DOUBLE-PULSE TECHNIQUE FOR THE EVALUATION OF THE SATURATION PARAMETER IN SINGLE-SHOT LASER-INDUCED FLUORESCENCE MEASUREMENTS - AN APPLICATION TO LEAD IN A FLAME

被引:5
作者
CIGNOLI, F [1 ]
BENECCHI, S [1 ]
ZIZAK, G [1 ]
机构
[1] CNR,IST RICERCHE PROPULS & ENERGET,CPNM,I-20068 PESCHIERA GARDA,ITALY
关键词
DOUBLE PULSE; LASER INDUCED FLUORESCENCE; LEAD; SATURATION PARAMETER;
D O I
10.1016/0584-8547(95)01315-6
中图分类号
O433 [光谱学];
学科分类号
0703 ; 070302 ;
摘要
The enlargement of the probe volume in saturated laser induced fluorescence measurement is a considerable drawback for absolute concentration measurements. For practical purposes, a double pulse technique was developed allowing determination of the saturation parameter, which has a major influence on the probe volume enlargement. The technique is based on the detection of the fluorescence produced by two time-delayed laser pulses of different intensity. The basic theory of the technique is presented, together with the results of an experimental application to Pb in an acetylene/air flame. The implications for absolute concentration measurements are also discussed.
引用
收藏
页码:847 / 855
页数:9
相关论文
共 31 条
[1]   ANOMALOUS SATURATION CURVES IN LASER-INDUCED FLUORESCENCE [J].
ALKEMADE, CTJ .
SPECTROCHIMICA ACTA PART B-ATOMIC SPECTROSCOPY, 1985, 40 (10-12) :1331-1368
[2]   LIFETIME MEASUREMENTS OF METASTABLE STATES OF AU, BI, CD, MG, PB, AND SR IN AN ACETYLENE AIR FLAME BY LASER-ENHANCED IONIZATION SPECTROMETRY [J].
AXNER, O ;
LJUNGBERG, P ;
MALMSTEN, Y .
APPLIED PHYSICS B-PHOTOPHYSICS AND LASER CHEMISTRY, 1992, 54 (02) :144-155
[3]   SOME CHARACTERISTICS OF LASER-EXCITED ATOMIC FLUORESCENCE IN A 3-LEVEL SCHEME [J].
BOLSHOV, MA ;
ZYBIN, AV ;
KOLOSHNIKOV, VG ;
KOSHELEV, KN .
SPECTROCHIMICA ACTA PART B-ATOMIC SPECTROSCOPY, 1977, 32 (7-8) :279-286
[4]   STEADY-STATE ATOMIC FLUORESCENCE RADIANCE EXPRESSIONS FOR CONTINUUM EXCITATION [J].
BOUTILIER, GD ;
BLACKBURN, MB ;
MERMET, JM ;
WEEKS, SJ ;
HARAGUCHI, H ;
WINEFORDNER, JD ;
OMENETTO, N .
APPLIED OPTICS, 1978, 17 (15) :2291-2298
[5]   OBSERVATION NOTE ON SATURATION BEHAVIOR OF THE FLUORESCENCE EXCITATION SPECTRUM OF OH IN A FLAME [J].
CIGNOLI, F ;
BENECCHI, S ;
ZIZAK, G .
APPLIED SPECTROSCOPY, 1990, 44 (01) :147-150
[6]   SINGLE-SHOT LASER-SATURATED FLUORESCENCE MEASUREMENTS - A NEW METHOD [J].
COTTEREAU, MJ .
APPLIED OPTICS, 1986, 25 (05) :744-748
[7]  
CROSLEY DR, 1980, ACS S SER, V134
[8]   PULSED RESONANCE SPECTROSCOPY APPLIED TO TURBULENT COMBUSTION FLOWS [J].
DAILY, JW .
APPLIED OPTICS, 1976, 15 (04) :955-960
[9]   SATURATION EFFECTS IN LASER-INDUCED FLUORESCENCE SPECTROSCOPY [J].
DAILY, JW .
APPLIED OPTICS, 1977, 16 (03) :568-571
[10]   SATURATION OF FLUORESCENCE IN FLAMES WITH A GAUSSIAN LASER-BEAM [J].
DAILY, JW .
APPLIED OPTICS, 1978, 17 (02) :225-229