IMECH-IR  > 高温气体动力学国家重点实验室
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)
Source PublicationLasers in Engineering
2012
Volume23Issue:1-2Pages:1-17
ISSN0898-1507
AbstractA 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.
KeywordTunable 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
Subject Area实验流体力学
Indexed BySCI ; EI
Language英语
WOS IDWOS:000301993100001
DepartmentLHD高温气流激光诊断
ClassificationQ4
Citation statistics
Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/45749
Collection高温气体动力学国家重点实验室
Recommended Citation
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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