Pub Date : 2019-05-03DOI: 10.33955/2307-2180(2)2019.28-35
R. Berestov, I. Kravchenko, N. Hots, V. Parakuda
The elements of the system of metrological support for the spectrometry of ionizing ά-, β-, g- radiation as the basis of analysis and control of the content of radionuclides in environmental objects, foodstuffs, soils, analysis of the purity of radionuclide materials in order to detect contaminants of radionuclides, control in the degree of burnout of telescopes, the determination of the content of natural radioactive substances in ore, the natural and man-made radionuclides in living organisms are presente. The analysis of the legislative, normative, scientific, technical and methodical basis of metrological support for spectrometry of ionizing radiation has been carried out. The main problems of applied spectrometry of ionizing ά-, β-, g- radiation are considered, and the state of its normative support is analyzed. The necessity of the creation of new normative and methodical documents for the replacement of abolished for the applied use of spectrometry ά-, β-, g- radiation, systemic measures in the metrological provision of scientific activity in the transition to measurement uncertainty is indicated.
{"title":"Metrology System of Ionizing Spectrometry ά-, β-, γ- Radiation","authors":"R. Berestov, I. Kravchenko, N. Hots, V. Parakuda","doi":"10.33955/2307-2180(2)2019.28-35","DOIUrl":"https://doi.org/10.33955/2307-2180(2)2019.28-35","url":null,"abstract":"The elements of the system of metrological support for the spectrometry of ionizing ά-, β-, g- radiation as the basis of analysis and control of the content of radionuclides in environmental objects, foodstuffs, soils, analysis of the purity of radionuclide materials in order to detect contaminants of radionuclides, control in the degree of burnout of telescopes, the determination of the content of natural radioactive substances in ore, the natural and man-made radionuclides in living organisms are presente. The analysis of the legislative, normative, scientific, technical and methodical basis of metrological support for spectrometry of ionizing radiation has been carried out. The main problems of applied spectrometry of ionizing ά-, β-, g- radiation are considered, and the state of its normative support is analyzed. The necessity of the creation of new normative and methodical documents for the replacement of abolished for the applied use of spectrometry ά-, β-, g- radiation, systemic measures in the metrological provision of scientific activity in the transition to measurement uncertainty is indicated.","PeriodicalId":52864,"journal":{"name":"Metrologiia ta priladi","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-05-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46090845","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-05-03DOI: 10.33955/2307-2180(2)2019.52-56
V. Kovalchuk, L. Kovalenko, M. Smorgh
In this paper, we have discussed in detail the theoretical results using local functional density method in parameterized modification of silicon clusters. One of the main conclusions is that the comparison between theory and experiments shows the possibility of different radiative channels for the recombination in porous silicon. Research results directly affect nanometrology.
{"title":"Nanometrology: optical properties of Si-nanoclusters","authors":"V. Kovalchuk, L. Kovalenko, M. Smorgh","doi":"10.33955/2307-2180(2)2019.52-56","DOIUrl":"https://doi.org/10.33955/2307-2180(2)2019.52-56","url":null,"abstract":"In this paper, we have discussed in detail the theoretical results using local functional density method in parameterized modification of silicon clusters. One of the main conclusions is that the comparison between theory and experiments shows the possibility of different radiative channels for the recombination in porous silicon. Research results directly affect nanometrology.","PeriodicalId":52864,"journal":{"name":"Metrologiia ta priladi","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-05-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48186301","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-05-03DOI: 10.33955/2307-2180(2)2019.22-27
Y. Serikov
Operation of buildings and structures for various purposes is accompanied by an impact on their structural elements, building materials, and a complex of negative factors. These factors include the lifespan, climatic parameters, static and dynamic loads, dustiness, air pollution, etc. Their action worsens the physico-mechanical characteristics, the structure of concrete. This reduces the reliability of structural elements, reduces the life of the construction object. In DBN V. 1.2-14-2009 «The system of ensuring the reliability and safety of construction objects» set the classification of construction objects by classes of consequences in the event of an accident. The estimated lifetimes of each type of construction objects are also determined. Extension of life is allowed only after inspection and evaluation of the technical condition of the construction object, material characteristics, through the determination of the degree of their compliance with regulatory requirements. The importance of obtaining reliable survey results requires the improvement of relevant instruments and metrology. The described developed system of monitoring of construction objects, as well as instrumentation and system based on the ultrasonic pulse method. They are designed to control the physico-mecha-nical characteristics, the structure of concrete and other building materials. The developed devices and system are characterized by increased accuracy, reliability and reliability of measurements.
