Nauki Techniczne

Metrology and Measurement Systems

Zawartość

Metrology and Measurement Systems | 2018 | vol. 25 | No 4 |

Abstrakt

A mode-locked Tm3+-doped fibre laser and amplifier operating at a central wavelength of 1994.3 nm is demonstrated. A thulium oscillator is passively mode-locked by a semiconductor saturable absorber mirror to generate an average power of 17 mW at a fundamental repetition rate of 81 MHz in a short linear cavity. This 2-mm laser train is amplified to an average power to 20.26 W by two double-clad thulium-doped allfibre amplifiers. The pulse energy, duration and peak power is 250 nJ, 23 ps and 9.57 kW, respectively. This represents one of the highest values of average power at  2-mm-wavelength for picosecond thulium-doped fibre lasers and amplifiers. The performance of the laser system is described in details.

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Autorzy i Afiliacje

Paweł Grześ
Maria Michalska
Jacek Świderski

Abstrakt

In the paper there are presented tools for structural modelling of throttle diagrams that are developed as a basis to building transducers used for measuring fluid parameters. The definitions of throttle diagrams are improved and their classification is developed. Dependences are obtained to calculate the number of measuring channels in a throttle diagram and the number of possible variants of measuring transducers using the combinatory apparatus. A procedure for mathematical description of throttle diagrams in the form of graphs is proposed which makes it possible to obtain all diagrams with different measuring channels on the basis of certain throttle diagram. The model is developed in the form of a graph. A schematic diagram and a mathematical model of a transducer measuring physical and mechanical parameters of Bingham plastic fluid are developed based on a throttle diagram.

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Autorzy i Afiliacje

Yevhen Pistun
Halyna Matiko
Hanna Krykh
Fedir Matiko

Abstrakt

A new method of noise generation based on software implementation of a 7-bit LFSR based on a common polynomial PRBS7 using microcontrollers equipped with internal ADCs and DACs and a microcontroller noise generator structure are proposed in the paper. Two software applications implementing the method: written in ANSI C and based on the LUT technique and written in AVR Assembler are also proposed. In the method the ADC results are used to reseed the LFSR after its each full work cycle, what improves randomness of generated data, which results in a greater similarity of the generated random signal to white noise, what was confirmed by the results of experimental research. The noise generator uses only the internal devices of the microcontroller, hence the proposed solution does not introduce hardware redundancy to the system.

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Autorzy i Afiliacje

Zbigniew Czaja
Michał Kowalewski

Abstrakt

Knowledge of gravitational acceleration in metrology is required for traceable force and pressure calibrations, furthermore the redefinition of the SI base unit of kilogram requires absolute accomplishment of the gravitational acceleration. A direct free-fall gravimeter is developed using pneumatic grippers for test mass handling and a semi-rotary actuator for repositioning, i.e. automated re-launching. The catch and release system is powered by compressed air. This eliminates electric interferences around the test mass. A simplified method of signal capturing and processing is used on the designed gravimeter. A digital frequency trigger is implemented in the post processing algorithms to ensure that the signals are analysed from the identical effective height. The experimental results measured the site gravitational acceleration of 9.786043 ms��2 with a statistical uncertainty of 29 ms��2.

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Autorzy i Afiliacje

Tlou Mokobodi
Pieter Greeff
Oelof Kruger
Nicolaas J. Theron
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Abstrakt

This paper presents two methods for evaluation of the effective wavenumber of nearly-Gaussian beams in laser interferometers that can be used for determination of a so called diffraction correction in absolute gravimeters. The first method, that can be simply used in situ, is an empirical procedure based on the evaluation of the variability of g measurements against the amount of light limited by an iris diaphragm and transmitted to a photodetector. However, precision of this method depends on the beam quality similarly as in the case of the conventional method based on measurement of a beam width. The second method, that is more complex, is based on beam profiling in various distances and on calculation of the effective wavenumber using the second spatial derivative of a non-ideal beam field envelope. The measurement results achieved by both methods are presented on an example of two absolute gravimeters and the determined diffraction corrections are compared with the results obtained by measurements of beam width. Agreement of methods within about 1 mGal have been obtained with average diffraction corrections slightly exceeding +2 mGal for three FG5(X) gravimeter configurations.

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Bibliografia

References

[1]Monchalin, J.P., Kelly, M.J., Thomas, J.E., Kurnit, N.A., Szöke, A., Zernike, F., Lee, P.H., Javan, A.(1981). Accurate laser wavelength measurement with a precision two-beam scanning Michelson in-terferometer.Appl Opt., 20(5), 736–57.

