Study of agricultural material frequency response in order to ensure safety of technologies using super high frequencies
2020
Logacheva, E., Stavropol State Agrarian Univ. (Russian Federation) | Zhdanov, V., Stavropol State Agrarian Univ. (Russian Federation) | Ivashina, A., Stavropol State Agrarian Univ. (Russian Federation) | Yarosh, V., Stavropol State Agrarian Univ. (Russian Federation)
The article raises the problem of the safe implementation of new technologies using super high frequency electromagnetic fields. Growing global population requires more food production. Traditional crop cultivation technologies do not solve this problem. Modern agricultural production has been undergoing qualitative changes. New technologies using various electro physical factors have often been proposed to introduce in recent decades. One of these proposals is the use of super high frequency electromagnetic fields. Technologies are recommended for implementation, but implementation in real agriculture is not observed. The reason is that safe working conditions for the person managing this production have not been developed. The operation of a SHF installation cannot be narrowed down only to compliance with the rules for maintenance of electrical equipment. The proposed technologies require additions to the existing labour safety requirements. To this end, a hazard assessment of agricultural SHF technologies has been carried out. The study has been carried out in two directions: energy flux density at the workplace of the operator serving the installation for pre-sowing seed treatment; reflection coefficients of various agricultural materials. The analysis of the proposed SHF technologies has made it possible to present the SHF technologies classification, which has shown that the most dangerous option with an open radiating device is proposed for use in agriculture. The established frequency dependences of various agricultural materials at different sample moisture have shown a significant decrease in reflection coefficients at the lowest moisture. Therefore, from a safety standpoint, it is most preferable to process materials with a SHF electromagnetic field in combination with drying.
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