Document Type : Primary Research paper
Doctor of Technical Sciences, Professor, Tashkent Institute of Irrigation and Agricultural Mechanization Engineers100000,Tashkent,Uzbekistan
Researcher, Tashkent Institute of Irrigation and Agricultural Mechanization Engineers 100000, Tashkent, Uzbekistan
3Candidate of Technical Sciences, ProfessorTashkent Institute of Irrigation and Agricultural Mechanization Engineers100000,Tashkent,Uzbekistan,
Candidate of Technical Sciences, Associate Professor, Tashkent Institute of Irrigation and Agricultural Mechanization Engineers100000,Tashkent,Uzbekistan,
Doctor of Technical Sciences, ProfessorTashkent State Technical University,
The article considers the analysis of a high-frequency humidity meter based on the dielcometric method applied to bulk materials on the example of grain. A capacitive method is described where the controlled product is considered as a dielectric filling the converter, and an equivalent circuit of the converter is generalized, which can be represented as an electrical circuit.
The complex permittivity of a nonpolar solid dielectric is analyzed, it is determined by the complex polarizability, and the frequency dependence of the permittivity is determined by the frequency dependencies of the real and imaginary parts of the electronic and ionic polarization, where the metrological and information optimization of the measuring device is described, which reduces to the best allocation of the useful signal.
As a result of the application of the substitution scheme, certain features of the humidity conversion of the output signal of a dielcometric high-frequency primary converter arise, which determines a wide, practical continuous spectrum of relaxation time covering the corresponding measurement range.