Continuous trace gas concentration measurement based on quartz-enhanced photoacoustic spectroscopy technique

被引：0
|
作者：
Tong, Y. [1 ]
Ma, Y. F. [1 ]
机构：
[1] Harbin Inst Technol, Natl Key Lab Sci & Technol Tunable Laser, Harbin, Heilongjiang, Peoples R China
来源：
OPTOELECTRONICS AND ADVANCED MATERIALS-RAPID COMMUNICATIONS | 2019年 / 13卷 / 1-2期
基金：
中国国家自然科学基金; 黑龙江省自然科学基金;
关键词：
Continuous gas concentration measurement; QEPAS; Harmonic detection; Absorption line locking; PPB-LEVEL DETECTION; AMPLIFIED LASER;
D O I：
暂无
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A continuous trace gas concentration measurement using quartz-enhanced photoacoustic spectroscopy technique based on harmonic detection and LabVIEW program was demonstrated in this paper. The wavelength of the laser was locked at the absorption line peak with the help of the third harmonic signal. Using a 2.33 mu m continuous wave, distributed feedback fiber-coupled diode laser, a long-term monitoring of carbon monoxide concentration for 85 s was performed to demonstrate reliable operation of the quartz-enhanced photoacoustic spectroscopy sensor.
引用
收藏
页码：51 / 55
页数：5
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