COMBINED VIBRATIONAL AND ROTATIONAL CARS FOR SIMULTANEOUS MEASUREMENTS OF TEMPERATURE AND CONCENTRATIONS OF FUEL, OXYGEN, AND NITROGEN

被引：30

作者：

BENGTSSON, PE

MARTINSSON, L

ALDEN, M

机构：

来源：

APPLIED SPECTROSCOPY | 1995年 / 49卷 / 02期

关键词：

ROTATIONAL CARS; VIBRATIONAL CARS; CONCENTRATION MEASUREMENTS; TEMPERATURE MEASUREMENTS;

D O I：

10.1366/0003702953963670

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

Simultaneous measurements of temperature and relative concentrations of fuel, oxygen, and nitrogen using combined vibrational coherent anti-Stokes Raman Spectroscopy (CARS) and dual-broad-band rotational CARS have been demonstrated with the nse of a Nd:YAG laser and a single dye laser. With the use of a double-folded BOXCARS phase-matching scheme, both the vibrational and the rotational CARS signals were generated in such a way that the signals were superimposed at the spectrograph. With an additional mirror arrangement inside the spectrograph, both signals were recorded simultaneously on a single diode-array detector. The accuracy of single-shot fuel concentration measurements has been investigated, and measurements in a methane/air diffusion flame have been demonstrated. The influence of systematic errors on measured concentrations is discussed.

引用

页码：188 / 192

页数：5

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