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Registration Number

0219U100232, 0118U001932 , R & D reports

Title

Creation of a gas sensor based on (4x4) matrix nanopowders cells with an algorithm of analyzing their luminescence for the gas mixtures registration

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Head

Popovych Dmytro I., Доктор фізико-математичних наук

Registration Date

31-01-2019

Organization

Instytut pryklаdnykh problem mekhаniky i mаtemаtyky im. Ya.S. Pidstryhаchа NAN Ukrаiny

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The object of the research is the processes of functioning of the gas sensor based on nanopowder metal oxide materials. The objective of the study is to improve the design and elemental base of the constructed gas sensor system based on nanopowder materials and to create an algorithm and a specialized program for analyzing the glow of sensor cells in gases for the purpose of gas mixtures analysis. Methods of research: theoretical and experimental methods of optical and structural research. The processes of the formation of surface adsorption electron states for nanopowder oxide materials and "core-shell" structures on their basis are established. The character and patterns of luminescence of nanopowder materials in gases at different levels of excitation are revealed. The optimal luminescent gas-sensitive materials (initial ZnO and ZnO doped with impurities Mg, Pt, Cu, Ge, In, Si, Ni, Sn, and also the complex metal oxides ZnSiO4:Mn, ZnTiO3, ZnGa2O4, ZnGa2O4:Mn, KGa5O8:Mn, ZnGdO3:Eu) were selected to build a multielement (4x4) gas sensory matrix. The design and element base (UV source of excitation with variable wavelengths of luminescence, systems for recording and processing signals) of the gas sensory system was improved. The algorithm for the gas component recognition program and their mixtures was created. The cycle of work on approbation of the multichannel gas sensor system in the production conditions of PAT "ISKRA" was carried out and its capacity for determining the composition of gas components in light sources and monitoring of the production environment was determined. Results of the work will be used at PAT "ISKRA" (Lviv) for the analysis of the composition of gases in the light sources.

Product Description

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2020-04-02