Tunable diode-laser absorption measurements of methane at elevated temperatures

被引：90
|
作者：
Nagali, V [1 ]
Chou, SI [1 ]
Baer, DS [1 ]
Hanson, RK [1 ]
Segall, J [1 ]
机构：
[1] METROLASER,IRVINE,CA 92714
来源：
APPLIED OPTICS | 1996年 / 35卷 / 21期
关键词：
diode laser; methane; line strengths; absorption spectroscopy; gas sensors;
D O I：
10.1364/AO.35.004026
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
A diode-laser sensor system based on absorption spectroscopy techniques has been developed to monitor CH4 nonintrusively in high-temperature environments. Fundamental spectroscopic parameters, including the line strengths of the transitions in the R(6) manifold of the 2 nu(3) band near 1.646 mu m, have been determined from high-resolution absorption measurements in a heated static cell. In addition, a corrected expression for the CH4 partition function has been validated experimentally over the temperature range from 400 to 915 K. Potential applications of the diode-laser sensor system include process control, combustion measurements, and atmospheric monitoring.
引用
收藏
页码：4026 / 4032
页数：7
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