Pub Date : 2021-09-07DOI: 10.1109/MMA52675.2021.9610859
G. Milushev
This paper introduces the concept of duality when it comes to the measurement process and measurement result. This concept simplifies the existing framework significantly by clearly specifying the existing elements of the measurement process, and how they affect the uncertainty of the measurement result. Since the measurement result and its corresponding uncertainty are a product of the non-excluded errors in the measurement process, it reasonably follows that the measurement result cannot be an element of the process. This notion is useful for retrieving and analyzing the sources of uncertainty as components of combined uncertainty (and respectively expanded uncertainty) in the presentation of the final result.
{"title":"A Concept of Measurement Process-Result Duality in the Context of Measurement Uncertainty","authors":"G. Milushev","doi":"10.1109/MMA52675.2021.9610859","DOIUrl":"https://doi.org/10.1109/MMA52675.2021.9610859","url":null,"abstract":"This paper introduces the concept of duality when it comes to the measurement process and measurement result. This concept simplifies the existing framework significantly by clearly specifying the existing elements of the measurement process, and how they affect the uncertainty of the measurement result. Since the measurement result and its corresponding uncertainty are a product of the non-excluded errors in the measurement process, it reasonably follows that the measurement result cannot be an element of the process. This notion is useful for retrieving and analyzing the sources of uncertainty as components of combined uncertainty (and respectively expanded uncertainty) in the presentation of the final result.","PeriodicalId":287017,"journal":{"name":"2021 XXXI International Scientific Symposium Metrology and Metrology Assurance (MMA)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131922886","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 : 2021-09-07DOI: 10.1109/MMA52675.2021.9610917
H. Radev, D. Diakov, H. Nikolova, R. Miteva, V. Vassilev
The assessment of metrological and operational characteristics of measuring systems are of the main importance. The subject of this paper are the results of the accuracy characteristics study of the developed dual-channel laser measuring system for measuring the centering and angular orientation of flat surfaces.
{"title":"Dual-channel Laser Measuring system Study","authors":"H. Radev, D. Diakov, H. Nikolova, R. Miteva, V. Vassilev","doi":"10.1109/MMA52675.2021.9610917","DOIUrl":"https://doi.org/10.1109/MMA52675.2021.9610917","url":null,"abstract":"The assessment of metrological and operational characteristics of measuring systems are of the main importance. The subject of this paper are the results of the accuracy characteristics study of the developed dual-channel laser measuring system for measuring the centering and angular orientation of flat surfaces.","PeriodicalId":287017,"journal":{"name":"2021 XXXI International Scientific Symposium Metrology and Metrology Assurance (MMA)","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123678770","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 : 2021-09-07DOI: 10.1109/MMA52675.2021.9610920
I. Klyuchnyk, A. Bondarenko, Pavlo Galkin, L. Golovkina, Yuriy Khoroshaylo, V. Shtanko, N. Kravets
A feature of thermal converters based on the pyroelectric effect is their reaction exclusively to a change in the intensity of the radiation flux incident on them. Therefore, for many applications of pyroconverters, the key point is their dynamic characteristics, which are estimated from the transient processes of pyrodetectors. On the basis of a mathematical model of a pyroelectric converter, a simulator of its temporal characteristics has been developed, which makes it possible to study the transient processes of both designed pyrodetectors and, if necessary, determine the parameters of already manufactured products.
{"title":"Response-time of Pyroelectric Detector Simulator","authors":"I. Klyuchnyk, A. Bondarenko, Pavlo Galkin, L. Golovkina, Yuriy Khoroshaylo, V. Shtanko, N. Kravets","doi":"10.1109/MMA52675.2021.9610920","DOIUrl":"https://doi.org/10.1109/MMA52675.2021.9610920","url":null,"abstract":"A feature of thermal converters based on the pyroelectric effect is their reaction exclusively to a change in the intensity of the radiation flux incident on them. Therefore, for many applications of pyroconverters, the key point is their dynamic characteristics, which are estimated from the transient processes of pyrodetectors. On the basis of a mathematical model of a pyroelectric converter, a simulator of its temporal characteristics has been developed, which makes it possible to study the transient processes of both designed pyrodetectors and, if necessary, determine the parameters of already manufactured products.","PeriodicalId":287017,"journal":{"name":"2021 XXXI International Scientific Symposium Metrology and Metrology Assurance (MMA)","volume":"55 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124632630","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 : 2021-09-07DOI: 10.1109/MMA52675.2021.9610853
P. Tzvetkov, K. Galabov
An approach for calibrating of the AC voltage of True RMS voltmeters is proposed, using reference square waveform signals instead of the traditionally used harmonic (sinusoidal) signal. A computer-based automation system and an algorithm for calibration of True RMS voltmeters have been implemented.The algorithm performs the sequence of operations for control of the reference calibrator Metrix CX1651 and the calibrated True RMS voltmeter PICOTEST M3500A, setting reference voltage values from the calibrator, performing multiple measurements at the calibration point, extracting measured results and extracting the measured results to obtain an estimate of the actual value of the measured voltage values and an estimate of the extended uncertainty at the calibration point. Based on the results of calibrations, the two approaches were analyzed and compared, which proved their equivalence.