{"title":"Development of Devices for the System of Monitoring the Strength Features of Concrete in Operated Buildings and Structures Based on the Ultrasonic Pulse Method","authors":"Y. Serikov","doi":"10.33955/2307-2180(2)2019.22-27","DOIUrl":"https://doi.org/10.33955/2307-2180(2)2019.22-27","url":null,"abstract":" \u0000Operation of buildings and structures for various purposes is accompanied by an impact on their structural elements, building materials, and a complex of negative factors. These factors include the lifespan, climatic parameters, static and dynamic loads, dustiness, air pollution, etc. Their action worsens the physico-mechanical characteristics, the structure of concrete. This reduces the reliability of structural elements, reduces the life of the construction object. In DBN V. 1.2-14-2009 «The system of ensuring the reliability and safety of construction objects» set the classification of construction objects by classes of consequences in the event of an accident. The estimated lifetimes of each type of construction objects are also determined. Extension of life is allowed only after inspection and evaluation of the technical condition of the construction object, material characteristics, through the determination of the degree of their compliance with regulatory requirements. The importance of obtaining reliable survey results requires the improvement of relevant instruments and metrology. The described developed system of monitoring of construction objects, as well as instrumentation and system based on the ultrasonic pulse method. They are designed to control the physico-mecha-nical characteristics, the structure of concrete and other building materials. The developed devices and system are characterized by increased accuracy, reliability and reliability of measurements.","PeriodicalId":52864,"journal":{"name":"Metrologiia ta priladi","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-05-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43020829","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-05-03DOI: 10.33955/2307-2180(2)2019.16-21
O. Oliynyk, Y. Taranenko
The article is devoted to the development of an accurate method for determining the frequencies and vibration modes of a resonator of a vibration-frequency sensor by applying an exact simplification of the basic equations of resonant oscillations of a resonator taking into account the rigidity (compliance) of the supports and their location. The deviation of the parameters of the geometry of the resonator from the ideal and the heterogeneity of the material of the resonator affect the metrological characteristics of the vibration frequency sensor. However, existing technologies do not provide the possibility of manufacturing resonators with nominal parameters. The existing numerous algorithms for calculating the frequencies and waveforms of resonators are used to estimate the fundamental frequency of an oscillating system that do not take into account the dynamic characteristics. The accuracy of the oscillation frequency of the resonator depends on the choice of the mode of oscillations, which is sometimes difficult to predict in advance. Practical tasks require performing design work with the required accuracy. The lack of an accurate method for determining the frequencies and modes of vibration of the resonator of the vibration-frequency sensor, which would take into account the type of mounting and location of resistance, designers have to adapt existing approaches and calculation models to specific measurement conditions. Therefore, in practice, simplified and approximate methods of calculation are used. In the presence of concentrated masses and in the case of taking into account energy dissipation in the places where the resonator is fixed, the calculation methods become more laborious. In some cases, the possibility of a mathematical interpretation of a task becomes feasible only if some simplifications are introduced into the calculation.
