Browsing 22nd International Conference “Electromagnetic Disturbances EMD’2012” by Issue Date
Now showing items 1-20 of 35
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The analysis of the influence of adjacent radio stations positions on total electromagnetic field intensity observed near the projected BS
(22nd International Conference “Electromagnetic Disturbances EMD’2012”, 2012)Development of new cellular networks and introduction of new base stations should conform to regulatory documents, regulating the amount of total electromagnetic field intensity. The estimation of total electromagnetic ... -
Plasma turbulence monitoring by means of low-frequency noise satellite measurements
(22nd International Conference “Electromagnetic Disturbances EMD’2012”, 2012)The natural, very low-frequency (VLF) noise emissions are generally looked upon as radio interference. It is incorrect. In fact, these are an effective means for diagnostics and study of dynamic environment. The years-long, ... -
Modelling of coaxial cable behavior in EMI measurement
(22nd International Conference “Electromagnetic Disturbances EMD’2012”, 2012)The most problematic parts of tested equipment at EMI measurement are connected cables, which may be of different types. This paper deals with investigation of coaxial cable behavior. Analysis is based on numerical modeling. ... -
Separation of traction and non-traction power consumption by means of modeling
(22nd International Conference “Electromagnetic Disturbances EMD’2012”, 2012)Modeling makes it possible to isolate the traction consumption from other energy consumers. The paper deals with model creation, finding values of the voltage unbalance factor and comparison of modeling results with measured data. -
Stationary regime model of asymmetrical line
(22nd International Conference “Electromagnetic Disturbances EMD’2012”, 2012)After occurrence of circuit in any place of a power ldinises,y ma mcoemtripcuatla tisohnoarlt scheme is augmented with an additional node. Such changes in the scheme complicate the structure of the algorithm. This paper ... -
Current situation in the frequency range from 2 to 150 kHz with regard to electromagnetic compatibility
(22nd International Conference “Electromagnetic Disturbances EMD’2012”, 2012)The frequency range from 2 to 150 kHz represents a relative gap in the sphere of electromagnetic compatibility as far as the standardization related to compatibility levels, emission limits and immunity levels is concerned. ... -
Creation of system of fields in the primary transducer of NMR-flowmeter
(22nd International Conference “Electromagnetic Disturbances EMD’2012”, 2012)The article is devoted to the problems of constructing label NMR consumption indicators of the temporary phylum. The article considers the major theoretical and practical issues which were the basis for constructing the ... -
Intermediate frequency noise in and from electrical power network in modern working places
(22nd International Conference “Electromagnetic Disturbances EMD’2012”, 2012)This study presents the measurement results of high frequency noise in mains electrical system in workplaces. Measurements were taken both directly connected to the mains power network and from inside the facilities by ... -
Technical aspects of electricity meters immunity tests against continuous HF disturbance
(22nd International Conference “Electromagnetic Disturbances EMD’2012”, 2012)The paper is oriented to immunity testing of power meters with pulse output against continuous high frequency (HF) disturbance according to technical standards EN 61000-4-3 and EN 61000-4-6. By this testing it is a problem ... -
Experimental study of spectrum sensing algorithm with low cost SDR
(22nd International Conference “Electromagnetic Disturbances EMD’2012”, 2012)Development of the efficient algorithm for the spectrum sensor for cognitive radio is slowed by the lack of experiments within a real environment. In this paper we suggest to use a low cost software defined radio (SDR) ... -
Computer aided investigation of magnetic fields induced by CFL electronic ballasts
(22nd International Conference “Electromagnetic Disturbances EMD’2012”, 2012)The investigation results of magnetic fields induced by compact fluorescent lamp electronic ballasts are presented. For the investigation the high definition audio system of portable personal computer and spoafctkwaagree ... -
Improving the shielding effectiveness of a metallic enclosure with aperture under electromagnetic pulse
(22nd International Conference “Electromagnetic Disturbances EMD’2012”, 2012)An efficient and practical method to enhance the shielding effectiveness of a rectangular enclosure with aperture against electromagnetic pulse (EMP) is presented. In this paper an extra aperture as a matched load instead ... -
Evaluation of meteorological radar antenna radiation
(22nd International Conference “Electromagnetic Disturbances EMD’2012”, 2012)The object of this paper is evaluation of antenna electromagnetic radiation results of a new meteorological radar, which planned to be installed near to Vilnius. The results must be compared with permitted level according ... -
Time domain assessment of electromagnetic disturbances due to artificial ESD in the presence of field and current sensors
(22nd International Conference “Electromagnetic Disturbances EMD’2012”, 2012)According to EN 61000-4-2 standard, for indirect discharge immunity testing, horizontal coupling plane is used in combination with contact discharge technique to increase repeatability of test result. By this test the ... -
Voltage surges at the power supply inputs of devices protected by metal-oxide surge arresters
(22nd International Conference “Electromagnetic Disturbances EMD’2012”, 2012)In low-voltage power installation with systems of surge protective devices no always failure-free working of equipment is assured. Estimating effectiveness of protection against overvoltages, phenomenon in simple circuit ... -
Overvoltages in low-voltage power installation with multistep system of surge protective devices
(22nd International Conference “Electromagnetic Disturbances EMD’2012”, 2012)Estimating effectiveness of protection against voltage and current surges, phenomenon in low-voltage power installations in buildings with multistep systems of surge protective devices were analyzed. Investigations’ results ... -
Distributed impedance as terminating load at GTEM cell
(22nd International Conference “Electromagnetic Disturbances EMD’2012”, 2012)This paper deals with possible improvements of GTEM cell parameters to obtain such parameters of the electromagnetic (EM) field that allow the use of GTEM cell for metrological purposes, mainly for calibration of sensors ... -
Multiconductor microstrip line modelling using FDTD method
(22nd International Conference “Electromagnetic Disturbances EMD’2012”, 2012)Multiconductor microstrip lines (MML) are broadly used in various microwave devices. Signal propagation speed along each conductor of the infinite MML is the same and characteristic impedances of each conductor are the ... -
Automated synthesis method for inhomogeneous delay systems using artificial neural networks
(22nd International Conference “Electromagnetic Disturbances EMD’2012”, 2012)All new microwave devices, including delay systems, are designed by using computer-aided design systems which are managed by specialized software packages. Automated simulation of microwave devices using analytical and ... -
Quasi-TEM analysis of coupled microstrip lines on multilayered dielectric
(22nd International Conference “Electromagnetic Disturbances EMD’2012”, 2012)Coupled microstrip lines (CMLs) are widely used for signal transmission as well as models for various microwave devices. In attempt to minimize physical dimensions of CMLs, these lines are made three dimensional using ...