| 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)
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| Source Publication | Lasers in Engineering
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| 2012 | |
| Volume | 23Issue:1-2Pages:1-17 |
| ISSN | 0898-1507 |
| Abstract | 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. |
| Keyword | 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 |
| Subject Area | 实验流体力学 |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:000301993100001 |
| Department | LHD高温气流激光诊断 |
| Classification | Q4 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://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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