| 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.
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| Source Publication | 2ND INTERNATIONAL SYMPOSIUM ON LASER INTERACTION WITH MATTER (LIMIS 2012) |
| 2013 | |
| Pages | 87961J |
| Conference Name | 2nd International Symposium on Laser Interaction with Matter (LIMIS) |
| Conference Date | SEP 09-12, 2012 |
| Conference Place | Xian, PEOPLES R CHINA |
| Abstract | 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%. |
| Keyword | Optical Emission Spectroscopy (Oes) Tunable Diode Laser Absorption Spectroscopy (Tdlas) Shock Wave Temperature Concentration |
| WOS ID | WOS:000323339600055 |
| Department | LHD高温气流激光诊断 |
| ISBN | 978-0-8194-9639-3 |
| URL | 查看原文 |
| Indexed By | CPCI-S ; EI |
| Language | 英语 |
| Citation statistics | |
| Document Type | 会议论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/47566 |
| Collection | 高温气体动力学国家重点实验室 |
| Corresponding Author | Yu, XL (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab High Temp Gas Dynam, Beijing 100190, Peoples R China. |
| Recommended Citation 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. |
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| IMCAS-Conf2013-008.p（683KB） | 会议论文 | 开放获取 | CC BY-NC-SA | View Download | ||
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