Method of evaluating the level of confidence based on metrological risks for determining the coverage factor in the concept of uncertainty

Abstract

A method for estimating the level of confidence for determining the coverage factor based on metrological risks is proposed using the example of using information on tolerances and uncertainty of measuring the activity of ions, which allows to establish a reasonable interval around the measurement result, within which most of the values that can be justified are assigned to the measured value.

Indicators of reproducibility and suitability for assessing the quality of production services

“…In order to estimate the proportion of product units that do not match the requirements of the suitability of the production process, it is necessary to replace the reproducibility indexes and indexes of suitability in formulas ( 18) and (19), and thus common part of the values of the characteristics distribution of the production services (production process) that may go beyond the tolerance field.…”

New Method of on-Line Successive-Approximation Adc Calibration

“…The results of the algorithm operation for any input signal are demonstrated by the ADC transfer function (TF). The mathematic representation of ADC TF shows the expression (1) [2,3,10]…”

“…Other combinations will be calling "used" (UC). The expression (2) determines if the combination belongs to unused category or not [8,10]:…”

Study of the Electromagnetic Impact of the Overhead Transmission Lines of 330 Kv on Ecological Systems

“…Proceeding from the above-mentioned, it follows that the improvement of the construction of 330 kV overhead transmission lines not only increases their carrying capacity, but also limits the strength of EMF near the overhead transmission line, that leads to the decrease of the eliminated areas for overhead transmission lines. Thus, in the process of overhead transmission lines design, routes of which pass near the residential areas or other places where people remain for a long time (play grounds, gardens) it is expedient to include in the pre-project assessment of the variants the analysis of electromagnetic situation near the route of the overhead transmission line, in particular, consider the strength value of EMF not only on the route of the line, but also at a distance of more than 20 m from the projection of the outer conductor, because with the distance from the overhead transmission line, the strength decreases slower, than at small distances, that is why, the given fact requires more accurate calculation [16,17]. For the realization of these tasks the following engineering solutions can be used:  decrease of the interphase distances at a result of carrying out measures, aimed at reduction of the calculated overvoltage ratio;  transition from the conventional to compact and selfcompensating transmission lines of the increased carrying capacity and reduced ecological impact;  usage of the vegetation arrays to provide the ecological safety of the lines.…”