Methods for monitoring metrological characteristics of scientific and physical parameters of intelligent sensors in real operating conditions

Matyakubova, P. M.; Masharipov, S.; Ruzmatov, K R; Sultanov, Murodjon

doi:10.1088/1742-6596/1889/3/032037

Cited by 12 publications

(5 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…A strong positive correlation r=0.9296 was observed between kinematic viscosity and density values. As a result of the application of the method of least squares, it is shown that the relationship between temperature and kinematic viscosity is connected by a linear function (Figures 10,11). Metrological traceability of the set viscosity value to the primary standard is ensured, the kinematic viscosity of pure water at 20 °C (ITS-90) η=(1.0034±0.17) % [29][30][31].…”

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

Kinematic viscosity of liquid media and providing metrological observability of experimental results

Masharipov

Rakhmatullaev

2023

E3S Web of Conf.

View full text Add to dashboard Cite

The subject of this study is to explore modern methods for control of dynamic and kinematic viscosity of liquid media, the state of its metrological support in the republic as well as to see findings from the experiments to ensure metrological control in the International System of Units. The results from this study are found relevant for wide use in agricultural and food products, biologically active additives in assessing quality and safety, metrology. It is also considered relevant in connection with the wide use of viscosity measuring tools in the oil- and fuel industry, medicine, cosmetology, geological and construction and other industries, to evaluate the quality and safety of products, control technological processes at production sites. Scientific and practical recommendations and decisions on improvement of scientific, technical, organizational and regulatory framework of metrological provision of viscometers in the field of ensuring uniformity of measurements and its practical solutions. The findings from the study can be applied with metrological services. Based on the results of the research, metrological examination of various scientific, theoretical and functional viscometers, final conclusions were developed.

show abstract

Section: Resultsmentioning

confidence: 99%

“…Uzbekistan is a member of the COMET regional metrology organization. One of the main quality and safety indicators is kinematic viscosity [9][10][11][12][13][14][15].…”

Section: Main Partmentioning

confidence: 99%

Kinematic viscosity of liquid media and providing metrological observability of experimental results

Masharipov

Rakhmatullaev

2023

E3S Web of Conf.

View full text Add to dashboard Cite

show abstract

“…Currently, according to clause 6.5 of the ISO/IEC 17025:2017 [7,15,16] standard, metrological traceability of the results of measurements carried out in laboratories should be ensured. Accordingly, it is necessary to calibrate the measurements performed in laboratory conditions and to assess the uncertainty of the measurement results.…”

Section: Methodsmentioning

confidence: 99%

Scientific basis and practical application of formalization by making decisions taking into account the uncertainty of the results of gas analyzers in the process of comparison

Mahmudjonov,

Masharipov,

Matyakubova

2024

ITM Web Conf.

View full text Add to dashboard Cite

Abstract. In the work done, the current state of comparison of gas analyzers was studied, and the issue of formalizing the results by making decisions based on the international recommendations of ILAC-G8:09/2019 was studied. The problems arising in the processing of the results of the comparison of gas analyzers are studied, and recommendations are given to consider the risks affecting them. Differences, shortcomings, and advances between benchmarking and calibration are discussed. No need for repeated comparison of calibrated dies, recognition of calibration result during comparison was studied. The difference between measurement uncertainty and error was studied. Making decisions on the basis of international recommendations ILAC-G8:09/2019 in the application of measurement results in the process of comparison of measurement uncertainty. Recommendations are made for establishing a line of defense in decision-making. At the National Institute of Metrology of Uzbekistan, the experimental results were processed and decisions were made based on the international recommendations of ILAC-G8:09/2019. The importance of selection of calibration points in comparison was studied and recommendations were made.

show abstract

“…The basis of the principle of action of capacitive-semiconductor converter of dispersed media humidity is the dependence between the humidity of the measured mediumW and its electro-physical properties, the change in the active and reactive resistance of the transducers depending on the dielectric constant of the wet medium [4][5][6]. The essence of the method is to determine the permittivity of the medium by measuring the active and reactive resistance and energy losses of the electric capacitor, in which the role of the dielectric is played by the media [7][8][9][10].…”

Section: Introductionmentioning

confidence: 99%

“…Graph models of the distributed circuit of the capacitive-semiconductor converter are reduced to the transition from complex differential and integral equations to the discretization of algebraic relations, describing and displaying unknown values of the quantities that are the nodal element in the distributed circuit of the converter [7][8][9]. When studying and displaying the transformation circuit of the probe capacitance-semiconductor converter based on the graph model, this circuit is conditionally divided into elementary sections х ' , consisting of input and output quantities and parameters, which, in turn, are exposed to external influences of quantities of different physical nature.…”

Section: Introductionmentioning

confidence: 99%

Development of sensitive measuring circuits for measurement of physicochemical parameters and their metrological characteristics

Masharipov

Kudratov²

2023

E3S Web Conf.

View full text Add to dashboard Cite

A sensitive measuring scheme has been developed for capacitive-semiconductor converters of humidity of dispersed media, and basic static characteristics have been obtained depending on the duration of bipolar pulses, providing an increase in accuracy and linearity of the static characteristics. A scientifically based increase in the reliability of the results of chemical analysis and physicochemical measurements, the identification and minimization of their errors are impossible without the use of the foundations of metrology - the science of measurements. At the same time, theoretical metrology is rather closely intertwined with the legislative - a set of state acts and regulatory documents that regulate the rules, requirements and norms that must be guided by when making measurements. Obviously, the more responsible the decision is made on the basis of the measurement results, the more stringent the requirements are imposed on them, the less the measurement results should depend on the subjective opinion of the experimenter. Main provisions of measurement error assessment and principles of uniformity of measurements required for rational performance of physical and chemical measurements and chemical analysis are presented. Regularities of normal and other most common types of random v.e. distribution are considered.

show abstract

Methods for monitoring metrological characteristics of scientific and physical parameters of intelligent sensors in real operating conditions

Cited by 12 publications

References 0 publications

Kinematic viscosity of liquid media and providing metrological observability of experimental results

Kinematic viscosity of liquid media and providing metrological observability of experimental results

Scientific basis and practical application of formalization by making decisions taking into account the uncertainty of the results of gas analyzers in the process of comparison

Development of sensitive measuring circuits for measurement of physicochemical parameters and their metrological characteristics

Contact Info

Product

Resources

About