Quantitative multi-line NO-LIF temperature imaging

被引：83

作者：

Bessler, WG ^{[1
]}

Schulz, C ^{[1
]}

机构：

[1] Heidelberg Univ, Inst Phys Chem, D-69120 Heidelberg, Germany

来源：

APPLIED PHYSICS B-LASERS AND OPTICS | 2004年 / 78卷 / 05期

关键词：

D O I：

10.1007/s00340-004-1421-x

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A novel temperature-imaging technique based on laser-induced fluorescence of nitric oxide is presented, analyzed and applied. Multi-line rotational thermometry is combined with an efficient spectra-fitting procedure in an imaging configuration. The technique is sensitive over a wide range of temperatures and robustly applicable to different steady combustion and flow systems. Application is shown in premixed and partially premixed ethylene/air Bunsen flames with equivalence ratios between 0.7 and 3.0, and the results are compared to coherent anti-Stokes Raman-scattering temperature measurements. The technique is robust against strong elastic scattering from soot in the rich flames. It yields absolute, quantitative temperature measurements without the necessity of external calibration.

引用

页码：519 / 533

页数：15

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