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Metrologiya

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No 2 (2015)

ОБЩИЕ ВОПРОСЫ МЕТРОЛОГИИ И ИЗМЕРИТЕЛЬНОЙ ТЕХНИКИ

3-8 49
Abstract
The building neurodynamic structure of the sensor capable of adapting to a range of measurements and to disturbances as well as its neural network mathematical model have been considered. The block diagram of the adaptive sensor is suggested.

ЛИНЕЙНЫЕ И УГЛОВЫЕ ИЗМЕРЕНИЯ

9-15 48
Abstract
A comparative analysis of the ways to implement the Cartesian coordinate system in devices for spatial measurement is presented. The possible ways of improving the accuracy of the coordinate axes realization is shown. The analysis of coordinate axes assembly in correlation with the selection of converters is corried out.

МЕХАНИЧЕСКИЕ ИЗМЕРЕНИЯ

16-24 120
Abstract
The results of the theoretical and experimental studies for development of vortical flowmeter with operating principle based on the use of vortical Karman path effect are presented.
25-35 85
Abstract
The method of temperature calibration of the block of micromechanical accelerometers being a part of the independent inertial measuring module is presented. It is based on division of additive temperature errors on two components: drift of zero and mean square deviation of an output signal. The study of temperature dependence of each additive error component has been carried out. The coefficients of mean square deviation model and drift of zero of micromechanical accelerometer MMA7331L are calculated.
36-47 44
Abstract
The conditions of applicability of quasi-static approximation at interaction of acoustic waves and vibration fields are considered. The criteria allowing to assess the methodic error at the spread spectrum of vibration field under study have been revealed. The errors arising at modulation of the reflected acoustic signal by phase and amplitude have been estimated.

ЭЛЕКТРОМАГНИТНЫЕ ИЗМЕРЕНИЯ

48-54 51
Abstract
The sensor error correction via phase separation channels of conversion of the working and reference element parameters and the implementation of the process of converting the sensor information parameter by means of microcontroller - are considered.
55-63 46
Abstract
The circuit for testing static the electric power meters at the effect for constant component and even harmonics recommended in GOST R 52322-2005 has been studied. The dispersion of similar diodes parameters was determined experimentally and the errors introduced by these diodes nonidenticity were estimated. The similar test circuit with lower power consumption and nonsensitivity to difference of diodes parameters was developed.

РАДИОТЕХНИЧЕСКИЕ ИЗМЕРЕНИЯ

64-71 43
Abstract
The study of appropriateness of usage of the probe TK11 as a device to match an impedance for measurement of asymmetric industrial radio interferences by the supply circuit in frequency range 0,15-30 MHz for the current less than 25 A is presented. The conditions by which the probe can be applied for regulated measurements were definite.


ISSN 0132-4713 (Print)
ISSN 2712-9071 (Online)