THE STUDY OF PHYSICAL FACTORS LEVELS IN THE CONTROL TOWER SERVICE PREMISES OF CIVIL AVIATION AIRPORT

Abstract

The subject of the presented research is the processes of forming the complex of physical factors in the premises of control tower services of airfields of civil aviation. The purpose of the study is to measure the quantitative values of the most critical physical factors and provide scientifically substantiated recommendations for their control and maintenance at the standard level. In order to achieve this goal, the following tasks were determined: measurement of the industrial frequency magnetic and electric field intensity, the induction of a stationary magnetic field, the density of the energy fluxes of the electric fields, the radiofrequencies, the intensity of the electrostatic fields, and the concentration of the aerial ions of both signs in the air of the working zone. On the basis of the received data the recommendations on the management and maintenance of the standard level of measured physical factors have been developed. Research methods are instrumental measurements of the physical factors levels, calculation and graph-analytical methods. As a result of measurements of the physical factors levels in the control towers of airports, the following facts are established. The intensity of the magnetic and electric fields of the industrial frequency, the density of energy fluxes of electromagnetic radiation of radio frequencies, the stationary magnetic fields correspond to the standard level and need no correction. The air of the working area is completely deionized. This is due to the presence of abnormal levels of electrification of polymeric surfaces. This conclusion is made on the basis of the simulation of the corresponding processes and has been confirmed experimentally. It is recommended to use a specially developed ultrasonic air ionizer to improve the aeronautical composition of the air. Its advantage is the lack of the ozone and nitrogen oxides generation in the processes of corona discharges. The efficiency of the developed air ionizer has been investigated. It is shown that the ionization zone is satisfactory, additionally providing increase in relative humidity. This contributes to the reduction of surface electrification. Conclusions are made about the actual levels of physical factors. The need for the improvement of the air ion composition at the control tower services of airports has been proved and the method for its implementation is provided.