A high-sensitivity, near-infrared tunable-diode-laser-based photoacoustic water-vapour-detection system for automated operation

1999 ◽  
Vol 10 (11) ◽  
pp. 999-1003 ◽  
Author(s):  
Zoltán Bozóki ◽  
János Sneider ◽  
Zoltán Gingl ◽  
Árpád Mohácsi ◽  
Miklós Szakáll ◽  
...  
Keyword(s):  
Diode Laser ◽  
Water Vapour ◽  
Near Infrared ◽  
Detection System ◽  
High Sensitivity ◽  
Tunable Diode Laser

A near-infrared acetylene detection system based on a 1.534 μm tunable diode laser and a miniature gas chamber

2016 ◽  
Vol 75 ◽  
pp. 93-99 ◽  
Author(s):  
Qixin He ◽  
Chuantao Zheng ◽  
Huifang Liu ◽  
Bin Li ◽  
Yiding Wang ◽  
...  
Keyword(s):  
Diode Laser ◽  
Near Infrared ◽  
Detection System ◽  
Tunable Diode Laser ◽  
Gas Chamber

In-situ CO measurement of gas and oil combustion flame using near infrared tunable diode laser with direct and modulated absorption signals

2013 ◽  
Vol 306 ◽  
pp. 99-105 ◽  
Author(s):  
Qun-xing Huang ◽  
Fei Wang ◽  
Hai-dan Zhang ◽  
Jian-hua Yan ◽  
Ming-jiang Ni ◽  
...  
Keyword(s):  
Diode Laser ◽  
Near Infrared ◽  
Tunable Diode Laser ◽  
Combustion Flame

Line-shape study of water vapour by tunable diode laser spectrometer in the 822?832�nm wavelength region

2004 ◽  
Vol 79 (7) ◽  
pp. 915-921 ◽  
Author(s):  
A. Ray ◽  
A. Bandyopadhyay ◽  
B. Ray ◽  
D. Biswas ◽  
P.N. Ghosh
Keyword(s):  
Diode Laser ◽  
Water Vapour ◽  
Line Shape ◽  
Wavelength Region ◽  
Tunable Diode Laser ◽  
Laser Spectrometer ◽  
Diode Laser Spectrometer

Optimization of Harmonic Detection System for Tunable Diode Laser Absorption Spectroscopy Based on Mathematical Algorithm

2018 ◽  
Vol 13 (10) ◽  
pp. 1533-1542 ◽  
Author(s):  
Danni Shen ◽  
Anji Yu
Keyword(s):  
Diode Laser ◽  
Absorption Spectroscopy ◽  
Detection System ◽  
Rapid Development ◽  
Noise Removal ◽  
Tunable Diode Laser ◽  
Gas Detection ◽  
Laser Absorption Spectroscopy ◽  
Laser Absorption ◽  
Diode Laser Absorption

Traditional gas detection technology has a certain degree of defects in all aspects, and it has not been able to adapt to the rapid development trend. Tunable diode laser absorption spectroscopy (TDLAS) technology has some good performance and is gradually being used in various industries. First, a gas detection instrument is designed. Then, based on subsequent data processing techniques, a wavelet transform algorithm is proposed, and the noise removal and baseline correction functions of the detection system are implemented. The results show that the proposed method has good removal effect on the inherent noise of the system and high efficiency. During the selection of the absorption line, the selected line of some gases cannot avoid the interference of adjacent peaks. Therefore, a mathematical analysis method of differential fold back algorithm is proposed. The absorption peak shape is squeezed by the method of adjacent phase subtraction and displacement superposition. The problem is solved well, and the accuracy of concentration measurement of some gases is effectively improved.

scholarly journals Development of a Photoacoustic Gas Detection System with a Near-Infrared Diode Laser.

2002 ◽  
Vol 30 (4) ◽  
pp. 193-197
Author(s):  
Shigeki TOKITA ◽  
Hideaki NIKI ◽  
Iwao KITAZIMA
Keyword(s):  
Diode Laser ◽  
Near Infrared ◽  
Detection System ◽  
Gas Detection
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