Ionel Pavel

@tuiasi.ro

Electrical measurements and electrotechnical materials/Electrical engineering Faculty
Gheorghe Asachi Techical University of Iasi

Ionel Pavel


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https://researchid.co/ionel.pavel

EDUCATION

Ph.D, Electrical engineering, Gheorghe Asachi Technical University of Iasi
Title: RESEARCH ON THE MAGNETIC FIELDS SURVEY GENERATED BY POWER SUPPLY SYSTEMS

RESEARCH INTERESTS

Electromagnetics measurements, sensors, electronics
16

Scopus Publications

Scopus Publications

  • Estimation of the Spatial and Temporal Distribution of Magnetic Fields around Overhead Power Lines—A Case Study
    Ionel Pavel, Camelia Petrescu, Valeriu David, Eduard Lunca
    Mathematics, 2023
    Due to the growing number, diversity and spreading of magnetic field sources, an increasing need to determine the field levels of human exposure has arisen. Some of the most encountered sources are the overhead power lines (OPL) and the determination of spatial and temporal variation of the magnetic fields produced by OPLs is a challenge. In this paper a hybrid method for the estimation of the temporal and spatial distribution of the magnetic flux density B caused by OPLs, based on experimental measurements and on numerical and analytical simulations, is presented. Thus, using a small number of simultaneous spot measurements correlated with a long-term survey, maps of the magnetic flux density distribution on extended areas are established, for several time instances. The proposed method is verified using two sets of different measurements and the results obtained through simulation. The difference between the estimated and simulated values of B is under 5.5%, which is considered acceptable considering that B spans over a large set of values (724 nT ÷ 1375 nT) in the location of the long-term survey procedure. The possibilities and limitations of the proposed method are discussed.
  • Monitoring of Classical and Modern Education
    Costel Donose, Cristina-Mihaela Schreiner, Ionel Pavel, Madalina Ancuta Pintilei
    2023 International Conference on Electromechanical and Energy Systems Sielmen 2023 Proceedings, 2023
    The material base within an educational process, be it classic or distance learning, contributes to the development of factors that stimulate learning, having principles defined according to the learning method chosen by students. An important role is played by teachers who must develop this material basis of learning according to principles adapted to all learners, especially in the case of online education, when teachers and students are separated. This last case grew with the advent of the COVID-19 pandemic period. Therefore, in our study we presented the two methods, classical and modern, which combined, could make it possible to teach in high schools or universities even during the pandemic. At the end of this study, an evaluation of the two methods was made and an improvement in students' results was found, increasing their interest in learning and at the same time reducing the costs of implementing laboratory works by using a small amount of equipment.
  • Video Distance Measurement Method Based on the Weighted Average of the Depth Intervals Centers
    Ionel Pavel, Codrin Donciu, Marinel Temneanu, Mihai Penciuc
    EPE 2022 Proceedings of the 2022 12th International Conference and Exposition on Electrical and Power Engineering, 2022
  • Measurement and Numerical Simulation of the Low-Frequency Electric Field Generated by an Overhead Power Line
    Eduard Lunca, Silviu Vornicu, Ionel Pavel, Mihai Andrusca
    EPE 2022 Proceedings of the 2022 12th International Conference and Exposition on Electrical and Power Engineering, 2022
  • Low frequency magnetic field survey in different areas of a hospital's environment
    Ionel Pavel, Valeriu David, Marina-Georgiana Roman, Alexandru-Marian Bordas
    EPE 2022 Proceedings of the 2022 12th International Conference and Exposition on Electrical and Power Engineering, 2022
  • LabVIEW Based Control and Monitoring of a Remote Test-Bench Experiment for Teaching Laboratories
    Ionel Pavel, Marius Branzila, Constantin Sarmasanu, Costel Donose
    Sielmen 2021 Proceedings of the 11th International Conference on Electromechanical and Energy Systems, 2021
    Recently, great efforts have been made to passing from traditional to online learning due to the COVID-19 pandemic. Regarding online learning, many concepts have been developed to use various learning methods in electrical engineering laboratories because this involves equipment that students have not access. To solve this problem, virtual instruments have been made to control and monitoring equipment from the laboratories. In this paper, we presented a solution for the development of a remote laboratory for measuring a DC motor speed. The greatest advantages of this method are the remote interaction of the students with the workbenches in classes, the shortening working time, the measured values accuracy, the automatic graph drawing, and reducing measurement errors.
  • A Method for Estimating the Magnetic Fields Generated by the Overhead Power Lines
    Valeriu David, Ionel Pavel, Eduard Lunca
    EPE 2020 Proceedings of the 2020 11th International Conference and Exposition on Electrical and Power Engineering, 2020
