Absorption measurements of ambient methane with tunable diode laser

被引：29

作者：

Kan, RF ^{[1
]}

Liu, WQ ^{[1
]}

Zhang, YJ ^{[1
]}

Liu, JG ^{[1
]}

Dong, FZ ^{[1
]}

Gao, SH ^{[1
]}

Min, W ^{[1
]}

Jun, C ^{[1
]}

机构：

[1] Chinese Acad Sci, Anhui Inst Opt & Fine Mech, Hefei 230031, Peoples R China

来源：

ACTA PHYSICA SINICA | 2005年 / 54卷 / 04期

关键词：

tunable diode laser absorption spectroscopy; multiple-regression; multiple-reflection cell;

D O I：

10.7498/aps.54.1927

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Tunable diode laser absorption spectroscopy (TDLAS) is a new trace gas detective method developed with the combination of a diode laser source and a long absorption path. It has the significant advantage not only in sensitivity but also in rapidity of response. The concentration of the ambient methane has been measured using a TDLAS system developed in the laboratory. The system has some advantages, such as sensitivity, low detective limit (below 0.087 mg/m(3)) and rapidity of response, and also it is easy to be integrated to a portable apparatus to monitor the methane concentration in the atmosphere.

引用

页码：1927 / 1930

页数：4

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