{"title":"The Method of Accurate Determination of Frequencies and Modes of Vibration of the Resonator of the Vibration Frequency Sensor","authors":"O. Oliynyk, Y. Taranenko","doi":"10.33955/2307-2180(2)2019.16-21","DOIUrl":"https://doi.org/10.33955/2307-2180(2)2019.16-21","url":null,"abstract":"The article is devoted to the development of an accurate method for determining the frequencies and vibration modes of a resonator of a vibration-frequency sensor by applying an exact simplification of the basic equations of resonant oscillations of a resonator taking into account the rigidity (compliance) of the supports and their location. The deviation of the parameters of the geometry of the resonator from the ideal and the heterogeneity of the material of the resonator affect the metrological characteristics of the vibration frequency sensor. However, existing technologies do not provide the possibility of manufacturing resonators with nominal parameters. The existing numerous algorithms for calculating the frequencies and waveforms of resonators are used to estimate the fundamental frequency of an oscillating system that do not take into account the dynamic characteristics. The accuracy of the oscillation frequency of the resonator depends on the choice of the mode of oscillations, which is sometimes difficult to predict in advance. \u0000Practical tasks require performing design work with the required accuracy. The lack of an accurate method for determining the frequencies and modes of vibration of the resonator of the vibration-frequency sensor, which would take into account the type of mounting and location of resistance, designers have to adapt existing approaches and calculation models to specific measurement conditions. Therefore, in practice, simplified and approximate methods of calculation are used. In the presence of concentrated masses and in the case of taking into account energy dissipation in the places where the resonator is fixed, the calculation methods become more laborious. In some cases, the possibility of a mathematical interpretation of a task becomes feasible only if some simplifications are introduced into the calculation.","PeriodicalId":52864,"journal":{"name":"Metrologiia ta priladi","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-05-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42645193","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-05-03DOI: 10.33955/2307-2180(2)2019.67-72
L. Nazarenko, H. Kononenko, Т. Mozharovska, V. Chernets
The article reveals the question of achieving security for people on the streets at night with the help of artificial lighting. The author analyzed the factors affecting traffic safety and the possibility of creating the necessary visual conditions for this by means of street lighting. In addition, the article raised an important question regarding the characteristics of the roadway. It is noted that the modern pavement is not standardized on the lighting characteristics. Knowing the spectral characteristics of the applied light sources, these data could be applied in the development of new types of canvases that would allow achieving a new level of illumination in terms of both improving the quality and its efficiency and economy. Without this, it is impossible to talk about the maximum efficiency of the use of the luminous flux as a whole. For existing lighting systems, the brightness calculation is performed by measuring the illumination and reflectivity of the road surface. The obtained brightness values are entered into the mesopic photometric system in order to determine the parameters of the complete system, which provides equivalent visual perception of the illuminated objects and is intended to replace the existing installation. To determine the required lamp power when replacing existing luminaires, it is recommended to use a mesopic photometric system, which allows you to perform calculations taking into account the S/P ratios. In this regard, it is necessary to thoroughly review the computer programs used in the creation of the lighting project, as well as to ensure active participation in international cooperation in the formation of modern lighting standards.
