In this paper, a square coil system similar to the Merritt four coil system is investigated. This system is used for a biomagnetic experiment at the laboratory at the Department of Biology, Faculty of Sciences, University of Novi Sad. For the experiment, it is necessary that the magnetic field inside the coils be uniform. Therefore, distribution of the magnetic flux density inside the coil system is considered. For this system, magnetic flux density produced by sinusoidal current through the coils is calculated and then uniformity of the magnetic field inside the coils is investigated. Calculated magnetic flux density is compared to the measured magnetic flux density obtained experimentally at the laboratory. .

Substantial effort has been made to employ wireless sensor network and Internet technologies for environmental and habitat protection. Several monitoring systems are designed to collect data regarding temperature, humidity, pressure and some other environmental parameters, amongst which recently there is the exposure to electromagnetic field. In this paper, some basic features of the multiband sensors that are incorporated into the Serbian electromagnetic field monitoring network - SEMONT are presented. The SEMONT information network is designed and aimed for the remote, long-term, 24 hours a day, permanent broadband monitoring of the electromagnetic field in the environment.

Construction parameters of a medium voltage (MV) cable joint were examined in order to reduce the electric field magnitude inside the joint. The joint was covered with a heat shrinkable tube made of two or three layers. The permittivity of the layers was varied. The termination angle of the cable dielectric was also considered.

This paper uses multi conductor based method (MCM) for numerical estimation of magnetic field cancellation around balanced three phase power conductors introduced by aluminum plates. Aluminum was identified as a suitable shielding material for moderate field reduction due to its low cost and satisfactory shielding performance.

Densely populated areas are usually extensively exposed to the emission of electromagnetic fields (EMFs) that is primarily caused due to extensive use of wireless telecommunication technologies, particularly those providing mobile phone communication services. Consequently, observation and control of EMF levels in human surroundings have great importance in terms of human health and environmental protection. Particular efforts have to be devoted to EMF investigation in highly sensitive areas, where people can stay for quite long periods, such as university campuses. This paper brings the results of 2023 EMF monitoring campaign, performed over the University of Novi Sad campus for the third time, comparing them with EMF results obtained in previous 2012 and 2018 campaigns. Having in mind the emergence of new 4G Long Term Evolution (LTE) base stations in the campus, during 2022, a special focus of the 2023 campaign was on the inevitable increase of field levels, because of the contribution of 2G/3G/4G mobile communication technologies to human EMF exposure. Despite the expected increase of the field levels, obtained values were still significantly lower than the minimal reference levels, prescribed by the Serbian legislation.

An estimation procedure of the public’s exposure to the low-frequency magnetic field generated by overhead power lines, according to the international standards, implies measurement and an extrapolation. It is necessary to measure both the magnetic field around the lines and the current in the lines simultaneously. The extrapolation procedure implies the calculation of the maximum magneticfield that will occur when the line current achieves its maximum. The calculation relies on a proportion between the current in the power line and the magnetic field around the power line, which is valid only when the currents are balanced. Unfortunately, the standards do not cover the unbalanced cases. The relation between the current unbalance and magnetic field could improve the estimationprocedure. In the literature, several different definitions of the current unbalance could be found. In this paper, a comparison of three different definitions of current unbalance and their relation to thedeviation of a magnetic field are considered. The magnetic field is calculated in the vicinity of the bus bar. The same procedure could also be applied around overhead power lines. The definitions for the current unbalance used in this paper are derived from the existing definitions of the voltage unbalance. Only one of these three definitions considers phase unbalance. The relationships between current unbalance and the maximum deviation of the magnetic field are found to be proportional.