[2]Sasso, C.P., Massa, E., and Mana, G. (2016). Diffraction effects in length measurements by laserinterferometry.Optics Express, 24(6), 6522–6531. DOI: 10.1364/OE.24.006522

[3]Niebauer, T.M., Sasagawa, G.S., Faller, J.E., Hilt, R., Klopping, F. (1995). A new generation of abso-lute gravimeters.Metrologia, 32, 159–180.

[4]vanWestrum, D., Niebauer, T.M. (2003). The diffraction correction for absolute gravimeters.Metrologia, 40, 258–263.

[5]Robertsson, L. (2007). On the diffraction correction in absolute gravimetry.Metrologia, 44, 35–39.

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Autorzy i Afiliacje

Petr Křen
Vojtech Pálinkáš

Abstrakt

This paper presents the design, fabrication and testing of an improved thin-film thermal converter based on an electro-thermally excited and piezo-resistively detected micro-bridge resonator. The resonant thermal converter comprises a bifilar heater and an opposing micro-bridge resonator. When the micro-bridge resonator absorbs the radiant heat from the heater, its axial strain changes, then its resonant frequency follows. Therefore the alternating voltage or current can be transferred to the equivalent DC quantity. A non-contact temperature sensing mechanism eliminates heat loss from thermopiles and reduces coupling capacitance between the temperature sensor and the heater compared with traditional thin-film thermal converters based on thermopiles. In addition, the quasi-digital output of the resonant thin-film thermal converter eliminates such problems as intensity fluctuations associated with analogue signals output by traditional thin-film thermal converters. Using the fast-reversed DC (FRDC) method, the thermoelectric transfer difference, which determines the frequency-independent part of the ac-dc transfer difference, is evaluated to be as low as 1:1  10��6. It indicates that the non-contact temperature sensing mechanism is a feasible method to develop a high-performance thermal converter.

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Autorzy i Afiliacje

Lizhen Dong
Jianqiang Han
Peng Zhang
Zhengqian Zhao
Bing Cheng
Dong Han

Abstrakt

The field of mechanical manufacturing is becoming more and more demanding on machining accuracy. It is essential to monitor and compensate the deformation of structural parts of a heavy-duty machine tool. The deformation of the base of a heavy-duty machine tool is an important factor that affects machining accuracy. The base is statically indeterminate and complex in load. It is difficult to reconstruct deformation by traditional methods. A reconstruction algorithm for determining bending deformation of the base of a heavy-duty machine tool using inverse Finite Element Method (iFEM) is presented. The base is equivalent to a multi-span beam which is divided into beam elements with support points as nodes. The deflection polynomial order of each element is analysed. According to the boundary conditions, the deformation compatibility conditions and the strain data measured by Fiber Bragg Grating (FBG), the deflection polynomial coefficients of a beam element are determined. Using the coordinate transformation, the deflection equation of the base is obtained. Both numerical verification and experiment were carried out. The deflection obtained by the reconstruction algorithm using iFEM and the actual deflection measured by laser displacement sensors were compared. The accuracy of the reconstruction algorithm is verified.

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Autorzy i Afiliacje

Mingyao Liu
Xiong Zhang
Han Song
Jingliang Wang
Shiguang Zhou

Abstrakt

Measurement data obtained from Weigh-in-Motion systems support protection of road pavements from the adverse phenomenon of vehicle overloading. For this protection to be effective, WIM systems must be accurate and obtain a certificate of metrological legalization. Unfortunately there is no legal standard for accuracy assessment of Weigh-in-Motion (WIM) systems. Due to the international range of road transport, it is necessary to standardize methods and criteria applied for assessing such systems’ accuracy. In our paper we present two methods of determining accuracy of WIM systems. Both are based on the population of weighing errors determined experimentally during system testing. The first method is called a reliability characteristic and was developed by the authors. The second method is based on determining boundaries of the tolerance interval for weighing errors. Properties of both methods were assessed on the basis of simulation studies as well as experimental results obtained from a 16-sensor WIM system.

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Autorzy i Afiliacje

Piotr Burnos
Janusz Gajda
Ryszard Sroka

Abstrakt

The task of generating fast and accurate three-dimensional (3D) models of objects or scenes through a sequence of non-calibrated images is an active field of research. The recent development in algorithm optimization has resulted in many automatic solutions that can provide an accurate 3D model from texture-full objects. Structure-from-motion (SfM) is an image-based method that uses discriminative point-based feature identifier, such as SIFT, to locate feature points in the images. This method faces difficulties when presented with the objects made of homogenous or texture-less surfaces. To reconstruct such surfaces a well-known technique is to apply an artificial variety by covering the surface with a random texture pattern prior to the image capturing process. In this work, we designed three series of image patterns which are tested based on the contrast and density ratio which increases from the first to the last pattern within the same series. The performance of the patterns is evaluated by reconstructing the surface of a texture-less object and comparing it with the true data. Using the best-found patterns from the experiments, a 3D model of a Moai statue is reconstructed. The experimental results demonstrate that the density and structure of a pattern highly affects the quality of the reconstruction.

