A.A. Soshnikov, E.V. Titov, I.E. Migalyov
I.I. Polsunov Altai State Technical University, prosp. Lenina, 46, Barnaul, 656038, Russian Federation
Abstract. To estimate an electromagnetic environment state at the objects of an agricultural complex with electromagnetic radiation (EMR) sources, one could use so-called danger image, i.e. a map of allowed staying time at various zones of the modeled space. The danger image is a result of a limited number of measurements near the EMR sources, subsequent modeling of electromagnetic field (EMF) and conversion of nodal scalar values of electric and magnetic fields or energy flow density into the nodal values of allowed staying time in the danger zones. So-called point danger picture is presented by colored areas corresponding to the numeric values of allowed staying time. The point danger picture is convenient to use under non-industrial conditions. So-called cylindrical danger picture, which is represented by a spatial aggregation of cylindrical zones of predefined radius each representing a single value of allowed staying time, helps to take into account work zones at the industrial space. The purpose of the research was the systematization of the methods of allowed staying time calculation in various zones of examined space in presence of EMF influence (including combined EMF influence) to create EMR danger picture. The recommended method of calculating the allowed staying time takes into account the methods described in Russian Sanitary Norms and Rules and is based on the results of previous biological studies, and it considers EMF components on the frequency of 50 Hz and at the frequency ranges of 10 kHz-30 kHz and 30 kHz-300 GHz. The article considers two ways of combining the cylindrical danger image based on combined EMF influence: mechanical picture overlaying when zones of higher danger rating completely override zones of lower danger rating and determining of areas of cylindrical zones intersection taking into account an amplification effect of complex EMF influence. The proposed solution allows to calculate the allowed staying time in EMF of various frequencies and intensity, including the calculations taking into account an amplification effect of combined influence of multiple EMR sources, and to produce the EMR danger image.
Keywords: electrotechnology, electromagnetic radiation, allowed stay time, danger images.
Author Details: A.A. Soshnikov, D. Sc. (Tech.), prof.; E.V. Titov, Cand. Sc. (Tech.), assoc. prof. (e-mail: Этот адрес электронной почты защищён от спам-ботов. У вас должен быть включен JavaScript для просмотра.); I.E. Migalyov, post graduate student.
For citation: Soshnikov A.A., Titov E.V., Migalyov I.E. Estimation of Danger of Electromagnetic Radiation in Agricultural Technological Processes Taking into Account the Possibility of Combined Influence. Dostizheniya nauki i tekhniki APK. 2017. Vol. 31. No 3. Pp. 72-75 (in Russ.).