MEASURING THE CONCENTRATION OF MINOR SPECIES FROM THE MODULATION DIP OF THE NONRESONANT BACKGROUND OF BROAD-BAND CARS SPECTRA

被引：11

作者：

HAHN, JW

PARK, SN

LEE, ES

RHEE, C

KANG, KT

CHUNG, SH

CHOI, CY

HUH, YD

机构：

[1] SEOUL NATL UNIV,DEPT MECH ENGN,SEOUL 151742,SOUTH KOREA

[2] DANKOOK UNIV,DEPT CHEM,SEOUL 140714,SOUTH KOREA

来源：

APPLIED SPECTROSCOPY | 1993年 / 47卷 / 06期

关键词：

CARS; CONCENTRATION MEASUREMENT; FLAME SPECTROSCOPY; RAMAN SPECTROSCOPY; SPECTROSCOPIC TECHNIQUES;

D O I：

10.1366/0003702934067009

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

A new technique for measuring the concentration of species from the modulation dip of the nonresonant background of broad-band CARS spectra has been proposed. To reduce the mode noise superimposed on the CARS spectra, we used a modeless laser generating amplified spontaneous emission as the Stokes beam of the broad-band CARS. The modulation dip induced by a minor species, CO in Ar, was numerically calculated and fitted as a function of CO concentration and temperature. We applied this technique in measuring CO concentration in a static cell and also the profile of CO concentration in a CH4/air premixed flame of a counterflow burner.

引用

页码：710 / 714

页数：5

共 37 条

[1] APPLICATION OF CARS SPECTROSCOPY TO THE DETECTION OF SO2 [J].