Ján MOLNÁR, Irena KOVÁČOVÁ Department of Theoretical Electrical Engineering and Electrical Measurement, Faculty of Electrical Engineering and Informatics, Technical University of Košice, Letná 9, 042 00 Košice, E-mail: [email protected] Department of Electrical Engineering, Mechatronics and Industrial Engineering, Faculty of Electrical Engineering and Informatics, Technical University of Košic...

2014 A 2-D velocity map in a cylindrical Rayleigh-Bénard flow is determined by means of a speckle photography technique. Automatic velocity measurements are performed by two different methods : (i) Isovelocity contours are drawn by spatial filtering; (ii) Local illumination by a laser beam produces Young’s fringes which are analysed by an image processing system. New methods are proposed for di...

introduction for dose measurement in megavoltage (mv) photon beams with ion chambers, the effect of volume occupied by the air cavity is not negligible. therefore, the result of measurement should be corrected with a displacement perturbation correction factor (pdis) or using an effective point of measurement (epom). the aim of this study is to calculate the epom for cylindrical ion chamber and...

Define, quantify, assess and improve are the four cornerstones of a process for continuous improvement of information and data quality. We show how data quality can be measured in a reproducible and understandable way on the basis of defined business rules through the use of a data quality tool. As business rules directly reflect the requirements of the responsible specialists, they are in a po...

This paper surveys the instrumentation, calibration procedures, measurement techniques, and standards which can be used to characterize extremely low frequency (ELF) electric and magnetic fields. While the focus of the paper is on power frequency and power frequency harmonic fields, the measurement methods discussed are appropriate in principle for other ELF frequencies.

Neutron electric dipole moment measurement (EDM) requires precise control of the electric and magnetic field in the test cell. External magnetic field should be shielded out completely. As the experiment will be conducted in cryogenic environment (~ 4K), conventional μ-metal shield cannot work in low temperature. Shielding property of another magnetic material, Metglas, was study in this projec...

The real-time accurate measurement of the geomagnetic-field is the foundation to achieving high-precision geomagnetic navigation. The existing geomagnetic-field measurement models are essentially simplified models that cannot accurately describe the sources of measurement error. This paper, on the basis of systematically analyzing the source of geomagnetic-field measurement error, built a compl...

O. Schmid, P. Artaxo, W. P. Arnott, D. Chand, L. V. Gatti, G. P. Frank, A. Hoffer, M. Schnaiter, and M. O. Andreae Max Planck Institute for Chemistry, Department of Biogeochemistry, PO Box 3060, 55020 Mainz, Germany University of São Paulo, Institute of Physics, São Paulo, Brazil Desert Research Institute, Division of Atmospheric Science, Reno, NV, USA Institute of Nuclear Energy Research, Atmo...

The article describe systematically the electromagnetic (EM) side channels sources and electromagnetic field of the microprocessor and is focused on the best way how to measure the near electromagnetic field of microprocessor. It was suggested and realized several electromagnetic probes and it was performed the measurement regarded to the theoretical background on the testbed with cryptographic...