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Proceedings Paper

Coherent anti-stokes Raman scattering thermometry applied to a supersonic combustor
Author(s): Li-rong Zhang; Zhi-yun Hu; Jing-feng Ye; Zhen-rong Zhang; Sheng Wang; Jing-ru Liu
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Paper Abstract

A mobile diagnostic system based on Unstable-resonator Spatially Enhanced Detection Coherent anti-Stokes Raman Scattering (USED CARS) geometry was established, which was used for temperature measurements in a model supersonic combustor. The temporal and spatial resolution of this mobile CARS system are 10ns and Ф0.1mm×5mm respectively. Single pulse nitrogen CARS spectrum with high signal to noise ratio(SNR) were obtained at the exhaust of model combustor through high stability optical design, and the temperatures were acquired by Levenberg-Marquarat fitting algorithm. The mean temperature of the unstable combustion is 1412K, and the mean temperature of the stable combustion is 1705K.

Paper Details

Date Published: 16 May 2013
PDF: 5 pages
Proc. SPIE 8796, 2nd International Symposium on Laser Interaction with Matter (LIMIS 2012), 87961F (16 May 2013); doi: 10.1117/12.2011239
Show Author Affiliations
Li-rong Zhang, Northwest Institute of Nuclear Technology (China)
Zhi-yun Hu, Northwest Institute of Nuclear Technology (China)
Jing-feng Ye, Northwest Institute of Nuclear Technology (China)
Zhen-rong Zhang, Northwest Institute of Nuclear Technology (China)
Sheng Wang, Northwest Institute of Nuclear Technology (China)
Jing-ru Liu, Northwest Institute of Nuclear Technology (China)


Published in SPIE Proceedings Vol. 8796:
2nd International Symposium on Laser Interaction with Matter (LIMIS 2012)
Stefan Kaierle; Jingru Liu; Jianlin Cao, Editor(s)

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