{"title":"True RMS voltmeter calibration by reference square waveform signal and algorithm for measurement and processing of results","authors":"P. Tzvetkov, K. Galabov","doi":"10.1109/MMA52675.2021.9610853","DOIUrl":"https://doi.org/10.1109/MMA52675.2021.9610853","url":null,"abstract":"An approach for calibrating of the AC voltage of True RMS voltmeters is proposed, using reference square waveform signals instead of the traditionally used harmonic (sinusoidal) signal. A computer-based automation system and an algorithm for calibration of True RMS voltmeters have been implemented.The algorithm performs the sequence of operations for control of the reference calibrator Metrix CX1651 and the calibrated True RMS voltmeter PICOTEST M3500A, setting reference voltage values from the calibrator, performing multiple measurements at the calibration point, extracting measured results and extracting the measured results to obtain an estimate of the actual value of the measured voltage values and an estimate of the extended uncertainty at the calibration point. Based on the results of calibrations, the two approaches were analyzed and compared, which proved their equivalence.","PeriodicalId":287017,"journal":{"name":"2021 XXXI International Scientific Symposium Metrology and Metrology Assurance (MMA)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131180459","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 : 2021-09-07DOI: 10.1109/MMA52675.2021.9610855
D. Dichev, D. Diakov, Ralitza Dicheva, I. Zhelezarov, O. Kupriyanov
This paper presents the results of the analysis of the influence of instrumental and methodical errors on the accuracy of instruments for measuring parameters of moving objects. The analysis is based on a new method for examining those errors which allows the static measurement mode to be considered as a separate measuring procedure. Based on that method there have been derived mathematical models for determining and investigating the probabilistic characteristics of the instrumental error of measuring instruments, whose output signal is quantized in value. In addition, the paper presents the results from experimental investigation of the methodical and instrumental components of an instrument for measuring ship pitch.
{"title":"Analysis of instrumental errors influence on the accuracy of instruments for measuring parameters of moving objects","authors":"D. Dichev, D. Diakov, Ralitza Dicheva, I. Zhelezarov, O. Kupriyanov","doi":"10.1109/MMA52675.2021.9610855","DOIUrl":"https://doi.org/10.1109/MMA52675.2021.9610855","url":null,"abstract":"This paper presents the results of the analysis of the influence of instrumental and methodical errors on the accuracy of instruments for measuring parameters of moving objects. The analysis is based on a new method for examining those errors which allows the static measurement mode to be considered as a separate measuring procedure. Based on that method there have been derived mathematical models for determining and investigating the probabilistic characteristics of the instrumental error of measuring instruments, whose output signal is quantized in value. In addition, the paper presents the results from experimental investigation of the methodical and instrumental components of an instrument for measuring ship pitch.","PeriodicalId":287017,"journal":{"name":"2021 XXXI International Scientific Symposium Metrology and Metrology Assurance (MMA)","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128358778","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 : 2021-09-07DOI: 10.1109/MMA52675.2021.9610838
A. Serov, K. A. Ivanenko, N. Serov
Among the digital methods for frequency measurement in electrical power systems the method based on zero crossings of the input signal (zero crossing technique) is the most popular. This method is easy to implement and characterizes a high measurement accuracy. The main reason for the error is the influence of input noise. One way to improve measurement accuracy is application of a digital filter. This paper is devoted to the application of a sliding discrete Fourier transform (DFT) as an input bandpass filter. This approach allows to effectively suppress noise and non-fundamental spectral components of the signal, which increase the sensitivity of the measurement method to input noise. An approach to the implementation of the sliding DFT (based on the direct implementation of the real part of the DFT) is proposed, which significantly reduces its complexity in the problem being solved. A method is proposed to reduce the spectrum leakage effect, which makes it possible to increase the frequency measurement accuracy. Dependencies are obtained empirically, which make it possible to estimate the frequency measurement error for a given input noise level and parameters of applied filter (sliding DFT). By applying Simulink software package, a simulation model of the considered measurement method and represented modification has been developed. The proposed model makes it possible to estimate the static and dynamic errors of frequency measurement for the input signals of arbitrary form.