{"title":"Mesopic Photometry and Street Lighting","authors":"L. Nazarenko, H. Kononenko, Т. Mozharovska, V. Chernets","doi":"10.33955/2307-2180(2)2019.67-72","DOIUrl":"https://doi.org/10.33955/2307-2180(2)2019.67-72","url":null,"abstract":"The article reveals the question of achieving security for people on the streets at night with the help of artificial lighting. The author analyzed the factors affecting traffic safety and the possibility of creating the necessary visual conditions for this by means of street lighting. In addition, the article raised an important question regarding the characteristics of the roadway. It is noted that the modern pavement is not standardized on the lighting characteristics. Knowing the spectral characteristics of the applied light sources, these data could be applied in the development of new types of canvases that would allow achieving a new level of illumination in terms of both improving the quality and its efficiency and economy. Without this, it is impossible to talk about the maximum efficiency of the use of the luminous flux as a whole. For existing lighting systems, the brightness calculation is performed by measuring the illumination and reflectivity of the road surface. The obtained brightness values are entered into the mesopic photometric system in order to determine the parameters of the complete system, which provides equivalent visual perception of the illuminated objects and is intended to replace the existing installation. To determine the required lamp power when replacing existing luminaires, it is recommended to use a mesopic photometric system, which allows you to perform calculations taking into account the S/P ratios. In this regard, it is necessary to thoroughly review the computer programs used in the creation of the lighting project, as well as to ensure active participation in international cooperation in the formation of modern lighting standards.","PeriodicalId":52864,"journal":{"name":"Metrologiia ta priladi","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-05-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48972853","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-05-03DOI: 10.33955/2307-2180(2)2019.3-10
N. N. Sirenko, B. Gorkunov, S. Lvov, A. N. Saliba
This study proposes the device for indirect measurement of magnetic induction, with the given value of magnetic field strength, in electrotechnical steel samples of complex form with application of two permeameters. The testing of enclosed form samples requires preliminary labor-intensive coiling of magnetization and measuring windings, which is not suitable for automation of express testing. Express testing of products from electrotechnical steels is usually related to the measurement of not absolute values, but the values of deviation, taking into account the sign of the selected conventional «standard» value. Therefore, for such measurements implementation it is necessary to apply methods of comparison with the measure. The most suitable for this purpose is a differential measurement method. Comparing the increase of accuracy of testing in comparison with analogues, the design of a permeameter implies coiling of the measuring winding of four sections and their placement on the magnetic circuit on both sides of the zones of contact with the controlled pro-duct.Besides that, the windings in each pair of sections are connected in series, and the pairs of coils themselves — in series in accordance. This allows to measure the voltage on the terminals of the measuring winding, which only depends on the working magnetic flux passing through the cross section of the sample. This does not take into account magnetic dispersion flows from the magnetic circuit, which are sources of errors. This constructive technique achieves one more objective — increasing the sensitivity of the permeameter, which is adjustable since its value depends on the number of turns of the measuring winding. Obtained results allow to solve the problem of automation of the routine magnetic control of products of complex form from thin-sheet electrical steel in conditions of its mass production.
{"title":"Automated Device for Magnetic Control of Products of Complex Forms Made from Electrotechnical Steels","authors":"N. N. Sirenko, B. Gorkunov, S. Lvov, A. N. Saliba","doi":"10.33955/2307-2180(2)2019.3-10","DOIUrl":"https://doi.org/10.33955/2307-2180(2)2019.3-10","url":null,"abstract":"This study proposes the device for indirect measurement of magnetic induction, with the given value of magnetic field strength, in electrotechnical steel samples of complex form with application of two permeameters. The testing of enclosed form samples requires preliminary labor-intensive coiling of magnetization and measuring windings, which is not suitable for automation of express testing. Express testing of products from electrotechnical steels is usually related to the measurement of not absolute values, but the values of deviation, taking into account the sign of the selected conventional «standard» value. Therefore, for such measurements implementation it is necessary to apply methods of comparison with the measure. The most suitable for this purpose is a differential measurement method. Comparing the increase of accuracy of testing in comparison with analogues, the design of a permeameter implies coiling of the measuring winding of four sections and their placement on the magnetic circuit on both sides of the zones of contact with the controlled pro-duct.Besides that, the windings in each pair of sections are connected in series, and the pairs of coils themselves — in series in accordance. This allows to measure the voltage on the terminals of the measuring winding, which only depends on the working magnetic flux passing through the cross section of the sample. This does not take into account magnetic dispersion flows from the magnetic circuit, which are sources of errors. This constructive technique achieves one more objective — increasing the sensitivity of the permeameter, which is adjustable since its value depends on the number of turns of the measuring winding. Obtained results allow to solve the problem of automation of the routine magnetic control of products of complex form from thin-sheet electrical steel in conditions of its mass production.","PeriodicalId":52864,"journal":{"name":"Metrologiia ta priladi","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-05-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44021230","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-04-09DOI: 10.33955/2307-2180(3)2018.36-40
G. Leonov, A. Demchenko, O. Tsiporenko
The results of studies of metrological characteristics of the reference silo-reproducing machine OSM2-100-5 and international comparisons of reproducible values of force by power-reproducing installations are presented.
