Combined TDLAS and OES technique for CO concentration measurement in shock-heated Martian atmosphere

	Combined TDLAS and OES technique for CO concentration measurement in shock-heated Martian atmosphere
	Lin X(林鑫); Yu XL(余西龙); Li F(李飞); Zhang SH(张少华); Xin JG; Zhang XY(张新宇); Yu, XL (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab High Temp Gas Dynam, Beijing 100190, Peoples R China.
会议录名称	2ND INTERNATIONAL SYMPOSIUM ON LASER INTERACTION WITH MATTER (LIMIS 2012)
	2013
页码	87961J
会议名称	2nd International Symposium on Laser Interaction with Matter (LIMIS)
会议日期	SEP 09-12, 2012
会议地点	Xian, PEOPLES R CHINA
摘要	This paper describes the CO concentration and gas temperature distribution measurements behind a strong shock wave in the simulated Martian atmosphere by an optical diagnostic system. The strong shock wave (6.31 ± 0.11 km/s) is established in a shock tube driven by combustion of hydrogen and oxygen. The optical diagnostic system consists of two parts: the optical emission spectroscopy (OES) system and the tunable diode laser absorption spectroscopy (TDLAS) system. For OES system, high temporal and spatial resolution experimental spectra of CN violet system (B-2 Sigma(+)-> X-2 Sigma(+), Delta v = 0 sequence) have been observed. Rotational and vibrational temperature distribution along the shock wave is inferred through a precise analysis of high-resolution experimental spectra. For TDLAS system, a CO absorption line near 2335.778 nm is utilized for detecting the CO concentration using scanned-wavelength direct absorption mode. Combined with these experimental results using OES, CO concentration in the thermal equilibrium region is derived. The detected average CO concentration is 7.46 x 10(12) cm(-3) with the average temperature of 7400 K ± 300 K, which corresponds to the center fractional absorption of 2.7%.
关键词	Optical Emission Spectroscopy (Oes) Tunable Diode Laser Absorption Spectroscopy (Tdlas) Shock Wave Temperature Concentration
WOS记录号	WOS:000323339600055
课题组名称	LHD高温气流激光诊断
ISBN号	978-0-8194-9639-3
URL	查看原文
收录类别	CPCI-S ; EI
语种	英语
引用统计
文献类型	会议论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/47566
专题	高温气体动力学国家重点实验室
通讯作者	Yu, XL (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab High Temp Gas Dynam, Beijing 100190, Peoples R China.
推荐引用方式 GB/T 7714	Lin X,Yu XL,Li F,et al. Combined TDLAS and OES technique for CO concentration measurement in shock-heated Martian atmosphere[C]2ND INTERNATIONAL SYMPOSIUM ON LASER INTERACTION WITH MATTER (LIMIS 2012),2013:87961J.

条目包含的文件		下载所有文件
文件名称/大小	文献类型	版本类型	开放类型	使用许可
IMCAS-Conf2013-008.p（683KB）	会议论文		开放获取	CC BY-NC-SA	浏览下载