Sledování koncentrace oxidu uhličitého v porézních materiálech

Abstract

The diploma thesis deals with the monitoring of carbon dioxide concentration in porous materials using a method based on gas absorption spectroscopy in a scattering environment called GASMAS. The aim of this work is to effectively monitor carbon dioxide concentrations in these materials even at extremely low signal-to-noise ratio (SNR). The work is designed in two main parts. The theoretical part describes the properties of the porous materials, the basic components and principles of the measurement apparatus and the application of the GASMAS method itself. The experimental part of the thesis focuses on the description of the actual experimental setup, which was constructed using a 3D printed GASMAS cuvette. The spectral lines of molecular carbon dioxide at wavenumbers 6359,5 cm-1 – 6364 cm-1 were selected for analysis and investigated by the GASMAS method using wavelength modulation spectroscopy. Finally, the results of the experimental measurements are presented.