A single-mode all-fiber QEPAS sensor

被引：0
|
作者：
Huang, Gang [1 ,2 ,3 ]
He, Ying [4 ]
Xu, Zhuo [3 ]
机构：
[1] Xi Jiaotong Univ, Elect Mat Res Lab, Key Lab, Minist Educ, Xian 710049, Peoples R China
[2] Xi Jiaotong Univ, Int Ctr Dielect Res, Xian 710049, Peoples R China
[3] China Astronaut Res & Training Ctr, Natl Key Lab Human Factors Engn, Beijing 10094, Peoples R China
[4] Harbin Inst Technol, Natl Key Lab Sci & Technol Tunable Laser, Harbin 150001, Peoples R China
来源：
OPTOELECTRONICS AND ADVANCED MATERIALS-RAPID COMMUNICATIONS | 2016年 / 10卷 / 11-12期
关键词：
QEPAS; Quartz tuning fork; Fiber; H2O quantification; PPB-LEVEL DETECTION;
D O I：
暂无
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A quartz-enhanced photoacoustic spectroscopy (QEPAS) system based on common single-mode fiber, which has more stable and flexible configuration, has been developed. A 1.395 pm continuous wave (CW), distributed feedback diode laser was used as the excitation source and the H2O was selected as the target analysis. Quartz tuning fork (QTF) with a resonance frequency of 30.72 kHz was employed as the acoustic transducer. The location of laser between the QTF prongs in the vertical direction has been investigated. After optimizing the modulation depth, a minimum detection limit of 104.6 ppm was achieved.
引用
收藏
页码：844 / 846
页数：3
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