{"title":"Application of Sliding DFT Filtration to Improve Frequency Measurement Accuracy of Zero Crossing Technique","authors":"A. Serov, K. A. Ivanenko, N. Serov","doi":"10.1109/MMA52675.2021.9610838","DOIUrl":"https://doi.org/10.1109/MMA52675.2021.9610838","url":null,"abstract":"Among the digital methods for frequency measurement in electrical power systems the method based on zero crossings of the input signal (zero crossing technique) is the most popular. This method is easy to implement and characterizes a high measurement accuracy. The main reason for the error is the influence of input noise. One way to improve measurement accuracy is application of a digital filter. This paper is devoted to the application of a sliding discrete Fourier transform (DFT) as an input bandpass filter. This approach allows to effectively suppress noise and non-fundamental spectral components of the signal, which increase the sensitivity of the measurement method to input noise. An approach to the implementation of the sliding DFT (based on the direct implementation of the real part of the DFT) is proposed, which significantly reduces its complexity in the problem being solved. A method is proposed to reduce the spectrum leakage effect, which makes it possible to increase the frequency measurement accuracy. Dependencies are obtained empirically, which make it possible to estimate the frequency measurement error for a given input noise level and parameters of applied filter (sliding DFT). By applying Simulink software package, a simulation model of the considered measurement method and represented modification has been developed. The proposed model makes it possible to estimate the static and dynamic errors of frequency measurement for the input signals of arbitrary form.","PeriodicalId":287017,"journal":{"name":"2021 XXXI International Scientific Symposium Metrology and Metrology Assurance (MMA)","volume":"101 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116371530","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 : 2021-09-07DOI: 10.1109/MMA52675.2021.9610856
A. Serov, N. Serov, Alexander R. Senchenko
Frequency measurement is one of the most important tasks in measurement technique today. The method based on quadrature demodulation is widely used to measure frequency of the electric power networks. The frequency measurement error by using this method contains two components: instrumental (associated with the imperfection of the used chips) and methodical (associated with the applied measurement method). The instrumental component associated with used chips imperfection (primarily the analog-to-digital converter – ADC) is discussed in this paper. The additive, multiplicative components error components nonlinearity and quantization error are considered. It is shown that the additive and multiplicative components practically do not affect to the frequency measurement error by the method under consideration. Particular attention is paid to ADC nonlinearity, since for most ADCs it prevails over quantization error and cannot be compensated for by approaches such as zero adjusting and calibration. To represent nonlinearity, the “worst case” method, approximation by polynomial functions, and representation of nonlinearity as random (stochastic) function are considered. Analytical expressions were obtained for estimating the frequency measurement error by the quadrature demodulation technique when it is represented by the discussed approaches. It is shown that the largest error occurs for nonlinearity, which form is close to pseudorandom. A simulation model of frequency measurement by this method was designed by Matlab and Simulink software packages, taking into account the considered ADC imperfections.
{"title":"Influence of the ADC Errors on the Frequency Measurement Error for the Case of Applying of the Quadrature Demodulation Technique","authors":"A. Serov, N. Serov, Alexander R. Senchenko","doi":"10.1109/MMA52675.2021.9610856","DOIUrl":"https://doi.org/10.1109/MMA52675.2021.9610856","url":null,"abstract":"Frequency measurement is one of the most important tasks in measurement technique today. The method based on quadrature demodulation is widely used to measure frequency of the electric power networks. The frequency measurement error by using this method contains two components: instrumental (associated with the imperfection of the used chips) and methodical (associated with the applied measurement method). The instrumental component associated with used chips imperfection (primarily the analog-to-digital converter – ADC) is discussed in this paper. The additive, multiplicative components error components nonlinearity and quantization error are considered. It is shown that the additive and multiplicative components practically do not affect to the frequency measurement error by the method under consideration. Particular attention is paid to ADC nonlinearity, since for most ADCs it prevails over quantization error and cannot be compensated for by approaches such as zero adjusting and calibration. To represent nonlinearity, the “worst case” method, approximation by polynomial functions, and representation of nonlinearity as random (stochastic) function are considered. Analytical expressions were obtained for estimating the frequency measurement error by the quadrature demodulation technique when it is represented by the discussed approaches. It is shown that the largest error occurs for nonlinearity, which form is close to pseudorandom. A simulation model of frequency measurement by this method was designed by Matlab and Simulink software packages, taking into account the considered ADC imperfections.","PeriodicalId":287017,"journal":{"name":"2021 XXXI International Scientific Symposium Metrology and Metrology Assurance (MMA)","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125970462","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 : 2021-09-07DOI: 10.1109/MMA52675.2021.9610942
Bozhidar Dzhudzhev, N. Stoyanov, A. Pandelova
This report presents software optimization of the GW Instek AFG-2005 functional generator by providing functionality to it to perform control on vibration impact system. The generator is controlled via the LabVIEW software environment. The difficulties that arose during the optimization and their solution are presented.
