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The purpose of the current paper is to validate experimentally the possibility to combine optical and computer methods for image processing. The X-ray imaging is one of the most efficient methods for inspection of the nuclear fuel elements (NFE). X-rays pass through the inspected object and cause various degrees darkening of the film placed behind the object. The visual analysis of the x-ray images...
The two-dimensional decomposition model and equivalent scheme in lumped element basis for microwave film load of a circle sector shape were developed with help of the current bands method. Frequency properties of film resistors of different forms were investigated accordingly with this model.
The method of constructing the microwave attenuators is proposed. The attenuators implemented as N symmetrical U-shaped structures, which allows the extension of bandwidth, with maintaining specified power level of the input RF signal.
The band-pass filter is considered. The filter has wide pass band and good matching not only in the pass band but also in the rejection band. The filter has steep band edges. The filtration quality of the filter corresponds to the quality of a bridge filter.
Analysis of the capacitance distribution over the cross-section of the micro-strip line is considered. The calculations were carried out using a finite element method after conformal mapping of the considered area. The results obtained allow calculating the capacitance in the cross-section of the unit length micro-strip line (discrete) on the top and bottom surfaces and edges of the micro-strip line.
The method for calculation of the capacitance is considered for capacitors with rectangular and circular cross-section. The method is simple and has high accuracy. The method utilizes known formulae for micro-strip line segment wave resistance, effective dielectric permittivity, effective width and length of the micro-strip line segment. Results of capacitance calculation for the plane capacitor with...
A design concept and a constructional implementation of the ultrabroadband microwave attenuator on the power level of 2 kW, made on the basic of film technology with the use of dielectric substrate made of beryllium ceramics, were considered in this article. Using of dendritic (tree-like) parallel-series connection of several resistance elements in the attenuator design provided uniform distribution...
It is shown that current strips method together with kalman filtering decrease the confidence interval of the measured microstrip lines inductance values.
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