Near-infrared methane sensor based on a distributed feedback laser

doi:10.1080/00387010.2019.1569063

CIOMP OpenIR

	Near-infrared methane sensor based on a distributed feedback laser
	J.N.Wang; B.Li; G.Y.Lin; Q.J.Ma; S.R.Wang; M.X.Piao
	2019
发表期刊	Spectroscopy Letters
ISSN	0038-7010
卷号	52 期号:2 页码:113-120
摘要	In this article, a near-infrared methane detection system using tunable diode laser absorption spectroscopy technology was designed and implemented. The distributed feedback laser was driven by a self-developed temperature and current controller to allow scanning the selected absorption wavelength at 1654nm. Laser temperature fluctuation was lower than 0.01%, and the output emission wavelength was linear and stable. The emitted beam passed a reflective gas chamber and was received by the Indium Gallium Arsenide photodiode detector. Through a data acquisition card, a digital lock-in amplifier was developed to extract the second harmonics with real-time monitoring and adjustment. Based on Allan deviation analysis, the limit of detection was about 48ppm with a path length of 30cm, at an integration time of 6s. The experimental results revealed a maximum detection error of less than 3% at a gas concentration higher than 100ppm. The fluctuations rates in long-term (9hr) stability measurements for 1x10(3)ppm and 1x10(4)ppm methane samples were 0.8% and 0.48%, respectively, indicating good stability for the sensor. In the control module design, compared with previous reports on methane detection systems, the current system uses a self-developed temperature controller, a current driver and a signal processor, to allow real-time display and adjustments. The potential for adjustable wavelength scanning is available for multi-gas detection based on a single detection system
关键词	Absorption spectrum,distributed-feedback,lasers,interband cascade laser,absorption-spectroscopy,gas sensor,diode-laser,Spectroscopy
DOI	10.1080/00387010.2019.1569063
收录类别	SCI
语种	英语
引用统计
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/63009
专题	中国科学院长春光学精密机械与物理研究所
推荐引用方式 GB/T 7714	J.N.Wang,B.Li,G.Y.Lin,et al. Near-infrared methane sensor based on a distributed feedback laser[J]. Spectroscopy Letters,2019,52(2):113-120.
APA	J.N.Wang,B.Li,G.Y.Lin,Q.J.Ma,S.R.Wang,&M.X.Piao.(2019).Near-infrared methane sensor based on a distributed feedback laser.Spectroscopy Letters,52(2),113-120.
MLA	J.N.Wang,et al."Near-infrared methane sensor based on a distributed feedback laser".Spectroscopy Letters 52.2(2019):113-120.

条目包含的文件		下载所有文件
文件名称/大小	文献类型	版本类型	开放类型	使用许可
Near infrared methan（1415KB）	期刊论文	出版稿	开放获取	CC BY-NC-SA	浏览下载