A mathematical model of the high frequency moisture meter for cottonseeds based on the displacements schemes-Reference-Cited by-同舟云学术

A mathematical model of the high frequency moisture meter for cottonseeds based on the displacements schemes

Published:2020 Issue:3 Volume: Page:53-70
ISSN:0132-4713
Container-title:Metrologiya
language:
Short-container-title:Metrologiya

Author:

Nasirov Tulkun Z.¹,Ismatullayev Patxulla R.¹,Jabborov Hamdam Sh.¹

Affiliation:

1. Tashkent State Technical University

Abstract

An overview of high-frequency methods for measuring and controlling humidity of various materials is given. Humidity of cotton seeds is the main factor affecting their qualitative and quantitative indicators in the technological processes of storage, transportation, processing. Therefore, measuring the humidity of cotton seeds directly in the technological process is an urgent task. The mathematic model of the high frequency moisture meter for cotton grains has been constructed, in which the studying material as a complex dielectric installing in an electric field is represented. The displacement scheme which includes capacity between electrodes and also capacities and resistors corresponding to different polarization types has been presented. 4 variants of displacement schemes which describe approximately the dependence of angle tangency of dielectric losses on the electromagnet field frequency using in the measuring device have been considered. It has been shown that the simplest two elements RC-scheme connected parallel corresponds to the closest real description of measuring object in frequencies range from 105 up to 108 Hertz.

Publisher

FSUE VNIIMS All-Russian Research Institute of Metrological Service

Subject

General Earth and Planetary Sciences,Water Science and Technology,Geography, Planning and Development

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