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Metrology and Measurement Systems
EN In this work, the influence of both characteristics of the lens and misalignment of the incident beams on roughness measurement is presented. To investigate how the focal length and diameter affect the degree of correlation between the speckle patterns, a set of experiments with different lenses is [...]
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Archives of Acoustics
EN The purpose of the study was to determine the dependence of perceived roughness on the frequency ratio of two simultaneous harmonic complex tones. A set of 36 dyads forming musical intervals of various tuning systems was presented in three pitch registers. Twelve sound engineering students judged ea[...]
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Archives of Acoustics
2007 Vol. 32, No. 3 737--748
EN Two experiments were carried out to determine the dependence of perceived roughness on the frequency ratio of two simultaneous harmonic complex tones. In the first experiment, the frequency ratios of the tone pairs corresponded to 35 within-octave intervals of various musical tuning systems. In the [...]
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Problemy Mechatroniki : uzbrojenie, lotnictwo, inżynieria bezpieczeństwa
EN The paper describes the influence of shot peening on Mg-Al-Zn-Mn alloy surface. There are estimates focusing on the roughness of the shot peened surfaces and size of the selected shot peened material - corund. Based on the results of measurements, the evaluation was oriented on the curve of roughnes[...]
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Acta Geophysica
EN We investigate the roughness of and the correlation with topography of the observed, topographically corrected (T), and bathymetrically and topographically corrected (BT) gravity disturbances. The numerical investigation is carried out for the gravity disturbances at the Earth's surface and for the [...]
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Optica Applicata
2010 Vol. 40, nr 4 811--818
EN According to vector scattering and scalar scattering theory, the relationship of BRDF (bidirectional reflectance distribution function) of light scattering from micro-rough surface with TIS (total integrated scattering) is analyzed. Roughness statistical characterization such as RMS (root mean squar[...]
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Metrology and Measurement Systems
EN The paper presents a spectral formulation of surface profile irregularity in a wideband frequency range for roughness, waviness and shape components along the measured length. A unique distribution of roughness and waviness components is proposed, according to the nature of their origination in the [...]
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Mechanik
2010 R. 83, nr 12 957-962
PL Pomiar zdeterminowanych wartości nierówności profili powierzchni wyrażanych cyfrowo jest złożonym problemem interdyscyplinarnym, który ma istotne ograniczenia techniczne i metrologiczne, często niezauważane w praktyce pomiarowej i analizie ich wyników. Aby spełnione były różne uwarunkowania zależne [...]
EN Explained are the constraints to the surface roughness measurements in wide-frequency profile components depiction.
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Przegląd Mechaniczny
2007 nr 9 supl. 115-118
PL W pracy zaprezentowano zastosowanie uogólnionych krzywych L2 sklejanych do wyznaczenia linii średniej profilu chropowatości. Zasadniczą różnicą pomiędzy filtrem wykorzystującym krzywe sklejane opisanym w literaturze a przedstawionym w pracy jest przyjęcie, że odstęp pomiędzy węzłami krzywej jest duż[...]
EN L2 - splines were applied to determine the mean line of a roughness profile. The major difference between the filter using splines, which is described in literature, and the filter described in the paper lies in the fact that the distance between spline nodes is much bigger than the profile sampling[...]
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Optica Applicata
EN This paper presents the results of research of Cu/Ni multilayers magnetron-deposited on an Si (100) substrate. The thickness of Cu sublayers was identical in all multilayers and equalled 2 nm. The thickness of Ni sublayers varied between 1.2 and 3.0 nm. The surface topography of the multilayers was[...]
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Zeszyty Naukowe Politechniki Poznańskiej. Mechanika
2003 Nr 49 77-88
PL W artykule przedstawiono wyniki badań chropowatości powierzchni prętów stalowych przecinanych na tokarce nożem NNPb. W procesie technologicznym dużej liczby przedmiotów osiowo-symetrycznych o średnicach nawet do 100 mm istotną operację stanowi odcięcie wykonanego fragmentu lub gotowego wyrobu od prę[...]
EN The results of research of roughness after cut-off operation on the turning machine with using cutter type NNPb have been presented in the paper. Cut-off operation is often essential operation in the technological process of manufacturing of axial symetrical machine parts with diameters even to o 10[...]
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Gospodarka Wodna
2002 Nr 12 522-524
PL W artykule poddano analizie wpływ wartości szorstkości przewodów z tworzyw sztucznych na sprawność hydrauliczną podczas grawitacyjnego transportu ścieków. Podano przykłady wyrobów rurowych i deklarowane przez producentów wartości parametru szorstkości. Oceniono wpływ tego parametru na sprawność hydr[...]
EN The paper analysis the influence of the surface roughness of sewers made of plastics on the hydraulic efficiency of the gravitational transport of waste waters. There are presented examples of pipes and values of parameter of roughness being declared by the producers. The impact of that parameter on[...]
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Advances in Science and Technology Research Journal
EN The article introduces two variants of making spur gears by using universal CNC machine tools with universal shank cutter. The measurement of the chosen parameters of geometric structures of gear tooth surface were carried out as well as their comparison was made.
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Bulletin of the Polish Academy of Sciences. Technical Sciences
EN The topic of incompressible fluid flow in rough channels is of practical interest in many diverse applications. It also forms the basis of our understanding of fluid-wall interactions, turbulent eddy generation, and their effect on the frictional pressure losses. Although this topic is also of funda[...]
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Archives of Mechanical Technology and Automation
EN The article presents the study of surface‘s quality of punch stamp built from a Textit J composite, Fibroflex 5 polyurethane and X210Cr12 steel tool. The composite and polyurethane were used for rapid tooling, during which an experimental stamping of the die was verified. During the experiments, var[...]
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Metrology and Measurement Systems
2015 Vol. 22, nr 2 289--302
EN The form, waviness and roughness components of a measured profile are separated by means of digital filters. The aim of analysis was to develop an algorithm for one-dimensional filtering of profiles using approximation by means of B-splines. The theory of B-spline functions introduced by Schoenberg [...]
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Archives of Metallurgy and Materials
2016 Vol. 61, iss. 3 1291--1296
EN One of the innovative technology of producing the components is Selective Laser Melting (SLM) belongs to additive manufacturing techniques. SLM technology has already been successfully applied in the automotive, aerospace and medical industries. Despite progress in material flexibility and mechanica[...]
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Physicochemical Problems of Mineral Processing
EN In this study, the effect of roughness of particles on flotation efficiency along with surface forces among interacting particles was investigated. Glass beads representing smooth spherical particles with a size fraction of -150+90 μm were used. The etching technique was used to produce roughness of[...]
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Advances in Science and Technology Research Journal
EN The article presents the results of studies on the effect of plasma cutting technological parameters upon the shape of bearing curves and the parameters of the curve. The topography of surface formed by plasma cutting were analyzed. For measuring surface roughness and determining the bearing curve t[...]
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Advances in Science and Technology Research Journal
2017 Vol. 11, no 2 192--197
EN The article deals with the study of surface roughness of thin-walled houses bearing rollers for roller mills. The size and shape of the rear end housing was designed in order to measure the surface roughness of the inner cylindrical bearing surface with a wall thickness of 4, 5 and 6 mm. For compari[...]
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