Measuring Equipment and Metrology最新文献

{"title":"DETERMINATION OF VOLTAGE CONFORMITY FACTOR IN POWER SUPPLY SYSTEMS","authors":"V. Hudym, S. Yatsyshyn, Dominik Mamcarz","doi":"10.23939/istcmtm2019.03.064","DOIUrl":"https://doi.org/10.23939/istcmtm2019.03.064","url":null,"abstract":"","PeriodicalId":415989,"journal":{"name":"Measuring Equipment and Metrology","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126782589","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}

{"title":"ERRORS OF MEASURING TEMPERATURE WHILE REDUCING LINEAR DIMENSIONS OF LIQUID-IN-TUBE THERMOMETERS","authors":"S. Yatsyshyn, K. Melnyk","doi":"10.23939/ISTCMTM2019.02.049","DOIUrl":"https://doi.org/10.23939/ISTCMTM2019.02.049","url":null,"abstract":". The methodological bases for the study of the systematic error of temperature measurement by liquid-in-tube thermometers and microthermometers with diminution of the capillary diameter, that is, when passing from thermometers to microthermometers, in the field of predominance of gravitational forces over surface tension forces, are given. The existence of components of the systematic total error of temperature measurement with help of such thermometers is established with different thermometric liquids (water, mercury, alcohol). Their relative weight varies depending on the conditions of calibration and application, the peculiarities of manufacturing and used structural materials, their compatibility and wetting. It is shown that the change in the linear dimensions of the thermometers, in particular their reduction in micro size, leads to the strengthening of some components and the weakening of others. The equation of motion of a thermometric fluid in a capillary with a number of parameters is derived. It is shown that the geometry of the inner surface of the capillary can become a determining factor for the formation of the component of the systematic error of the so-called dead passage. The content of the two components of the systematic error due to the deterioration of the conditions of movement of the liquid in the capillary due to changes in its cross section is revealed. The value of the component of the systematic error, determined by the drop in the internal diameter of the capillary due to technological deviations in its manufacture, is estimated at the level of up to 1 %.","PeriodicalId":415989,"journal":{"name":"Measuring Equipment and Metrology","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127904757","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}

{"title":"DATABASE MIGRATION IN CODE-FREE FORMAT","authors":"U. Dzelendzyak, Danylo Nikulshyn, A. Pavelchak, L. Moroz","doi":"10.23939/istcmtm2023.02.034","DOIUrl":"https://doi.org/10.23939/istcmtm2023.02.034","url":null,"abstract":"Database migration is a critical process for businesses that need to maintain their data integrity and functionality as they transition to new technologies or systems [7]. The paper has researched the concept of database migration in a code-free format, including the benefits and challenges of this approach. Code-free migration tools provide an interface that allows users to drag and drop data and automate the migration process. This eliminates the need for manual coding and speeds up the migration process. Code-free solutions also provide users with visual representations of the data, making it easier to understand and manage. However, these tools require careful consideration of data quality and security to ensure that the migration process is successful. The article provides different types of code-free migration tools, including data mapping software and drag-and-drop interfaces, and how they can be used to facilitate the migration process [3]. Best practices are provided for successful code-free database migration, including testing and validation.","PeriodicalId":415989,"journal":{"name":"Measuring Equipment and Metrology","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131376200","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}

{"title":"Calibration of the Ultrasonic Sensor-Range Finder by the Laser Interferometer","authors":"S. Yatsyshyn, I. Nazarkevych, R. Mastylo","doi":"10.23939/istcmtm2020.04.010","DOIUrl":"https://doi.org/10.23939/istcmtm2020.04.010","url":null,"abstract":"Ultrasonic sensors are often used as range finders [1]. Their main disadvantage is the lack of measurement accuracy, as it is due to the negative impact of the environment in which the sound propagates. Parameters and values of characteristics (the main of which is the optical density) can’t be constant and can change during measurements. An important disadvantage is the limitation of the measured distance to values from 3 cm to 40 cm. It should also be noted the following disadvantages of ultrasonic sensors. The surfaces, which are characterized by a porous structure, absorb ultrasound well; therefore, it is difficult to measure the distance to them. If the distance to a surface at an angle to the beam or a spherical surface is to be measured, the obtained results may be inaccurate. The same problems await us when measuring the distance to the wall covered with foam. As result, the errors of such sensors – range finders are accessed as 4 cm for the measured distance 20 cm – 1400 cm [2] error ~20 % for 20 cm) that seems to be insufficient for robot application. These shortcomings require experimenters not only to take into account the above parameters while applying the ultrasonic sensors – range finders but to ensure the metrological unity of measurements with their help as well as to prove the exactness of the studied sensors. The latter can be achieved by developing metrological equipment for calibration of ultrasonic sensors range finders.","PeriodicalId":415989,"journal":{"name":"Measuring Equipment and Metrology","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134452276","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}

