang ; Guo-Qiang He ; Pei-jin Liu ; Zong-man Qi
Author_Institution :
Nat. Key Lab. of Combustion, Flow & Thermo-Struct., Northwestern Polytech. Univ., Xi´an, China
Abstract :
Tunable Diode Laser Absorption Spectroscopy (TDLAS) can offer significant opportunities and advantages for in-situ measurements of multiple parameters in gas dynamic and combustion flows. In this paper, with regard to Rocket Based Combined Cycle (RBCC), which is hydrocarbon combustion environments over the temperature range 1000-2500K, three beams diode laser sensor based on Direct Absorption Spectroscopy (DAS) for measurements of temperature, species concentration and velocity is designed by using the transitions selection criterions with different two-line schemes of water vapor in 1.25-1.65μm.
Keywords :
chemical variables measurement; optical design techniques; optical sensors; semiconductor lasers; spectroscopy; temperature measurement; velocity measurement; TDLAS; concentration measurements; diode laser sensor; direct absorption spectroscopy; hydrocarbon combustion; rocket based combined cycle; temperature 1000 K to 2500 K; temperature measurements; thus; transition selection criterions; tunable diode laser absorption spectroscopy; two-line schemes; velocity measurements; wavelength 1.25 mum to 1.65 mum; Absorption; Combustion; Diode lasers; Laser beams; Measurement by laser beam; Temperature measurement; Temperature sensors;
Conference_Titel :
Photonics and Optoelectronics (SOPO), 2011 Symposium on
Conference_Location :
Wuhan
Print_ISBN :
978-1-4244-6555-2
DOI :
10.1109/SOPO.2011.5780484
