An intensity correction method combined with plasma position information for laser-induced breakdown spectroscopy

2017 ◽  
Vol 32 (12) ◽  
pp. 2371-2377 ◽  
Author(s):  
P. Zhang ◽  
L. X. Sun ◽  
H. B. Yu ◽  
P. Zeng ◽  
L. F. Qi ◽  
...  
Keyword(s):  
Spectral Data ◽  
Imaging System ◽  
Positional Information ◽  
Correction Method ◽  
Laser Induced Breakdown Spectroscopy ◽  
Position Information ◽  
Breakdown Spectroscopy ◽  
Plasma Position ◽  
Spectral Signal ◽  
Laser Induced Breakdown

The uncertainty of the spectral data is one of the most important issues for LIBS. To reduce the uncertainty, an imaging system was deployed and a model was built based on both the spectral signal and the positional information in this work.

Separation and Determination of Cr (III) and Cr (VI) in aqueous solution using laser-induced breakdown spectroscopy coupled with resin substrate preconcentration

2021 ◽  
Author(s):  
Peichao Zheng ◽  
Ning Ding ◽  
Jinmei Wang ◽  
Huaidong Zhao ◽  
Ranning Liu ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Direct Determination ◽  
Rapid Quenching ◽  
Laser Induced Breakdown Spectroscopy ◽  
Breakdown Spectroscopy ◽  
Spectral Signal ◽  
Laser Induced Breakdown ◽  
Poor Stability

The direct determination of analytes in aqueous solution using laser-induced breakdown spectroscopy (LIBS) has several difficulties, including low spectral signal, poor stability, and rapid quenching of the plasma. In this...

Spectral Signal Stability of Laser-Induced Breakdown Spectroscopy System Integrated with Micro-Imager

2019 ◽  
Vol 46 (3) ◽  
pp. 0311002
Author(s):  
王华东 Wang Huadong ◽  
付洪波 Fu Hongbo ◽  
贾军伟 Jia Junwei ◽  
周琪琪 Zhou Qiqi ◽  
倪志波 Ni Zhibo ◽  
...  
Keyword(s):  
Laser Induced Breakdown Spectroscopy ◽  
Breakdown Spectroscopy ◽  
Signal Stability ◽  
Spectral Signal ◽  
Laser Induced Breakdown ◽  
Spectroscopy System

Extraction of information from laser-induced breakdown spectroscopy spectral data by multivariate analysis

2008 ◽  
Vol 47 (31) ◽  
pp. G158 ◽  
Author(s):  
Nicole Labbé ◽  
Isabel Maya Swamidoss ◽  
Nicolas André ◽  
Madhavi Z. Martin ◽  
Timothy M. Young ◽  
...  
Keyword(s):  
Multivariate Analysis ◽  
Spectral Data ◽  
Laser Induced Breakdown Spectroscopy ◽  
Breakdown Spectroscopy ◽  
Laser Induced Breakdown

Particle Size Effect and Its Correction Method by Direct Measurement of Particle Flow with Laser-Induced Breakdown Spectroscopy

2016 ◽  
Vol 36 (12) ◽  
pp. 1214005
Author(s):  
白凯杰 Bai Kaijie ◽  
姚顺春 Yao Shunchun ◽  
陆继东 Lu Jidong ◽  
朱晓睿 Zhu Xiaorui ◽  
徐嘉隆 Xu Jialong ◽  
...  
Keyword(s):  
Particle Size ◽  
Size Effect ◽  
Direct Measurement ◽  
Particle Size Effect ◽  
Correction Method ◽  
Particle Flow ◽  
Laser Induced Breakdown Spectroscopy ◽  
Breakdown Spectroscopy ◽  
Laser Induced Breakdown

In-Situ Diagnostics of Combustion Parameters Using Laser-Induced Breakdown Spectroscopy

2005 ◽  
Author(s):  
T.-W. Lee ◽  
N. Hegde ◽  
I. Han
Keyword(s):  
Equivalence Ratio ◽  
Flame Temperature ◽  
Laser Induced Breakdown Spectroscopy ◽  
Fuel Composition ◽  
Breakdown Spectroscopy ◽  
Spectral Signal ◽  
Laser Induced Breakdown ◽  
Existing Data ◽  
Good Agreement

Laser-Induced breakdown spectroscopy is a powerful diagnostic method that can be applied to combustion systems for measurements of fuel-air ratios, fuel composition, and temperature. In this study, we specifically show the application of LIBS for in-situ flame temperature measurements at conditions up to moderately sooting conditions (equivalence ratio of 15 for methane-air flames). Comparisons with existing data obtained from thermocouple exhibit excellent agreement in weakly sooting flames and good agreement at higher equivalence ratios. The deviation at higher equivalence ratios is attributed to signal trapping due to soot and precursor species and also due to increase in hydrogen spectral signal at these conditions. These are factors that can be circumvented and do not preclude application of LIBS to highly sooting flames.

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