scholarly journals Measuring spectral parameters of water vapor at low temperature based on tunable diode laser absorption spectroscopy

2017 ◽  
Vol 66 (20) ◽  
pp. 204204
Author(s):  
Nie Wei ◽  
Kan Rui-Feng ◽  
Xu Zhen-Yu ◽  
Yao Lu ◽  
Xia Hui-Hui ◽  
...  
Keyword(s):  
Water Vapor ◽  
Low Temperature ◽  
Diode Laser ◽  
Absorption Spectroscopy ◽  
Tunable Diode Laser ◽  
Laser Absorption Spectroscopy ◽  
Spectral Parameters ◽  
Laser Absorption ◽  
Diode Laser Absorption

Measurement of Trace Water Vapor Based on Tunable Diode Laser Absorption Spectroscopy

2018 ◽  
Vol 38 (11) ◽  
pp. 1130004
Author(s):  
臧益鹏 Zang Yipeng ◽  
聂伟 Nie Wei ◽  
许振宇 Xu Zhenyu ◽  
彭于权 Peng Yuquan ◽  
阚瑞峰 Kan Ruifeng
Keyword(s):  
Water Vapor ◽  
Diode Laser ◽  
Absorption Spectroscopy ◽  
Tunable Diode Laser ◽  
Laser Absorption Spectroscopy ◽  
Laser Absorption ◽  
Trace Water ◽  
Diode Laser Absorption

Measurement of low water vapor dew-point temperature based on tunable diode laser absorption spectroscopy

2018 ◽  
Vol 26 (8) ◽  
pp. 1862-1869
Author(s):  
聂 伟 NIE Wei ◽  
许振宇 XU Zheng-yu ◽  
阚瑞峰 KAN Rui-feng ◽  
阮 俊 RUAN Jun ◽  
姚 路 YAO Lu ◽  
...  
Keyword(s):  
Water Vapor ◽  
Diode Laser ◽  
Absorption Spectroscopy ◽  
Dew Point ◽  
Tunable Diode Laser ◽  
Laser Absorption Spectroscopy ◽  
Point Temperature ◽  
Dew Point Temperature ◽  
Laser Absorption ◽  
Diode Laser Absorption

Measurement of Gas Temperature in a Large Enclosure by Tunable Diode Laser Absorption Spectroscopy

2013 ◽  
Author(s):  
Jun Tian ◽  
Zulong Hao ◽  
Yu Yu ◽  
Huagui Li ◽  
Jianjun He ◽  
...  
Keyword(s):  
Water Vapor ◽  
Diode Laser ◽  
Absorption Spectroscopy ◽  
Hot Water ◽  
Tunable Diode Laser ◽  
Absorption Lines ◽  
Laser Absorption Spectroscopy ◽  
Convection And Heat Transfer ◽  
Laser Absorption ◽  
Diode Laser Absorption

In order to study the mechanism of mixed-convection and heat transfer when injecting hot water vapor into the containment, it is necessary to measure temperature distribution inside it. To overcome the shortcomings of traditional thermocouples technique during injection experiments of water vapor, a new temperature measurement method based on tunable diode laser absorption spectroscopy (TDLAS) was proposed in this paper. The TDLAS technique is based on the detection of H2O absorption lines with different energies of low levels, and the spectra can be recorded using a laser detector. The data of H2O absorption lines were selected from HITRAN2004 to obtain a pair of optimal absorption lines. A preliminary design of experimental system was presented as well as parameters selection. According to the problems when applying TDLAS, the corresponding solutions were proposed.

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