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Autorzy i Afiliacje

Jahanzeb Hafeez
Hyoung-Joon Jeon
Alaric Hamacher
Soon-Chul Kwon
Seung-Hyun Lee

Abstrakt

Microwave frequency detectors enable immediate determination of an unknown microwave signal frequency. Measurement is possible if the output characteristic of a frequency detector is unequivocal in a selected band of operation. The paper presents a method for obtaining unequivocal output characteristics for a given band of frequency detector operation.

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Autorzy i Afiliacje

Czesław Rećko
Bronisław Stec

Abstrakt

Terrestrial laser scanning (TLS) is one of the instruments for remote detection of damage of structures (cavities, cracks) which is successfully used to assess technical conditions of building objects. Most of the point clouds analysis from TLS relies only on spatial information (3D–XYZ). This study presents an approach based on using the intensity value as an additional element of information in diagnosing technical conditions of architectural structures. The research has been carried out in laboratory and field conditions. Its results show that the coefficient of laser beam reflectance in TLS can be used as a supplementary source of information to improve detection of defects in constructional objects.

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Autorzy i Afiliacje

Czesław Suchocki
Marcin Jagoda
Romuald Obuchovski
Dominykas Šlikas
Jūratė Sužiedelytė -Visockienė

Abstrakt

A concept of a highly sensitive and fast-response airborne optoelectronic hygrometer, based on the absorption spectroscopy with laser light tuned to an intense ro-vibronic absorption line of H2O in the 1391– 1393 nm range is presented. The target application of this study is airborne atmospheric measurements, in particular at the top of troposphere and in stratosphere. The cavity ring-down spectroscopy was used to achieve high sensitivity. In order to avoid interference of the results by water desorbed from the instrument walls, the open-path solution was applied. Tests of the instrument, performed in a climatic chamber, have shown some advantages of this concept over typical hygrometers designed for similar applications.

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Autorzy i Afiliacje

Tadeusz Stacewicz
Paweł Magryta

Redakcja

Editorial Board

Editor-in-Chief
Ryszard SZPLET
Military University of Technology, Poland
e-mail: ryszard.szplet@wat.edu.pl

Vice Editor-in-Chief
Paweł KWIATKOWSKI
Military University of Technology, Poland
e-mail: pawel.kwiatkowski@wat.edu.pl

Technical Editor and Webmaster

Dominik SONDEJ
Military University of Technology, Poland
e-mail: dominik.sondej@wat.edu.pl

Language Editor

Andrzej ŁUKASZEWICZ
Military University of Technology, Poland
e-mail: andrzej.lukaszewicz@wat.edu.pl


International Programme Committee


Andrzej ZAJĄC,
Chairman Military University of Technology, Poland
Bruno ANDO
University of Catania, Italy
Martin BURGHOFF
Physikalisch-Technische Bundesanstalt, Germany
Marcantonio CATELANI
University of Florence, Italy
Numan DURAKBASA
Vienna University of Technology, Austria
Janusz GAJDA AGH
University of Science and Technology, Poland
Domenico GRIMALDI
University of Calabria, Italy
Laszlo KISH
Texas A&M University, USA
Juha KOSTAMOVAARA
University of Oulu, Finland
Eduard LLOBET
Universitat Rovira i Virgili, Tarragona, Spain
Alex MASON
Liverpool John Moores University, The United Kingdom
Subhas MUKHOPADHYAY
Massey University, Palmerston North, New Zealand
Janusz MROCZKA
Wroclaw University of Science and Technology, Poland
Antoni ROGALSKI
Military University of Technology, Poland
Wiesław WOLIŃSKI
Warsaw University of Technology, Poland

