Mathematical model of a metrological system for servicing control and measuring equipment

1974 ◽  
Vol 17 (7) ◽  
pp. 1101-1103
Author(s):  
V. V. Kreshchuk
Keyword(s):  
Mathematical Model ◽  
Measuring Equipment ◽  
Metrological System

scholarly journals Step-by-step control of target efficiency indices of the control and measuring equipment stock applied in construction and housing and communal services

2018 ◽  
Vol 170 ◽  
pp. 01010 ◽  
Author(s):  
Rustam Khayrullin ◽  
Pavel Ivanov
Keyword(s):  
Mathematical Model ◽  
Finite Difference ◽  
Measuring Equipment ◽  
Technical Condition ◽  
Measuring Instruments ◽  
Finite Difference Equations ◽  
Target Values ◽  
The Mathematical Model ◽  
Step Control ◽  
Different Levels

The mathematical model is considered for the formation and implementation of development strategies of the stock of control and measuring instruments (CMI) applied in construction and housing and communal services(HCS), and step-by-step control of efficiency target values of the stock. The model is based on a system of finite - difference equations describing the change of number of the CMI samples with different levels of technical perfection and technical condition at each planning interval. The model allows calculating the required number of CMI for procurement and repairs in the various groups for provide target values of efficiency indices at each planning interval. Controller is number of modern CMI samples for procurement and number of modern and obsolete faulty CMI samples for the repairs. The results of calculations are presented.

scholarly journals Development of a generalized mathematical model of static error electromechanical measuring equipment

2021 ◽  
Vol 5 (2) ◽  
pp. 38-41
Author(s):  
Viktor Mosharenkov ◽  
Serhii Voitenko
Keyword(s):  
Mathematical Model ◽  
Measuring Equipment ◽  
Calibration Characteristic ◽  
Measuring Instruments ◽  
Static Error ◽  
Transmission Coefficients ◽  
Military Equipment ◽  
Measurement Mode ◽  
Maintenance Activities ◽  
Measuring Control

To keep military equipment fit for use, carry out maintenance activities, an important and integral part of which is metrological service. The effectiveness of metrological services depends on the completeness of the coverage of the monitored parameters, frequency and reliability of their measuring control. The most common, at present, when controlling the parameters of military equipment are electromechanical measuring equipment. The main metrological characteristic of electromechanical measuring instruments in a static measurement mode is the nominal calibration characteristic. During operation, the calibration characteristic of electromechanical measuring instruments, under the influence of various factors, has deviations from the nominal, which leads to an instrumental static error. The article deals with the applied aspects of assessing the static error of electromechanical measuring equipment, which is expressed through the sensitivity or static transmission coefficients of measuring transducers. Based on the results of the analysis, a generalized mathematical model of the relative static error of electromechanical measuring equipment for various structural schemes of connecting measuring transducers was obtained. It is proposed to apply a generalized mathematical model to assess the relative static error of electromechanical measuring instruments (with various structural schemes) during their operation. The use of an updated static error will allow to refine the calibration characteristics of electromechanical measuring instruments, which in turn will lead to obtaining reliable information about the state of military equipment during metrological maintenance and immediately before use.

Usability Evaluation Method for VRLA Battery Measuring Equipment

2017 ◽  
Vol 7 (2) ◽  
pp. 1
Author(s):  
Haifeng Jiang ◽  
Shusheng Lin
Keyword(s):  
Mathematical Model ◽  
Measuring Equipment ◽  
Evaluation Method ◽  
Internal Resistance ◽  
Test Equipment ◽  
Electrochemical Characteristics ◽  
Lead Acid Battery ◽  
Resistance Level ◽  
Resistance Value ◽  
Lead Acid

This paper presents a method for evaluating the availability of lead-acid battery test equipment and designs the corresponding evaluation mathematical model. International standard IEC60896-2 specifies the lead-acid battery internal resistance level. Because the internal resistance value is usually micro-Ohm level and the lead-acid battery has special electrochemical characteristics, it’s very difficult to measure it. Until now no authority can officially provides the actual resistance value for a given battery. However, the industry has agreed that the internal resistance will gradually increases during the use of the battery and the performance of the battery has close relationship with the change of the internal resistance, so even if the measurement equipment can not measure the absolute actual resistance, but as long as the battery can be measured a small change in internal resistance, it has a high availability. In this paper, we propose a micro-incremental verification method and a mathematical model to facilitate, accurately and quickly verify whether the battery internal resistance test equipment can accurately and stably measure the internal resistance of the battery, and provide technical verification reference for selecting the battery measuring equipment. 

Mathematical model of hit phenomena and its application to movie advertisement

2008 ◽  
Author(s):  
Ishii Akira ◽  
Yoshida Narihiko ◽  
Hayashi Takafumi ◽  
Umemura Sanae ◽  
Nakagawa Takeshi
Keyword(s):  
Mathematical Model

Dynamics of conflict: Mathematical model of the interactions between two actors

2008 ◽  
Author(s):  
Larry Liebovitch ◽  
Vincent Naudot
Keyword(s):  
Mathematical Model

A mathematical model for brightness and contour perception

1976 ◽  
Author(s):  
Jiro Hamada
Keyword(s):  
Mathematical Model ◽  
Contour Perception

T-cell vaccination: Insights and questions raised by a mathematical model

1997 ◽  
Vol 56 (1-3) ◽  
pp. 172
Author(s):  
J Borghans
Keyword(s):  
Mathematical Model ◽  
T Cell ◽  
T Cell Vaccination

A MATHEMATICAL MODEL FOR PARTICLE CLASSIFICATION

1988 ◽  
Vol 8 (2) ◽  
pp. 133-144 ◽  
Author(s):  
Chunxuan Jiang
Keyword(s):  
Mathematical Model ◽  
Particle Classification
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