    In this paper we propose a new measurement method to estimate the spatial and temporal variability, namely to realize maps with magnetic induction B anywhere and anytime around overhead power line, using only two measurement instruments and a minimum number of measurements. Based on the obtained results of spot measurements and the results of an automatic survey of magnetic induction B, we estimate the profiles and the maps of magnetic fields anywhere near the line, i.e. spatial variability and anytime, i.e. temporal variability. These two sets of synchronous measurements where made with two independent instruments each of them having a measurement uncertainty below 5%. Firstly, the field profiles were determined by means of on spot measurement made at different time moments using a simple commercial instrument. Then, we adjusted these profiles, based on simultaneous and continuous determination of the time variability of B, obtained with our measurement system for automatic survey of the magnetic field. In order to make a complete characterization of the generated magnetic field, we also present, the time and frequency representations of B, a statistical processing of the results, and the profiles and maps of field when B is maximum/minimum. This is made in accordance to the field time variability (of about 8%), obtained during an hour of automatic survey of magnetic field in a single point.
  • A Survey of the Magnetic Field in a MRI Area
    Ionel Pavel, Valeriu David, Alexandru Constantin Podaru
    EPE 2018 Proceedings of the 2018 10th International Conference and Expositions on Electrical and Power Engineering, 2018
    In this paper we present the results of the magnetic field survey in the neighborhood of the magnetic resonance images (MRI) scanner. By using both commercial instruments and an automatic survey system realized by us, we try to study the temporal and spatial variability of the background magnetic field in a hospital area. The maximum values of the magnetic field were given in the Technical Room, namely 8289 nT, near the MRI scanner gradients panel. Although the magnetic field values are below 9% from the maximum admissible values by ICNIRP, there are many points from the Technical Room where the values exceed 0.4 μT, which carry health risk, especially for children.
  • A Measurement System for the Automatic Survey of the Low Frequency Magnetic Field
    Ionel Pavel, Valeriu David, Costel Donose
    EPE 2018 Proceedings of the 2018 10th International Conference and Expositions on Electrical and Power Engineering, 2018
    In this paper we present a measurement system proposed, realized and calibrated for the automatic survey of the low frequency magnetic field. The instrument has a tri-axial sensor and three channels for waveforms processing in 50 Hz – 100 kHz frequency range. The waveforms of the magnetic fields are acquired using a National Instruments card and a virtual instrument created in the LabVIEW software, and then the data are processed and stored on a portable computer. Beside spot measurements, the instrument allows automatic long term survey of the magnetic field. The measurement system was calibrated by means of a simple method based on the standard field. The uncertainty of the instrument of about 15% is adequate for automatic survey of magnetic field.
  • Analysis of the influence of the current drawn by the appliance on the close magnetic field
    Silviu Ursache, Eduard Lunca, Alexandru Salceanu, Ionel Pavel
    Acta Imeko, 2018
    <p class="Abstract">The development of technology and the corresponding increase in living standards imply the generalized use of the most diversified and sophisticated equipment, a distinct, significant category being household appliances. The frequent presence of these devices close to a person’s heart, eyes, or brain naturally gives rise to concerns about the level of the associated (low-frequency) magnetic fields. The main objective of our paper is to study the possible correspondence between the low-frequency magnetic field generated by some household appliances and their current consumption. The proposed measurement system consists of the hand-held triple axis 480826 EMF Tester manufactured by Extech Instruments and the 80i-400 Fluke clamp meter. The performed measurement methodology takes into account the operating principles of the appliance. We perform measurements for a large selection of devices (47). The measuring point for the magnetic field is set at 30 cm from the source. Finally, by applying the Biot-Savart law to the previously determined drawn current, we calculate the magnetic field. We also compare the corresponding, directly measured values and analyze them.</p>
  • Actuating and controlling electrical circuits by means of virtual instruments
    Costel Donose, Cristina-Mihaela Schreiner, Alexandru-Constantin Podaru, Ionel Pavel
    2017 11th International Conference on Electromechanical and Power Systems Sielmen 2017 Proceedings, 2017
  • Virtual monitoring of electrical circuitry
    Costei Donose, Cristina-Mihaela Schreiner, Alexandru-Constantin Podaru, Lonel Pavel
    2017 11th International Conference on Electromechanical and Power Systems Sielmen 2017 Proceedings, 2017
  • On a survey of the magnetic field in a commercial area
    22nd Imeko Tc4 International Symposium and 20th International Workshop on ADC Modelling and Testing 2017 Supporting World Development Through Electrical and Electronic Measurements, 2017
  • Study on the relationship between magnetic fields generated by home appliances and associated drawn currents
    22nd Imeko Tc4 International Symposium and 20th International Workshop on ADC Modelling and Testing 2017 Supporting World Development Through Electrical and Electronic Measurements, 2017
  • On the survey of the magnetic fields in power distribution substations
    Ionel Pavel, Valeriu David
    Proceedings of the 2016 International Conference and Exposition on Electrical and Power Engineering EPE 2016, 2016
  • Automatic long term survey of magnetic fields in residential areas. Instrumentation and measurements
    Ionut Nica, Valeriu David, Ionel Pavel, Andrei Salceanu
    Environmental Engineering and Management Journal, 2016