介绍了OSM2-100-5型参考料仓再生机的计量特性研究结果，以及功率再生装置再生力值的国际比较。
{"title":"Investigation of Lever Amplification of Force Standard Machine ОСМ2-100-5","authors":"G. Leonov, A. Demchenko, O. Tsiporenko","doi":"10.33955/2307-2180(3)2018.36-40","DOIUrl":"https://doi.org/10.33955/2307-2180(3)2018.36-40","url":null,"abstract":"The results of studies of metrological characteristics of the reference silo-reproducing machine OSM2-100-5 and international comparisons of reproducible values of force by power-reproducing installations are presented.","PeriodicalId":52864,"journal":{"name":"Metrologiia ta priladi","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44191754","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-03-25DOI: 10.33955/2307-2180(1)2019.31-36
D. Ornatskyi, L. Kuzmych, V. Kvasnikov
The simulation of the analog interface circuit based on the measuring amplifier with differential inputs and the ultrasonic scheme and algorithm of non — destructive additive — multiplicative correction have been made. Such schematic of the analog interface reduces the influence of input correlated noise of operational amplifiers and network drives on the «general» resistance. The Fig. 1 shows us the Schematic of the electrical functional analog interface for remote measurement using multiplexer and resistive strain gauges, which contains a measuring chain, a transmitter, the input of which is connected to a DC source through an analog demultiplexer, and the outputs of the measuring chain through the analog multiplexer are connected to the measuring amplifier, and a two-channel analog-digital converter with simultaneous sampling. The measuring chain is made in the form of three resistive current dividers, where one divider is formed by a resistive strain gauge and adjusting resistor, and two others — exemplary resistors. At the Fig. 2 we can see the electric model of the measuring channel in the software Elektronic Workbench. From the analysis of the simulation results it was found that the random additive component of the error would dominate. Since in the simulation of the only random component of the error there is a quantization error, the use of the differential method of measuring the output voltage will significantly improve the metrological characteristics.
{"title":"Simulation of the Analogue Interface for Remote Measurements Using Multiplexer and Resistive Strain Gauges","authors":"D. Ornatskyi, L. Kuzmych, V. Kvasnikov","doi":"10.33955/2307-2180(1)2019.31-36","DOIUrl":"https://doi.org/10.33955/2307-2180(1)2019.31-36","url":null,"abstract":"The simulation of the analog interface circuit based on the measuring amplifier with differential inputs and the ultrasonic scheme and algorithm of non — destructive additive — multiplicative correction have been made. Such schematic of the analog interface reduces the influence of input correlated noise of operational amplifiers and network drives on the «general» resistance. \u0000The Fig. 1 shows us the Schematic of the electrical functional analog interface for remote measurement using multiplexer and resistive strain gauges, which contains a measuring chain, a transmitter, the input of which is connected to a DC source through an analog demultiplexer, and the outputs of the measuring chain through the analog multiplexer are connected to the measuring amplifier, and a two-channel analog-digital converter with simultaneous sampling. The measuring chain is made in the form of three resistive current dividers, where one divider is formed by a resistive strain gauge and adjusting resistor, and two others — exemplary resistors. \u0000At the Fig. 2 we can see the electric model of the measuring channel in the software Elektronic Workbench. \u0000From the analysis of the simulation results it was found that the random additive component of the error would dominate. Since in the simulation of the only random component of the error there is a quantization error, the use of the differential method of measuring the output voltage will significantly improve the metrological characteristics.","PeriodicalId":52864,"journal":{"name":"Metrologiia ta priladi","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46389321","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-03-25DOI: 10.33955/2307-2180(1)2019.25-30
B. Shabashkevich, Y. Dobrovolsky, V. Yuriev
The complex of metrological equipment for metrological researches of measuring equipment is presented. Purpose — measurement of energy illumination in the spectral range of (0,6—25) μm. The complex has an extended range of measurement of energy illumination and minimal errors of their measurement.
