Tunable diode-laser absorption measurements of methane at elevated temperatures

被引：94

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

页码：4026 / 4032

页数：7

共 20 条

[1] ULTRASENSITIVE DUAL-BEAM ABSORPTION AND GAIN SPECTROSCOPY - APPLICATIONS FOR NEAR-INFRARED AND VISIBLE DIODE-LASER SENSORS [J].