Spectroscopy and Spectral Analysis, Volume. 37, Issue 7, 2004(2017)
Measurements of Gas Parameters Based on the Laser Absorption Spectroscopy in Non-Uniform Flow
In order to explore the application of laser absorption spectroscopy in the non-uniform flow, a new strategy that provides quantitative measurements of gas parameters in non-uniform environments are put forward. After evaluating the range of temperature in the field and choosing the appropriate transitions whose strengths that scale linearly with temperature, the H2O mole-fraction-weighted path-average temperature and geometric path-average H2O mole fraction can be quantitatively measured. The simulated results from two-temperature and Gaussian-temperature distribution model show the availability and reliability of this method. Compared with theoretical value, the relative errors of measured results in the two-temperature distribution model are 082% and 110% while the most relative errors in the Gaussian-temperature distribution model are 09% and 36%.
Get Citation
Copy Citation Text
QU Dong-sheng, HONG Yan-ji, WANG Guang-yu, WANG Ming-dong, PAN Hu. Measurements of Gas Parameters Based on the Laser Absorption Spectroscopy in Non-Uniform Flow[J]. Spectroscopy and Spectral Analysis, 2017, 37(7): 2004
Received: Apr. 13, 2016
Accepted: --
Published Online: Aug. 30, 2017
The Author Email: Dong-sheng QU (hnqudongsheng@126.com)