{"title":"Metrological Complex for Verification and Calibration Optoelectronic Devices, Sensitive in the Infrared","authors":"B. Shabashkevich, Y. Dobrovolsky, V. Yuriev","doi":"10.33955/2307-2180(1)2019.25-30","DOIUrl":"https://doi.org/10.33955/2307-2180(1)2019.25-30","url":null,"abstract":"The complex of metrological equipment for metrological researches of measuring equipment is presented. Purpose — measurement of energy illumination in the spectral range of (0,6—25) μm. The complex has an extended range of measurement of energy illumination and minimal errors of their measurement.","PeriodicalId":52864,"journal":{"name":"Metrologiia ta priladi","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44147303","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-03-25DOI: 10.33955/2307-2180(1)2019.14-20
D. Surdu
Phase controlled accurate voltage divider creates two coherent AC voltages with calculated magnitude ratio using additional voltages with calculated phase control. Ratio of these voltages is calculated theoretically with high accuracy. Digital-to-analog converters (DAC) are used to create AC additional voltages. Because of it the discreteness of the phase controlled voltage divider is equal to DACs digit divided on two. Modern DAC, depend on their operation speed, usually have 6-16 digits. Consequently, the discreteness of the relative magnitude phase control lies in the range of 3 × 10–2 –3 × 10–5. Discreteness of the DAC phase control only slightly infl uence on the accuracy of the magnitude phase control, so that only discreteness of DAC infl uences on the accuracy of measurement by phase controlled dividers. Report describes the methods of the discreteness uncertainty reduction in voltage dividers with phase control. Two methods of the discreteness uncertainty reduction are discussed. First one use phase controlled dividers only. Other one use mixed both phase and magnitude control. The discreteness uncertainty of both methods is investigated. Possibility of the crea tion of the phase controlled divider with diff erent control low are discussed and analyzed. Decade calibration in both cases is developed and researched.
{"title":"Multi-decade voltage dividers with phase regulation","authors":"D. Surdu","doi":"10.33955/2307-2180(1)2019.14-20","DOIUrl":"https://doi.org/10.33955/2307-2180(1)2019.14-20","url":null,"abstract":"Phase controlled accurate voltage divider creates two coherent AC voltages with calculated magnitude ratio using additional voltages with calculated phase control. Ratio of these voltages is calculated theoretically with high accuracy. \u0000Digital-to-analog converters (DAC) are used to create AC additional voltages. Because of it the discreteness of the phase controlled voltage divider is equal to DACs digit divided on two. Modern DAC, depend on their operation speed, usually have 6-16 digits. Consequently, the discreteness of the relative magnitude phase control lies in the range of 3 × 10–2 –3 × 10–5. Discreteness of the DAC phase control only slightly infl uence on the accuracy of the magnitude phase control, so that only discreteness of DAC infl uences on the accuracy of measurement by phase controlled dividers. \u0000Report describes the methods of the discreteness uncertainty reduction in voltage dividers with phase control. Two methods of the discreteness uncertainty reduction are discussed. First one use phase controlled dividers only. Other one use mixed both phase and magnitude control. The discreteness uncertainty of both methods is investigated. Possibility of the crea tion of the phase controlled divider with diff erent control low are discussed and analyzed. Decade calibration in both cases is developed and researched.","PeriodicalId":52864,"journal":{"name":"Metrologiia ta priladi","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42144215","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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