{"title":"STUDY OF THE PRIMARY CONVERTER-OBJECT SYSTEM FOR ELECTROCHEMICAL DEVICES","authors":"T. Bubela, V. Yatsuk, T. Fedyshyn, H. Krachunov","doi":"10.23939/istcmtm2021.04.018","DOIUrl":"https://doi.org/10.23939/istcmtm2021.04.018","url":null,"abstract":"The problem of creating electrochemical devices and the issues that arise in the system of the primary converterobject of control are considered. Low-resistance (salt solutions) and high-resistance (sugar solutions) objects were selected as the subject of study. To solve the problem, we have applied the method of impedance spectrum analysis with EIS Spectrum Analyzer software, which performs modeling on the Levenberg-Marquardt algorithm. Substitution schemes in different frequency and concentration ranges of studied objects were synthesized. This enables appropriate corrective action to minimize the impact of adverse events in the system while monitoring the quality of solutions - non-electrical nature objects – by electrochemical devices.","PeriodicalId":415989,"journal":{"name":"Measuring Equipment and Metrology","volume":"111 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134457562","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}

{"title":"STUDIES OF THERMOMETRIC MATERIAL Lu1-xZrxNiSb","authors":"V. Pashkevych, V. Krayovskyy, M. Rokomanyuk, Petro Haranuk, V. Romaka, Y. Stadnyk, L. Romaka, A. Horyn, D. Fruchart","doi":"10.23939/istcmtm2022.01.010","DOIUrl":"https://doi.org/10.23939/istcmtm2022.01.010","url":null,"abstract":"The results of experimental research of perspective thermometric material Lu1-xZrxNiSbwhich can be used for the production of sensitive elements of thermoelectric and electroresistive thermometers are presented. Thermometric materials Lu1-xZrxNiSb, x=0.01–0.10, were made by fusing a charge of components in an electric arc furnace with a tungsten electrode (cathode) in an atmosphere of purified argon under a pressure of 0.1 kPa on a copper water-cooled hearth (anode). Heat treatment of alloys consisted of homogenizing annealing at a temperature of 1073 K. Annealing of samples was carried out for 720 h in vacuumed up to 1.0 Pa ampoules of quartz glass in muffle electric furnaces with temperature control with an accuracy of ±10 K. Diffraction arrays were obtained on a diffractometer DRON-4.0 (FeKα radiation), and the structural characteristics of Lu1-xZrxNiSbwere calculated using the Fullprof program. The chemical and phase compositions of the samples were monitored using a scanning electron microscope (Tescan Vega 3 LMU). The study of the temperature dependences of the resistivity ρ(T,x) and the thermopower coefficientα(T,x) Lu1-xZrxNiSb was performed in the temperature range of 80÷400 K on samples in the form of rectangular parallelepipeds measuring ~1.0×1.0×5.0 mm3 . Measurements of the values of the specific magnetic susceptibility χ(x) of Lu1-xZrxNiSb samples were performed by the relative Faraday method at a temperature of 273 K using a thermogravimetric installation with an electronic microbalance EM-5-ZMP in magnetic fields up to 10 kGs. Microprobe analysis of the concentration of atoms on the surface of Lu1-xZrxNiSb samples, x=0.01–0.10, established their correspondence to the initial compositions of the charge, and X-ray phase analysis showed no traces of extraneous phases on the sample diffractograms, except for the main phase. The nonmonotonic nature of the change in the values of the unit cell period of the thermometric material an (x) Lu1-xZrxNiSb, x=0.01–0.10, which differs from the results of modeling structural characteristics using software packages AkaiKKR and Elk. The nonmonotonic change in the values of the period of the unit cell a(x) Lu1-xZrxNiSband the presence of the extremum dependence suggests that the impurity Zr atoms introduced into the matrix of the LuNiSb basic semiconductor can simultaneously occupy partially different crystallographic positions in different ratios. The temperature resistivities ρ and the thermopower coefficientα of the LuNiSb base semiconductor contain high- and lowtemperature activation regions, which is characteristic of doped and compensated semiconductors. The introduction into the LuNiSb structure of the lowest concentration of impurity Zr atoms in the experiment (x=0.01) radically changes both the behavior of the temperature dependences of the resistivity ρ and the thermopower coefficientα and the type of the main electric current carriers. The values of the resistivity ρ(T,x) Lu1-xZrxNiSbonly","PeriodicalId":415989,"journal":{"name":"Measuring Equipment and Metrology","volume":"130 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130066517","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}