{"title":"Functional Generator Software Optimization Through Virtual Instruments","authors":"Bozhidar Dzhudzhev, N. Stoyanov, A. Pandelova","doi":"10.1109/MMA52675.2021.9610942","DOIUrl":"https://doi.org/10.1109/MMA52675.2021.9610942","url":null,"abstract":"This report presents software optimization of the GW Instek AFG-2005 functional generator by providing functionality to it to perform control on vibration impact system. The generator is controlled via the LabVIEW software environment. The difficulties that arose during the optimization and their solution are presented.","PeriodicalId":287017,"journal":{"name":"2021 XXXI International Scientific Symposium Metrology and Metrology Assurance (MMA)","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131397423","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 : 2021-09-07DOI: 10.1109/MMA52675.2021.9610932
Khoroshajlo Yurij Evgenievich, Sova Anna Vasilievna, Paltsev Oleh Olehovych, Yarmak Ivan Nikolaevich, Menyajlo Aleksandr Dmitrievich, Svetlichnij Vitalij Anatolievich, Gnidenko Yurij Petrovich, Sezonova Irina Konstantinovna, Gusak Oleksiy Andriyovich
A device is proposed for measuring color characteristics, which, using a measuring transducer, assigns to each radiation three signals proportional to color coordinates. Existing devices have many drawbacks, among them low speed, due to the use of inert elements, which makes it impossible to measure rapidly changing light fluxes. In this device, the authors tried to minimize the shortcomings. Also in this article, a mathematical model of the device is proposed. Attention is paid to the psychophysiological perception of color.
{"title":"Using the colorimetric method to control biological objects","authors":"Khoroshajlo Yurij Evgenievich, Sova Anna Vasilievna, Paltsev Oleh Olehovych, Yarmak Ivan Nikolaevich, Menyajlo Aleksandr Dmitrievich, Svetlichnij Vitalij Anatolievich, Gnidenko Yurij Petrovich, Sezonova Irina Konstantinovna, Gusak Oleksiy Andriyovich","doi":"10.1109/MMA52675.2021.9610932","DOIUrl":"https://doi.org/10.1109/MMA52675.2021.9610932","url":null,"abstract":"A device is proposed for measuring color characteristics, which, using a measuring transducer, assigns to each radiation three signals proportional to color coordinates. Existing devices have many drawbacks, among them low speed, due to the use of inert elements, which makes it impossible to measure rapidly changing light fluxes. In this device, the authors tried to minimize the shortcomings. Also in this article, a mathematical model of the device is proposed. Attention is paid to the psychophysiological perception of color.","PeriodicalId":287017,"journal":{"name":"2021 XXXI International Scientific Symposium Metrology and Metrology Assurance (MMA)","volume":"254 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134476619","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 : 2021-09-07DOI: 10.1109/MMA52675.2021.9610893
D. Diakov
In many cases, the installation and operation of high-tech equipment often requires centering and adjustment of objects or parts with flat surfaces and respectively to control their mutual location. This paper presents the measurement of the mutual arrangement of flat surfaces placed nominally in one plane by means of a dual-channel laser measuring system.
{"title":"Measurement of Location Deviations of Flat Surfaces","authors":"D. Diakov","doi":"10.1109/MMA52675.2021.9610893","DOIUrl":"https://doi.org/10.1109/MMA52675.2021.9610893","url":null,"abstract":"In many cases, the installation and operation of high-tech equipment often requires centering and adjustment of objects or parts with flat surfaces and respectively to control their mutual location. This paper presents the measurement of the mutual arrangement of flat surfaces placed nominally in one plane by means of a dual-channel laser measuring system.","PeriodicalId":287017,"journal":{"name":"2021 XXXI International Scientific Symposium Metrology and Metrology Assurance (MMA)","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116995059","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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