Abstract
The results of tests of a new fiber-optic probe–objective for measuring both IR diffuse-reflection spectra and other types of spectra of solids at various temperatures are presented. In comparison with the conventional devices, the new scheme for measuring diffuse-reflection spectra has such advantages as the minimum distortion of spectra by the specular and Fresnel diffuse components of the reflection from surface irregularities and the linearity of the concentration dependences. The use of a fiber-optic probe–objective provides the ability for the simultaneous analysis of the solid phase and outgoing gases with increasing temperature and calibration of the spectral methods using the thermogravimetric-analysis data. An example of monitoring the process of drying catalysts in laboratory studies when analyzing composite and other materials is used to consider the prospects for using the probe–objective.
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Original Russian Text © A.Kh. Kuptsov, I.A. Arutyunov, E.V. Zhmaeva, A.V. Kulik, 2018, published in Pribory i Tekhnika Eksperimenta, 2018, No. 4, pp. 96–105.
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Kuptsov, A.K., Arutyunov, I.A., Zhmaeva, E.V. et al. A Spectral–Thermal Bench with a Special Fiber-Optic Probe–Objective for Measuring Diffuse-Reflection Spectra. Instrum Exp Tech 61, 562–571 (2018). https://doi.org/10.1134/S0020441218040218
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DOI: https://doi.org/10.1134/S0020441218040218