Multisensory Gas Analysis System Based on Reconstruction Attractors

Abstract

The paper describes the substance image formation based on the measurements by multisensor systems and the possibility of the development of a gas analysis device like an electronic nose. Classification of gas sensors and the need for their application for the recognition of difficult images of multicomponent air environments are considered. The image is formed based on stochastic transformations, calculations of correlation, and fractal dimensions of reconstruction attractors. The paper shows images created for substances with various structures that were received with the help of a multisensor system under fixed measurement conditions.

Research of the Influence of Marine Residual Fuel Composition on Sedimentation Due to Incompatibility

“…In the work, for ease of labeling and conducting research, the components are distributed by numbers: The group hydrocarbon composition of the samples was analyzed using actual methods, namely the SARA analysis, which is based on the separation of the petroleum products studied into saturated hydrocarbons, aromatic compounds, resins, and asphaltenes, according to their polarity and solubility (Figure 3). Analysis of the group hydrocarbon composition of fuels was carried out on the laboratory gas chromatograph "Gradient-M" with a heat conductivity detector by liquid adsorption chromatography on glass columns with a height of 30 cm and a diameter of 1.2-1.4 mm [30,31].…”

“…The essence of the method is as follows: initially, the contents of the total sediment of each component of the mixture are determined; further, the components are mixed in the required proportions, after which the value of the total sediment of the fuel mixture is determined, on the basis of which the compatibility index (CI) is calculated [35,36]. Analysis of the group hydrocarbon composition of fuels was carried out on the laboratory gas chromatograph "Gradient-M" with a heat conductivity detector by liquid adsorption chromatography on glass columns with a height of 30 cm and a diameter of 1.2-1.4 mm [30,31].…”