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In this paper Au ring microelectrodes are fabricated and characterized. With an optical fibre core as a substrate Au film with thickness 300nm was coated by an electron beam evaporation system, then on this Au coated substrate a parylene passivation layer was deposited, forming the desired Au ring microelectrode. Scanning electron microscopy (SEM) was used to characterize the quality of the deposited...
This paper introduces a methodology to simulate the currents and fields during an air discharge electrostatic discharge (ESD) into a product by combining a linear description of the behavior of the DUT with a nonlinear arc resistance equation. The most commonly used test standard IEC 61000-4-2 requires using contact-mode discharges to metallic surfaces and air-discharge mode to nonconducting surfaces...
The methods of line selection today focus on one target of the signal such as amplitude, frequency or phase. A novel method based on holospectrum algorithm to detect single-phase faults in distribution systems is proposed in this paper. After structuring analytic signals of zero sequence current and voltage, the holospectrum algorithm is applied. Thus the analysis of combined signal of amplitude,...
The analysis presented herein contains closed-form analytical expressions to calculate attenuation in a layered structure “rough metal-dielectric-dielectric”, which is a practically important problem in separating dielectric loss from rough conductor loss in actual PCB stripline geometries, when measuring dielectric constant (Dk) and dissipation factor (Df) using travelling wave...
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