Quantitative Detection of Quartz Sandstone SiO<sub>2</sub> Grade Using Polarized Infrared Absorption Spectroscopy with Convolutional Neural Network Model

<div>Absorption spectra by first-order derivative.</div>

Journal of Spectroscopy

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Figure 4: Quantitative Detection of Quartz Sandstone SiO<sub>2</sub> Grade Using Polarized Infrared Absorption Spectroscopy with Convolutional Neural Network Model 

Figure 4 | Quantitative Detection of Quartz Sandstone SiO2 Grade Using Polarized Infrared Absorption Spectroscopy with Convolutional Neural Network Model 