Quantitative analysis of the major components of coal ash using laser induced breakdown spectroscopy coupled with a wavelet neural network (WNN)

2016 ◽  
Vol 8 (7) ◽  
pp. 1674-1680 ◽  
Author(s):  
Jiao Wei ◽  
Juan Dong ◽  
Tianlong Zhang ◽  
Zhanmei Wang ◽  
Hua Li
Keyword(s):  
Neural Network ◽  
Quantitative Analysis ◽  
Coal Ash ◽  
Wavelet Neural Network ◽  
Laser Induced Breakdown Spectroscopy ◽  
Breakdown Spectroscopy ◽  
Laser Induced Breakdown

A laser induced breakdown spectroscopy (LIBS) technique combined with a wavelet neural network (WNN) was proposed for the quantitative analysis of the major components of coal ash.

Quantitative analysis of Fe and detection of multiple elements in the coal ash by laser-induced breakdown spectroscopy

Optik ◽  
2018 ◽  
Vol 169 ◽  
pp. 77-84 ◽  
Author(s):  
Ruosong Zhu ◽  
Yuzhu Liu ◽  
Qihang Zhang ◽  
Fengbin Zhou ◽  
Feng Jin ◽  
...  
Keyword(s):  
Quantitative Analysis ◽  
Coal Ash ◽  
Laser Induced Breakdown Spectroscopy ◽  
Breakdown Spectroscopy ◽  
Laser Induced Breakdown

Quantitative Analysis of Carbon with Laser-Induced Breakdown Spectroscopy (LIBS) Using Genetic Algorithm and Back Propagation Neural Network Models

2019 ◽  
Vol 73 (6) ◽  
pp. 678-686 ◽  
Author(s):  
Jiao He ◽  
Congyuan Pan ◽  
Yongbin Liu ◽  
Xuewei Du
Keyword(s):  
Neural Network ◽  
Genetic Algorithm ◽  
Quantitative Analysis ◽  
Emission Line ◽  
Carbon Content ◽  
Bp Neural Network ◽  
Back Propagation ◽  
Laser Induced Breakdown Spectroscopy ◽  
Breakdown Spectroscopy ◽  
Laser Induced Breakdown

Carbon content detection is an essential component of the metal-smelting and classification processes. An obstacle in carbon content detection by laser-induced breakdown spectroscopy (LIBS) of steel is the interference of carbon lines by the adjacent Fe lines. The emission line of C(I) 247.86 nm generally has higher response and transmission efficiency than the emission line of C(I) 193.09 nm, but it blends with the Fe(II) 247.86 nm line. Therefore, this study proposes a method of back propagation (BP) neural network modeling, which incorporates a genetic algorithm (GA), evaluates the method of parameter modeling and prediction based on GA to optimize the BP neural network (GA–BP), and realizes a quantitative analysis of the C(I) 247.86 nm line. The achieved root mean square error for the GA–BP model is 0.0114. The obtained linear correlation coefficient shows a significant improvement after correction, indicating that the proposed method is effective. The method is concise, easy to implement, and can be applied in the carbon content detection of steels and iron-based alloys.

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