Design and analysis of a gas sensor based on a ring multi-wavelength fiber laser in near infrared

被引：2
|
作者：
Li, Hong [1 ]
Wang, D. N.
机构：
[1] Hubei Normal Univ, Hubei Key Lab Bioanalyt Tech, Huangshi 435002, Peoples R China
[2] Huangshi Inst Technol, Sch Mech & Elect Engn, Huangshi 435003, Peoples R China
[3] Hong Kong Polytech Univ, Dept Elect Engn, Kowloon, Hong Kong, Peoples R China
来源：
INTERNATIONAL JOURNAL OF INFRARED AND MILLIMETER WAVES | 2007年 / 28卷 / 05期
关键词：
gas sensor; the ring multi-wavelength fiber laser; multiple detecting windows; second harmonic wave method; optimal information syncretion;
D O I：
10.1007/s10762-007-9211-2
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Numerical model of a gas sensor based on the ring multi-wavelength fiber laser is discussed to detect gas such as methane (CH4), which has multi-line absorption in near infrared. The schematic of the gas sensor is given, and its detecting principle of multiple windows is demonstrated in detail. The detecting methods based on the differential method and the second harmonic wave method in the sensor are analyzed, and the optimal information syncretions are used to process the information of the detected gas. The analyzing results show the sensor has advantages over the traditional sensor, and can be expanded to detect other gas such as acetylene (C2H4).
引用
收藏
页码：403 / 412
页数：10
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