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Measurement of Grain and Grain Products Moisture Content by Ultrahigh-Frequency Method: Influence of Grain Density Inhomogeneity on the Mass Ratio of Moisture

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Measurement Techniques Aims and scope

The article describes various methods for measuring the moisture content of bulk materials (grain and grain products) used at grain processing enterprises, including methods using such an indicator of grain quality as the mass ratio of moisture. It is shown that it is preferable to use the method of ultrahigh-frequency moisture content measurement. A functional diagram of an installation for measuring the moisture content of grain and grain products by the ultrahigh-frequency method is presented. The installation can be used in the technological process of grain materials production. The influence of grain density inhomogeneity on the informative parameter (moisture content) for the ultrahigh-frequency method of moisture content measurement has been analyzed taking into account the complexity of mathematical simulation of moisture content control in the technological process of grain materials production. The results of experimental measurements of moisture content in laboratory and production conditions of a grain processing enterprise are given; an analysis of measurement errors is presented. It is shown that the most significant contribution in amplitude measurements is made by the moisture distribution inhomogeneity over bond forms and sample density inhomogeneity; in phase measurements, it is the change in density, and the moisture content measurement error decreases with increasing bulk density. Based on a comparative analysis of grain moisture content measurement errors, it has been established that the use of a multi-parameter method reduces the indicated error compared to the one-parameter method error, which is explained by minimizing the influence of various interfering factors. The expediency of using a multi-parameter method for measuring the mass ratio of grain moisture content at grain processing plants and enterprises is substantiated.

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Authors and Affiliations

  1. Republican Design Institute “UzEngineering”, Tashkent, Republic of Uzbekistan

    G. I. Ikramov

  2. National Research University “Tashkent Institute of Irrigation and Agricultural Mechanization Engineers”, Tashkent, Republic of Uzbekistan

    P. I. Kalandarov

Authors
  1. G. I. Ikramov
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  2. P. I. Kalandarov
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Correspondence to G. I. Ikramov.

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Translated from Izmeritel'naya Tekhnika, No. 9, pp. 71–76, September, 2022.

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Ikramov, G.I., Kalandarov, P.I. Measurement of Grain and Grain Products Moisture Content by Ultrahigh-Frequency Method: Influence of Grain Density Inhomogeneity on the Mass Ratio of Moisture. Meas Tech 65, 695–701 (2022). https://doi.org/10.1007/s11018-023-02141-9

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  • DOI: https://doi.org/10.1007/s11018-023-02141-9

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