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On the development of an impulse current generator
Proceedings of the International Conference on Electromagnetic Interference and Compatibility '99 (IEEE Cat. No. 99TH 8487), 2002Lightning is known to be the single largest cause of outages on power systems. Protection against lightning invariably consists in employing surge arresters. An important performance criterion for an arrester is the residual voltage. The measurement of residual voltage employs an impulse current generator. This work deals with design and development of
N.K. Kishore, P. Bhakta, R.K. Sharan
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Measurement of impulse current by laser current transformer
Proceedings of the IEEE, 1968Sharp impulse current from a high-voltage impulse generator has been measured by a laser current transformer based on the Faraday rotation of a laser beam. The impulse waveform measured by the laser agreed well with the waveform measured by a conventional method using a noninductive resistor.
S. Takeshita, T. Sasano
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Development of a Measurement Setup for High Impulse Currents
IEEE Transactions on Instrumentation and Measurement, 2013The understanding of high-current events such as short-circuit transients and impulse currents is important for power quality management. The work carried out and presented in this paper is focused on the characterization of commercial current transducers for traceable on-site measurements of 8/20 $\mu \hbox{s}$ (rise/fall time) impulse currents up
Daniela Istrate +2 more
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Reflection Impulsivity in Current and Former Substance Users
Biological Psychiatry, 2006Chronic drug use is associated with increased impulsivity, risky decision making, and impaired behavioral control, but the underlying mechanisms of this neurocognitive profile remain unclear. We investigated impulsive responding in the context of decision making, using a novel behavioral measure of reflection impulsivity: the tendency to gather and ...
Luke, Clark +3 more
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Outline of theory of impulse currents
Proceedings of the American Institute of Electrical Engineers, 1916In Part I it is shown how, from the integral of the general differential equation of the electric circuit, which has been discussed in a previous paper, all the types of electric currents are derived as special cases, corresponding to particular values of the integration constants. The equations of the circuits with massed constants, that is, the usual
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Current singularities: Drivers of impulsive reconnection
Physics of Plasmas, 2005Reconnection in nature is generically not quasi-steady. Most often, it is impulsive or bursty, characterized not only by a fast growth rate but a rapid change in the time-derivative of the growth rate. New results, obtained by asymptotic analyses and high-resolution numerical simulations [using Adaptive Mesh Refinement] of the Hall magnetohydrodynamics
A. Bhattacharjee +2 more
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Impulse approximation with current conservation
Physical Review C, 1980It is found that, if the off-shell form factors for nucleons can be invoked to ensure current conservation during the instantaneous absorption of the four-momentum transfer by a particular constituent nucleon, the nuclear current in the resultant impulse approximation is conserved in the operator sense.
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Impulse Current Transformer With a Nanocrystalline Core
IEEE Transactions on Magnetics, 2013The objective of this paper is to propose and to validate the behavior of an impulse current transformer with a nanocrystalline alloy toroidal core. The purpose of this transformer is to measure a current square waveform with a fundamental harmonic frequency of 25 kHz.
R. Prochazka, J. Hlavacek, K. Draxler
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“Current place of impulse oscillometry in the assessment of pulmonary diseases.”
Respiratory Medicine, 2020In 1956, a diagnostic tool using the forced oscillation technique (FOT) was developed to examine respiratory functions. A modification of this method is impulse oscillometry (IOS). In the latter, a loudspeaker delivers to the respiratory system a regular, square pressure wave at a constant frequency from which all other individual frequencies are ...
Marcin, Bednarek +3 more
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Wirewound Shunts For Measurement Of Fast Current Impulses
IEEE Transactions on Power Apparatus and Systems, 1984The paper describes the operating principle, design features and measuring characteristics of wirewound shunts. Fast response and reduced thermal-resistance drift are the main goals to be achieved, although a sturdy structure is also required to meet the demands of an industrial laboratory environment.
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