Danka Antic

The AMB 8057-03 sensor node implementation in the SEMONT EMF monitoring system

The Serbian Electromagnetic Field Monitoring Network - SEMONT is based on autonomous, remote sensor nodes, capable to monitor in-situ electromagnetic field in the environment and to wirelessly communicate with the central control station, uploading/downloading data. The SEMONT information network is intended for continuous monitoring of the low and high frequency field sources, performing the assessment of daily exposure of the general population over the observed area, as well as occupational exposure, considering the latest EU directives. In this paper the potential utilization of Narda sensor node AMB 8057-03 in the SEMONT system was investigated. A number of tests have been performed, in order to determine the compliance of AMB 8057-03 with the SEMONT requirements.

The inductive sensor analysis for the energy harvesting applications

Recently, the concept of energy harvesting has started to be considered and utilized in a variety of applications. The energy of the ambient has been exploited, employing different harvesting techniques, in order to provide the inexhaustible supply for the range of electronic devices. Concerning the energy stored in the electromagnetic field, among the known and prominent harvesting approaches, the inductance assemblies have been recognized for their simplicity, reliability and easiness in the production of various forms. This paper presents the simulation framework for the inductive sensor analysis, using the partial inductance approach for performance examination. The simple, planar, rectangular geometry is analyzed, regarding the potential increase of the overall sensors inductance. The obtained results demonstrate fine agreement with previously reported findings.

The variable geometry inductors for the energy harvesting applications

The energy harvesting applications becomes omnipresent, utilizing different harvesting techniques to collect energy from ambient. Recently, the electromagnetic field energy harvesting attracted attention, with objective to provide nearly unlimited power supply, particularly for variety of the low-power electronic devices. Furthermore, the inductive assemblies have been recognized as reliable, low cost and adaptive collectors for such kind of energy. Therefore, in this preliminary research paper, the inductive sensors with variable geometry have been analyzed, regarding increase of their overall inductance, with a basic idea to try in that way to collect and store more energy from surrounding electro magnetic field. The approach of partial inductance modeling has been used for the performance analyses of those inductors.

Environmental EMF monitoring in the SEMONT system using quad-band AMB 8057/03 sensor

The Serbian electromagnetic field (EMF) monitoring network - SEMONT is a network of remote wireless sensor nodes that continuously measure EMF level in the environment, in order to assess the non-ionizing radiation exposure of the general population and perform a real-time dissemination of the assessment results to the public. This paper presents some details of implementation and results of the SEMONT EMF in-situ broadband monitoring using Narda Area Multiband AMB 8057/03 sensor, equipped with the high-frequency quad-band electric field probe EP-4B-01. The goal of the monitoring is to provide real-time measurement results, and assessment of the potential long-term exposure of the general population, regarding the reference levels provided by the Serbian legislation and recommendations of the International Commission on Non-Ionizing Radiation Protection (ICNIRP).

The COMSOL support for analysis of inductors with variable geometry

The inductive assemblies with variable geometry have recently been proposed for potential electromagnetic (EM) energy harvesting utilization. Such inductors are capable of changing their initial geometry under the influence of some external force, collecting additional magnetic flux and producing increased induced voltage. In order to evaluate performance of such inductors, regarding increase of its total inductance, as well as EM field distribution and distribution of potential along its segments, the support of the COMSOL simulation framework has been used. In this paper, the case study of simple, planar inductors, which can change geometry along z-axis, has been presented.

The ABM 8057 utilization for SEMONT's EMF monitoring in a closed room

The Serbian Electromagnetic Field Monitoring Network — SEMONT has started with test monitoring of electromagnetic field (EMF) in a closed room. In this paper, the case study of the high-frequency electric field strength monitoring is presented, utilizing Narda AMB 8057/03 monitoring station. The monitoring procedure has been simultaneously performed in frequency ranges of 100 kHz–7 GHz, GSM 900, GSM 1800 and UMTS 2100, in a closed room of largest amphitheater of the Faculty of Technical Science, University of Novi Sad. The monitoring was conducted during real daily conditions and students presence inside of the amphitheater, showing that the high-frequency electric field strength values are far below the Serbians prescribed reference levels.

The SEMONT network utilization for the low-frequency EMF monitoring

The intensive increase of the number of population in modern cities demands a highly reliable power supply, requiring power distribution systems that will accomplish this challenging task. In order to increase the reliability of consumers supply, the additional power distribution substations are commonly installed, which in time become surrounded by the expanded residential areas. In consequence, their presence increases the health concern of residents, having in mind that power substations are known sources of the low-frequency electromagnetic field (EMF). Therefore, the continuous monitoring of EMF is expected, as well as the adequate assessment of corresponding exposure of population in vicinity of such objects. In this paper, the test utilization of a modern, wireless sensors-based monitoring network, the Serbian Electromagnetic Field Monitoring Network - SEMONT, was considered for the advanced low-frequency EMF monitoring in the upcoming smart cities environment. The case study and test measurements were performed in vicinity of the power substation “NS7 - South Telep”, located in the city of Novi Sad, the Republic of Serbia, where the acquired results emerge to be far below the Serbian prescribed reference levels.