{"title":"MEDICAL REHABILITATION GONIOMETRICAL SYSTEM","authors":"M. Tykhan, V. Markovych, Vitalii Generalov","doi":"10.23939/istcmtm2023.02.011","DOIUrl":"https://doi.org/10.23939/istcmtm2023.02.011","url":null,"abstract":"Physiological rehabilitation is applied in medical practice to restore a person's functional ability after musculoskeletal injuries. Movements in the joints are the main functional indicator of the activity of the organs of support and movement. The paper considers a resistive goniometric sensor in the form of a ball joint. Based on such a sensor, a medical rehabilitation goniometric system is developed. It includes also a data collection device (autonomous data recorder) and a portable modem. That is why the system works autonomously in real-time and transmits data over a distance. This allows the system to be mobile and control joint mobility without the direct involvement of a doctor.","PeriodicalId":415989,"journal":{"name":"Measuring Equipment and Metrology","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130489332","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}

{"title":"KEY REGIONAL COMPARISON COOMET.AUV.A-K5. ANALYSIS OF THE RESULTS","authors":"Oleksandr Kosterov, V. Parakuda","doi":"10.23939/ISTCMTM2019.02.073","DOIUrl":"https://doi.org/10.23939/ISTCMTM2019.02.073","url":null,"abstract":"","PeriodicalId":415989,"journal":{"name":"Measuring Equipment and Metrology","volume":"183 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127029172","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}

{"title":"ACOUSTIC THERMOMETRY OF TEMPERATURE DISTRIBUTION IN FUEL RODS AT THE DESIGN STAGE","authors":"Yaroslav Lutsyk, I. Likhnovsky, A. Riznyk, A. Szlachta","doi":"10.23939/istcmtm2022.01.024","DOIUrl":"https://doi.org/10.23939/istcmtm2022.01.024","url":null,"abstract":"At the stage of design and testing of fuel rods for reactors that must operate in complex temperature and mechanical conditions, it is important to establish the maximum allowable temperature regimes, in particular the temperature distribution along the fuel rods. An ultrasonic control seems to be one of the possible non-destructive methods for assessing product quality. We consider the ultrasonic devices to monitor operational temperature modes of fuel rods and can propose the pulsed multi-zone thermometers as the optimal type.","PeriodicalId":415989,"journal":{"name":"Measuring Equipment and Metrology","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128583397","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}

{"title":"EUROPEAN AND INTERNATIONAL principles FOR QUALITY MANAGEMENT IN EDUCATION USING INTELLIGENT TECHNOLOGIES","authors":"Alla Ivanyshyn","doi":"10.23939/istcmtm2023.01.048","DOIUrl":"https://doi.org/10.23939/istcmtm2023.01.048","url":null,"abstract":"The article compares the international and European requirements for institutions of higher education. General international principles of quality management were also considered and adapted to institutions of higher education. The main requirements for the quality management system (QMS) of a higher education institution (HEI) following international and European standards,) as well as the advantages and main requirements for the implementation of the quality management of educational services, as a tool for managing the processes of providing educational services and improving their quality.","PeriodicalId":415989,"journal":{"name":"Measuring Equipment and Metrology","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128792872","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}