نتایج جستجو برای: electric frequency measurement
تعداد نتایج: 1021894 فیلتر نتایج به سال:
This paper deals with the measurement of AC corona inception voltage, Vincp, at the tip of a rod electrode using a hemispherically-capped rod-plane electrode configuration for various rod radii with a short air gap. Effects of atmospheric pressure and temperature variation on Vincp are investigated experimentally. An empirical equation for the field form factors of the hemispherically cappe...
introduction: public and occupational exposure to extremely low frequency (elf) electric and magnetic fields induced by electrical equipment is a significant issue in the environment and at the workplace due to their potential health effects on public health. the purpose of this study was assessment of the electric and magnetic fields intensities and determination of mental and psychological ef...
propose: standard electroporation and electrochemotherapy caused the endothe- lial cell permeability and reduction in tumor blood flow. the effects of low voltage and high frequency electroporation on the endothelial cells permeability and viability were expected. therefore, the propose of present study was to evaluate the effect of electroporation with bleomycin or alone on viability and perme...
This paper introduces Artificial Neural Network (ANN) method for measuring voltage in the Optical Voltage Transducer (OVT) using one or more electric field sensors. In order to obtain an accurate voltage measurement with minimum number of sensors, first the locations of sensors are specified by quadrature method. Then the electric field intensity at these locations is provided to ANN for the ca...
This paper presents the laboratory restructuring and development for the course of Electric Machinery, also known as Electric Machines or Energy Conversion, for an integrative teaching approach. It illustrates the laboratory restructuring by using modern computer software and hardware information technology (IT) tools, by introducing DSP and digital control technology, and by restructuring a tr...
A new approach to perform measurement of potentials in high voltage levels using electrooptical Pockels sensors is presented here. This paper describes an application of the White Light Interferometry technique to a high voltage optical fiber measurement system. In this system the information is encoded in the spectrum of the light, allowing the measurement to be independent of the optical powe...
The direct measurement of the plasma potential poses a major challenge to plasma diagnostic, and the sole tools for localized measurement of this parameter are certain forms of electric probes. For many decades emissive probes have been used in laboratory plasmas for a direct determination of the plasma potential Φpl. Only during the last years emissive probes have been applied for the first ti...
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