Metrologiia ta priladi最新文献_第9页

The Method and the Results of the Direct Comparison of the Laser Interferometers Renishaw Xl-80 Renishaw Xl-80激光干涉仪直接比较的方法和结果

Metrologiia ta priladi Pub Date : 2018-08-30 DOI: 10.33955/2307-2180(4)2018.15-21

O. Samoylenko, O. Adamenko, V. Kalynichenko

引用次数: 3

Generalized Comparison of the Results of Evaluation of Experts Competence in the Field of Metrology 计量领域专家能力评价结果的广义比较

Metrologiia ta priladi Pub Date : 2018-08-30 DOI: 10.33955/2307-2180(4)2018.61-66

O. Velychko, T. Gordienko

引用次数: 0

Photometer for Measuring the Characteristics of the Light Source with Directed Light Radiation 测量定向光辐射光源特性的光度计

Metrologiia ta priladi Pub Date : 2018-08-30 DOI: 10.33955/2307-2180(4)2018.27-32

P. Neyezhmakov, E. Tymofeiev, О. Lyashenko

{"title":"Photometer for Measuring the Characteristics of the Light Source with Directed Light Radiation","authors":"P. Neyezhmakov, E. Tymofeiev, О. Lyashenko","doi":"10.33955/2307-2180(4)2018.27-32","DOIUrl":"https://doi.org/10.33955/2307-2180(4)2018.27-32","url":null,"abstract":"The accuracy of the measurement of the main photometric characteristic of the emitter determines the error for determining the total light flux of the light sources, especially light emitting diodes, for which it should not exceed 5 per cent. Existing measurement methods with the use of integrated spheres, goniophotometers and goniophotometers of the near field require a great deal of time and have a great deal of value. To eliminate these shortcomings, a method for measuring the characteristics of light sources with directed light distribution is proposed based on the use of a set of meters located in a plane perpendicular to the main direction of the source radiation propagation. On the basis of this method, a photometer for measuring the characteristics of the directional light sources is developed, which allows to quickly, in real time, determine the characteristics of the emitters. The method of determining the parameters of light distribution of directed sources of light for the construction of its photometric body is not required to use a rotary means. Taking into account the significant influence of temperature fluctuations on the characteristics of LED light sources, it is possible will upgrade the proposed method for determining the photometric body of the radiation source in real time and when the temperature changes due to the introduction of additional elements in the future.","PeriodicalId":52864,"journal":{"name":"Metrologiia ta priladi","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44179541","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}

引用次数: 0

Experimental Studies of an Eddy Current Transducer with Spatially Periodic Fields 空间周期场涡流传感器的实验研究

Metrologiia ta priladi Pub Date : 2018-08-30 DOI: 10.33955/2307-2180(4)2018.45-50

B. Gorkunov, S. Lvov, Tamer Shaiban, Y. Borysenko

{"title":"Experimental Studies of an Eddy Current Transducer with Spatially Periodic Fields","authors":"B. Gorkunov, S. Lvov, Tamer Shaiban, Y. Borysenko","doi":"10.33955/2307-2180(4)2018.45-50","DOIUrl":"https://doi.org/10.33955/2307-2180(4)2018.45-50","url":null,"abstract":"The purpose of this study is to perform a comparative analysis of the experimentally obtained and calculated values of the measuring windings total EMF amplitudes of the eddy current transducer with spatially periodic fields when magnetic and nonmagnetic cylindrical product are placed in it. To realize this goal in the work, a transducer with translational symmetry of excitation magnetic field has been developed. \u0000Translation symmetry typical example is the field of a long current conductor. The paper considers quasi-static electromagnetic field with the wavelength that exceeds characteristic transverse dimensions of conductor and cylinder. \u0000As the study result it is seen a satisfactory coincidence of the calculated and experimentally obtained values of the EMF of the transducer output signal in the cases of the product absence and with variety of products. As for example for measuring windings with angular coordinates φ = 30° and 60° an error of voltage values difference is less than 10%. \u0000The study shows that the advantage of such transducers while operating on one fixed frequency is capability to perform the multi-parameter testing on account of processing of certain amount of some spatial harmonics of excitation field.","PeriodicalId":52864,"journal":{"name":"Metrologiia ta priladi","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48955866","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}

