Sensitive, multipoint gas detection using TDM and wavelength modulation spectroscopy

被引：28

作者：

Ho, HL ^{[1
]}

Jin, W ^{[1
]}

Demokan, MS ^{[1
]}

机构：

[1] Hong Kong Polytech Univ, Dept Elect Engn, Kowloon, Hong Kong, Peoples R China

来源：

ELECTRONICS LETTERS | 2000年 / 36卷 / 14期

关键词：

D O I：

10.1049/el:20000886

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：

The authors report on the use of time division multiplexing coupled with wavelength modulation of an external cavity laser for sensitive, multipoint gas detection. A three-sensor ladder-topology acetylene system is experimentally demonstrated with a detection sensitivity of 150 ppm (25 mm gas cells) for a time constant of 300 ms and -30 dB crosstalk between the sensors.

引用

页码：1191 / 1193

页数：3

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