Two-dimensional temperature measurements in particle loaded technical flames by filtered Rayleigh scattering

被引：20

作者：

Mueller, D. ^{[1
]}

Pagel, R. ^{[1
]}

Burkert, A. ^{[1
]}

Wagner, V. ^{[1
]}

Paa, W. ^{[1
]}

机构：

[1] Leibniz Inst Photon Technol, D-07745 Jena, Germany

来源：

APPLIED OPTICS | 2014年 / 53卷 / 09期

关键词：

LASER-INDUCED-FLUORESCENCE; TUNABLE EXCIMER LASERS; COMBUSTION; NANOPARTICLES; SPECTROSCOPY; DIAGNOSTICS; VELOCIMETRY; SIO2;

D O I：

10.1364/AO.53.001750

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Filtered Rayleigh scattering (FRS) is applied to determine two-dimensional temperature distributions in a hexamethyldisiloxane loaded propane/air flame intended for combustion chemical vapor deposition processes. An iodine cell as a molecular filter suppresses background scattering, e.g., by particles, while the wings of the spectrally broadened Rayleigh scattering can pass this filter. A frequency-doubled Nd:YAG laser is tuned to a strong absorption line of iodine. The gas temperature is deduced from the transmitted Rayleigh scattering signal. Since FRS also depends on molecule-specific scattering cross sections, the local gas composition of majority species is measured using the Raman scattering technique. Limits and restrictions are discussed. (C) 2014 Optical Society of America

引用

页码：1750 / 1758

页数：9

共 31 条

[1] LASER-INDUCED FLUORESCENCE WITH TUNABLE EXCIMER LASERS AS A POSSIBLE METHOD FOR INSTANTANEOUS TEMPERATURE-FIELD MEASUREMENTS AT HIGH-PRESSURES - CHECKS WITH AN ATMOSPHERIC FLAME [J].