引用次数: 1

Problems of Accuracy of Measurements of Curves on International Transport Corridors of Ukraine 乌克兰国际运输走廊曲线测量精度问题

Metrologiia ta priladi Pub Date : 2018-08-30 DOI: 10.33955/2307-2180(4)2018.56-60

A. Matvienko, A. Shevchenko

引用次数: 0

Photometer for Measuring of Low Light Levels 微光测量光度计

Metrologiia ta priladi Pub Date : 2018-08-30 DOI: 10.33955/2307-2180(4)2018.22-26

B. Shabashkevich, V. Yuriev, Y. Dobrovolsky, I. Doktorovich, E. Shorok

引用次数: 0

Metrological Assurance of Large Torque Measurements 大扭矩测量的计量保证

Metrologiia ta priladi Pub Date : 2018-08-30 DOI: 10.33955/2307-2180(4)2018.41-44

G. Leonov, V. Koval, А. Demchenko

引用次数: 0

Using the pixel information value parameter in an entropy image analysis criterion 在熵图像分析准则中使用像素信息值参数

Metrologiia ta priladi Pub Date : 2018-08-30 DOI: 10.33955/2307-2180(4)2018.67-72

R. Kvyetnyy, A. Olesenko

引用次数: 0

The Study of Trends in the Development of Methods for Implementing the Temperature Scale in the Framework of Improving the State Primary Standard of the Temperature Unit in the Range 1357.7 — 2800 K 在提高1357.7 ~ 2800 K范围内温度单位国家一级标准框架下温标实施方法发展趋势研究

Metrologiia ta priladi Pub Date : 2018-08-30 DOI: 10.33955/2307-2180(4)2018.3-14

R. Sergiienko

引用次数: 0

Interlaboratory Comparisons of Calibration Results of the Measures of Electrical Resistance of Direct Current 直流电阻测量校准结果的实验室间比较

Metrologiia ta priladi Pub Date : 2018-04-26 DOI: 10.33955/2307-2180(2)2018.25-30

O. Velychko, V. Dovgan, D. Nikitenko, Ia. Brezytskyi

{"title":"Interlaboratory Comparisons of Calibration Results of the Measures of Electrical Resistance of Direct Current","authors":"O. Velychko, V. Dovgan, D. Nikitenko, Ia. Brezytskyi","doi":"10.33955/2307-2180(2)2018.25-30","DOIUrl":"https://doi.org/10.33955/2307-2180(2)2018.25-30","url":null,"abstract":"For the accredited calibration laboratories in Ukraine, a second round of inter-laboratory comparisons (ILC) of the results of calibration of electrical resistance measures of direct current was conducted. It is important to conduct such rounds of ILC of results with the involvement of an increasing number of calibration laboratories. This will, accordingly, establish the competence of an increasing number of calibration laboratories, which is quite relevant today. The article presents the results of the first round of ILC of the measures of electric resistance 1 Ohm, 10 Ohm and 100 Ohm on a direct current. As an comparison examples by reference laboratory measurement of electrical resistance of direct current P321 and P331, which were already used in the first round of ILC, were selected. The reference laboratory has research the measures of electrical resistance as a means of comparison, defined the reference values of comparison with the calculation of their extended uncertainties according to the measurement model. The comparison of the results of measurements obtained during the calibration of the measures of electrical resistance of eight laboratories took place according to the radial scheme from 2018 to 2019. The deviations of the results obtained by each laboratory were determined and their correctness was evaluated taking into account the uncertainty of measurements by one of the criteria for performance statistics for the selected electrical resistance ratings. The obtained En values show that for all laboratories participating satisfy the set criterion, except for the result of one laboratory for electrical resistance of 10 Ohms. A comparative analysis of the results of the calibration of resistance measures for laboratories that took part in the first and second rounds was carried out.","PeriodicalId":52864,"journal":{"name":"Metrologiia ta priladi","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48714127","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}

引用次数: 1