High-precision isotopic ratio measurement system for methane (12CH3D/12CH4,13CH4/12CH4) by using near-infrared diode laser absorption spectroscopy

2002 ◽  
Vol 58 (12) ◽  
pp. 2699-2707 ◽  
Author(s):  
K. Yamamoto ◽  
N. Yoshida
Keyword(s):  
Diode Laser ◽  
High Precision ◽  
Absorption Spectroscopy ◽  
Measurement System ◽  
Near Infrared ◽  
Isotopic Ratio ◽  
Laser Absorption Spectroscopy ◽  
Ratio Measurement ◽  
Laser Absorption ◽  
Diode Laser Absorption

scholarly journals Mathematical Methods and Algorithms for Improving Near-Infrared Tunable Diode-Laser Absorption Spectroscopy

Sensors ◽  
2018 ◽  
Vol 18 (12) ◽  
pp. 4295 ◽  
Author(s):  
Tianyu Zhang ◽  
Jiawen Kang ◽  
Dezhuang Meng ◽  
Hongwei Wang ◽  
Zhengming Mu ◽  
...  
Keyword(s):  
Diode Laser ◽  
Absorption Spectroscopy ◽  
Near Infrared ◽  
Tunable Diode Laser ◽  
Molecular Absorption ◽  
Laser Absorption Spectroscopy ◽  
Mathematical Methods ◽  
Laser Absorption ◽  
Optical Paths ◽  
Diode Laser Absorption

Tunable diode laser absorption spectroscopy technology (TDLAS) has been widely applied in gaseous component analysis based on gas molecular absorption spectroscopy. When dealing with molecular absorption signals, the desired signal is usually interfered by various noises from electronic components and optical paths. This paper introduces TDLAS-specific signal processing issues and summarizes effective algorithms so solve these.

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