No 11 (2013)
STATE STANDARDS
3-6 90
Abstract
The principles of development, the components, structure and functioning of the National primary special standard of lightning discharge pulse current unit at the range from 1 to 100 kA have been considered. The metrological characteristics have been studied, the uncertainty components were determined and the expanded uncertainty of unit reproduction by the standard equal to 2,6 % has been calculated.
GENERAL PROBLEMS OF METROLOGY AND MEASUREMENT TECHNIQUES
7-12 49
Abstract
An analysis of uncertainty of the resuls of measurement of short circuit current of the thin-film photovoltaic modules is presented. The Ishikawa diagram showing the main sources of uncertainty at using a pulse solar radiation simulator is developed. The calculation of the expanded total uncertainty of the result of short-circuit current measurement with taking into account the revealed sources of uncertainty has been carried out.
12-16 60
Abstract
The several strategies of rational selection of acceptance limits for the case of measurement uncertainty and the unknown consumer and producer global risks are considered. The approximate equations for calculation of acceptance limits are presented.
НАНОМЕТРОЛОГИЯ
17-22 57
Abstract
The ellipsometric method of depth inhomogeneity evaluation of thin films coatings in depth range from 5 to 150 mn is proposed.
OPTICOPHYSICAL MEASUREMENTS
23-26 59
Abstract
A procedure of speckle interferograms decoding based on S -transformation is suggested. It includes the correction of factors distorting the calculated phase profile. The experimental assessment of the method error measurement of shifts is obtained. The possibility of registration of shifts equal to hundredths of micrometer is presented.
27-28 79
Abstract
The studies of metrological characteristics of optical scanner – a component of CAD/CAM OptikDent system – is described. The studies were carried out by comparison of the surface test objects profiles measured by means of the optical scanner and plate-measuring engine.
MECHANICAL MEASUREMENTS
29-32 81
Abstract
А method for determination of oscillation parameters of elements of turbounits rotating assemblies based on the analysis of primary converters output signal variations is desсribed. The principal possibility of determination of turbomachine blades, oscillation parameters is shown by the example of approximating mathematical model. The block scheme of the device for experimental testing of the suggested is presented.
33-38 79
Abstract
Thedesignandoperation principle of the two-phase oil-stratalwaterflow meter based on the narrowing device and gamma densimeter as well as the results of the flow meter testing on the TUV SUD NEL company multiphase oil–gas–salty water stand are presented. Operational features of the narrowing device are noted and thecompliance of the obtainedflowmeter characteristics with the State standard requirements is estimated.
LINEAR AND ANGULAR MEASUREMENTS
38-40 54
Abstract
The method of control and estimation of the accuracy and quality of filling the profile of the internal thread obtained by processing of plastic deformation is considered.
41-42 70
Abstract
The types and applications in today's caliber machine-building industry were considered.
THERMOPHYSIC MEASUREMENTS
42-46 70
Abstract
The possibility of experimental determination of the real temperature of remote object with unknown values of its emittance and attenuation coefficient of IR-radiation in the intermediate environment – atmosphere –is theoretically demonstrated. Certain experimental data is presented.
46-49 81
Abstract
The different devices for temperature measurement in raw bricks are analyzed and the method of organization of optimal control of ceramic brick drying process to reduce the industrial enterprise energy consumption by means of the new Celsius thermal sensors is suggested. It is shown that the the device is universal and will be effective for enterprises where the thermodynamic parameters control is a basis of technological process.
ELECTROMAGNETIC MEASUREMENTS
50-54 57
Abstract
A procedure of local approximation is developed for study of magnetic microstate in superconductors allowing to obtain the useful information on the crystal microstate of a sample. At probing a sample volume by means of the front of a decreasing magnetic field, the possibility to isolate and analyze the physical processes in superconductors on the vortex front, is created. The qualitatively new results are obtained for samples with various microstructures.
RADIO MEASUREMENTS
54-56 70
Abstract
An approach to modeling of the mirror antenna radiation with taking into account the vibration deformation is suggested. The connection between the incipient radiating surface deformations and the changes of radiation direction diagram is established. The received results analysis is carried out.
57-59 79
Abstract
On the base of general view of slow wave systems dispersion equation with taking into account its environments characteristics the analytical expressions to define the complex coefficients of slowdown and reflection were obtained. Such coefficients can be also measured experimentally. It is shown in the example of wavequide travelling wave tube model that the use of these units allows to conduct a simplified analysis of the waves transformation, structure and the space charge of the electron beam in microwave instruments with long-term interaction.
60-64 112
Abstract
The method of direct measurements of loss resistance for microwave PIN diodes with application of path vector analyzer is considered. The problems of design of a contact device for measured PIN diodes and calibration are analyzed. The scheme of installation for one-port and two-port measurements is presented.
MEDICAL AND BIOLOGICAL MEASUREMENTS
64-67 86
Abstract
The problems of metrological assurance of automaticbiochemical analyzers for measurement of optical density of the liquid biological sample and subsequent conversion of the obtained value to required parameter are considered.The possibilities of using the Nigrosinesolutions for verification of the metrological characteristics of biochemical analyzers have been studied. The application of the designed optical density measures KMOP-N as the means of the above measuring instruments verification is suggested.
68-73 41
Abstract
A method of online monitoring of mucosa structural-morphological parameters spatial distributions important for early detection of oncological diseases has been developed. It is based on obtaining of tissue’s multispectral endoscopic image in diffuse-reflected light with wavelengths 450, 480, 577, 600, 660 and 700 nm and pixel-by-pixel processing of this image using robust regressions between its spectral characteristics and tissue parameters.
ISSN 0368-1025 (Print)
ISSN 2949-5237 (Online)
ISSN 2949-5237 (Online)
