No 2 (2015)
3-6 86
Abstract
The description, structure, operating principle, technical and metrological characteristics of GET 118-2013 State primary standard of volumetric and mass gas flow rate units are presented.
FUNDAMENTAL PROBLEMS OF METROLOGY
11-18 90
Abstract
The role of fundamental constants and measurement data for the Planck, Avogadro and Boltzmann constants and the elementary electric charge in connection with the planned transition to new definitions of four base SI units (the kilogram, mole, ampere and kelvin) based on fixed values of these constants is discussed.
19-22 67
Abstract
A mathematical model of vertical oscillations appearing in the base-foundation system of a symmetric ballistic laser gravimeter has been developed. The analytical expressions describing the oscillations in the mechanical system of the ballistic laser gravimeter occurring as a result of the force pulse impact on the foundation at the moment of the test body acceleration have been found. The influence of the measurement interval duration and of the factor of foundation oscillation damping on the results of gravity acceleration measurement has been studied.
GENERAL PROBLEMS OF METROLOGY AND MEASUREMENT TECHNIQUES
23-26 73
Abstract
Scientific-technical production cycles (technological setups) known in economy are the basis for the new approach to optimization of the national measurement standards base. New types of technique, technologies and materials ought to correlate with development of measurement techniques and of metrological infrastructure. The Lists of the Federal Critical Technologies are bringing to development of new measurement standards and to perfection of the existing ones.
27-31 150
Abstract
The systems of complex technical objects state control at the origin of unnominal situations have been developed. The observability problem of sush situations and its solution based on the principle of information redundancy is analyzed. The technology of unnominal situations control is proposed and the information redundancy creation methods are considered.
LINEAR AND ANGULAR MEASUREMENTS
32-34 69
Abstract
The calculation procedure and the string converter device are considered. The properties are revealed and a possibility of use converter use in geometrical measurements is definedtermined.
OPTICOPHYSICAL MEASUREMENTS
35-37 74
Abstract
The radiation propagation through the composite materials samples in the range 0,2-0,3 THz is considered. The samples are strips of carbon fibers packed in tapes impregnated with epoxy resin, and a block of randomly arranged quartz threads bound by borosilicate glass. Show the possibility of using this method to study the structural parameters and for composite materials flaw detection.
37-41 95
Abstract
The results of studies of noise power spectral density and transmission electron microscopy of PbS based photosensitive structures have been analyzed in view of identifying the possible noise formation mechanizms.
MECHANICAL MEASUREMENTS
41-45 61
Abstract
The procedure and examples of preliminary analysis of possibilities of multi-parameter diagnostics application is presented. The reason affecting the accuracy of determination of diagnosed parameter current value - are shown.
THERMOPHYSIC MEASUREMENTS
46-49 129
Abstract
The results of experimental study of aluminium оxide relative lengthening at cyclic thermal loadings in the range of temperatures 1200-1860 K are presented.
49-52 63
Abstract
The analysis of errors of determination of thermal characteristics of a typical composite heterogeneous material - sintered aluminum powder - caused by radiation energy transfer in the heated layer of material in the conditions of laser pulse method realization at exposure of the collimated laser pulse of finite duration on the composite surface has been carried out. The influence of material porosity and radiation absorption process on this error value was determined.
52-56 83
Abstract
The experimental study of elastic dynamic characteristics of physical model of ampoule for space transportation of radioactive wastes in the «self-delivery» mode when the radioactive wastes are a primary energy source is described. For experimental study of the elastic dynamics characteristics of ampoule the experimental complex was created and the procedure of study of cold and heat-stressed state of the ampoule is developed. The amplitude frequency characteristics of experimental physical model of the ampoule for various temperature modes were received.
RADIO MEASUREMENTS
56-60 84
Abstract
The algorithms for I/Q-signal parameters estimation were described in details. The required sequence of the measurements of the constellation diagram has been analyzed. That enabled to set error tolerances independently for such constellation parameters as system target error (STE), amplitude imbalance (AI), quadrature error (QE), modulation error ratio (MER) and phase jitter (PJ).
ACOUSTIC MEASUREMENTS
61-64 89
Abstract
The problem of non-contact ultrasonic testing of products through a non-resonant air interval has been considered. The results of development of highly-sensitive broadband low-frequency ultrasonic piezoelectric transducers for non-contact testing of composite material products have been presented.
ИЗМЕРЕНИЯ ИОНИЗИРУЮЩИХ ИЗЛУЧЕНИЙ
Новый класс псевдослучайных бинарных конфигураций для кодирующих коллиматоров ионизирующих излучений
64-67 67
Abstract
New ways of creating the 2-D pseudorandom binary configurations based on the basis of pseudorandom sequences and extended pseudorandom sequences are considered. That allows to use the proposed configurations for creating the multi-pinhole coding collimators during registration of an ionizing radiation. The four types of proposed configurations are presented.
MEDICAL AND BIOLOGICAL MEASUREMENTS
68-70 60
Abstract
High-tech information-measuring complexes of cancer diagnostics with one of the basic methods - the histological analysis application are considered. The main interdisciplinary problems of development of systems of histological diagnostics have been studied. The key points of methodology of these complexes creation are considered. These key points are proved by successful experience of development and application of these complexes in the clinical practice.
PHYSICOCHEMICAL MEASUREMENTS
71-73 109
Abstract
The possibility of using of optoelectronic method of monitoring (the technical vision) some technological parameters for example the electrolytic process of aluminum producing from a liquid electrolyte on purpose to improve the efficiency of the process control is discussed.
ISSN 0368-1025 (Print)
ISSN 2949-5237 (Online)
ISSN 2949-5237 (Online)