A compact sensor based on near infrared absorption spectroscopy for flow diagnostics in a low density hydrogen and oxygen combustion driven shock tube

	A compact sensor based on near infrared absorption spectroscopy for flow diagnostics in a low density hydrogen and oxygen combustion driven shock tube
	Yu XL(余西龙); Li F(李飞); Chen LH(陈立红); Chang XY(张新宇)
发表期刊	Lasers in Engineering
	2012
卷号	23 期号:1-2 页码:1-17
ISSN	0898-1507
摘要	A water vapour absorption-based fast-response tunable diode laser (TDL) sensor is developed for flow diagnostics in low density hydrogen and oxygen combustion driven shock tubes. The absorption system was operated in the rapid time-division-multiplexing (TDM) wavelength scanning mode to probe two water vapour absorption features at repetition rate up to 45.5 kHz. Temperature was determined from the ratio of the integrated absorbance of the two individual transitions near 7185.597 and 7168.437 cm^-1, which have high sensitivity of temperature measurement in the range of 500-1300K. Experiments were performed in a 800 mm diameter hydrogen and oxygen combustion driven shock tube. Time resolved temperature and water vapour mole fraction of the driver gas at the fixed position of the test section are provided. Facility test time was also deduced from the non-absorption light intensity signal. The simple data processing and convenient operation made the sensor became a potential routine application for low density shock tube/tunnel.
关键词	Tunable Diode-laser Water-vapor Scramjet Combustor Temperature Gases H2o Co Oh Tunable Diode Laser Absorption Spectroscopy (Tdlas) Combustion Rapid Time-division-multiplexing (Tdm) Temperature Water Vapour Concentration Low Density Shock Tube
学科领域	实验流体力学
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:000301993100001
课题组名称	LHD高温气流激光诊断
论文分区	Q4
引用统计
文献类型	期刊论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/45749
专题	高温气体动力学国家重点实验室
推荐引用方式 GB/T 7714	Yu XL,Li F,Chen LH,et al. A compact sensor based on near infrared absorption spectroscopy for flow diagnostics in a low density hydrogen and oxygen combustion driven shock tube[J]. Lasers in Engineering,2012,23,1-2,:1-17.
APA	Yu XL,Li F,Chen LH,&Chang XY.(2012).A compact sensor based on near infrared absorption spectroscopy for flow diagnostics in a low density hydrogen and oxygen combustion driven shock tube.Lasers in Engineering,23(1-2),1-17.
MLA	Yu XL,et al."A compact sensor based on near infrared absorption spectroscopy for flow diagnostics in a low density hydrogen and oxygen combustion driven shock tube".Lasers in Engineering 23.1-2(2012):1-17.

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