Detection of gases by correlation spectroscopy

被引：41
|
作者：
Dakin, JP [1 ]
Gunning, MJ [1 ]
Chambers, P [1 ]
Xin, ZJ [1 ]
机构：
[1] Univ Southampton, Optoelect Res Ctr, Southampton SO17 1BJ, Hants, England
来源：
SENSORS AND ACTUATORS B-CHEMICAL | 2003年 / 90卷 / 1-3期
关键词：
correlation spectroscopy; optical absorption; gas detection; oxygen; carbon monoxide; carbon dioxide;
D O I：
10.1016/S0925-4005(03)00043-1
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
This paper describes the detection of various common gases by means of correlation spectroscopy, employing a complementary-source-modulation (CoSM) approach based on compact light-emitting diode (LED) sources. Theoretical results for the quantitative detection of O-2, CO, and CO2 by this CoSM method are presented, using, as their basis, spectral absorption data from the Hitran database. In demonstrating the proposed detection principle, new experimental results for the detection of O-2 in air are presented, with the use of practical low-cost LED sources. (C) 2003 Elsevier Science B.V. All rights reserved.
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页码：124 / 131
页数：8
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