Associate Editors

Sławomir CIĘSZCZYK
Lublin University of Technology, Poland
e-mail: s.cieszczyk@pollub.pl
Albin CZUBLA
Central Office of Measure, Poland
e-mail: albin.czubla@gum.gov.pl
Vladimir DIMCHEV
Ss. Cyril and Methodius University, Macedonia
e-mail: vladim@feit.ukim.edu.mk
Krzysztof DUDA AGH
University of Science and Technology, Poland
e-mail: kduda@agh.edu.pl
Agnieszka IWAN
Military University of Land Forces, Poland
e-mail: agnieszka.iwan@awl.edu.pl
Ireneusz JABŁOŃSKI
Wrocław University of Science and Technology, Poland
e-mail: ireneusz.jablonski@pwr.wroc.pl
Jacek JAKUBOWSKI
Military University of Technology, Poland
e-mail: jacek.jakubowski@wat.edu.pl
Jussi-Pekka JANSSON
University of Oulu, Finland
e-mail: jussi.jansson@oulu.fi
Mieczysław JESSA
Poznan University of Technology, Poland
e-mail: mieczyslaw.jessa@put.poznan.pl
Piotr KANIEWSKI
Military University of Technology, Poland
e-mail: piotr.kaniewski@wat.edu.pl
Piotr KISAŁA
Lublin University of Technology, Poland
e-mail: p.kisala@pollub.pl
Manoj KUMAR
Jaypee Institute of Information Technology, Uttar Pradesh, India
e-mail: my.hunn.manoj@gmail.com
Grzegorz LENTKA
Gdańsk University of Technology, Poland
e-mail:lentka@eti.pg.edu.pl
Czesław ŁUKIANOWICZ
Koszalin University of Technology, Poland
e-mail: czeslaw.lukianowicz@tu.koszalin.pl
Rosario MORELLO
University Mediterranean of Reggio Calabria, Italy
e-mail: rosario.morello@unirc.it
Fernando PUENTE LEÓN
University Karlsruhe, Germany
e-mail: f.puente@me.com
Hamid M. SEDIGHI
Shahid Chamran University of Ahvaz, Iran
e-mail: h.msedighi@scu.ac.ir
Petr SEDLAK
Brno University of Technology, Brno, Czech Republic
e-mail: sedlakp@feec.vutbr.cz
Tadeusz SONDEJ
Military University of Technology, Poland
e-mail: tadeusz.sondej@wat.edu.pl
Mirosław SZMAJDA
Opole University of Technology, Poland
e-mail: m.szmajda@po.edu.pl
Michał STRZELECKI
Lodz University of Technology, Poland
e-mail: michal.strzelecki@p.lodz.pl
Grzegorz ŚWIRNIAK
Wrocław University of Technology, Poland
e-mail: grzegorz.swirniak@pwr.wroc.pl
Michał WIECZOROWSKI
Poznan University of Technology, Poland
e-mail: jmichal.wieczorowski@put.poznan.pl
Jacek WOJTAS
Military University of Technology, Poland

Kontakt

E-mail: metrology@wat.edu.pl
URL: www.metrology.wat.edu.pl

Post address:
Editorial Office of Metrology and Measurement Systems
Military University of Technology
Faculty of Electronics
gen. Sylwestra Kaliskiego 2
00-908 Warsaw
Poland

Instrukcje dla autorów

Sample article with Author guidelines

Types of contributions
Metrology and Measurement Systems welcomes submissions of the following article types:
• invited special issue or review papers presenting the current stage of the knowledge within scope of the journal (about 20 edited pages, approximately 3000 characters each),
• research papers reporting high-quality original scientific or technological advancements (max. 12 pages),
• papers based on extended and updated contributions presented at scientific conferences (max. 12 pages),
• short notes, i.e. book reviews, conference reports, short news (max. 2 pages).
Manuscript preparation
General The text of a manuscript should be written in clear and concise English. The camera-ready format – with attached separate files containing illustrations, tables and photographs – is required. A cover letter with clear explanation of scientific novelty of the paper is strongly recommended. Papers based on extended and updated contributions presented at scientific conferences, or strongly related to previous authors’ works, must be accompanied with a cover letter file, which should explain in details changes made in the manuscript in comparison with the original conference paper and highlight the novelty in reference to other authors’ works.
The main text of a manuscript should be printed on an A4 page (with margins of 2.5 cm) using Times New Roman style with a font size of 12 pt; the paragraphs should start with the indentation of 5 mm, and titles should be written in bold. That text can be divided into sections (numbered 1, 2, …), first-order subsections (numbered 1.1., 1.2., …, written in italics), and – if needed – second-order subsections (numbered 1.1.1., 1.1.2., …, written same as first-order subsections). The only acceptable manuscript formats are in Microsoft Word (.doc, .docx).
The Editor encourages the Authors of submitted papers who are not English native speakers, to use a language service checking the language correctness not only with respect to grammar, but also in the way of presentation of research results accepted by renowned publishers, e.g. presented on the website of the European Association of Science Editors. The Editor encourages the Authors of submitted papers who are not English native speakers, to use a language service checking the language correctness not only with respect to grammar, but also in the way of presentation of research results accepted by renowned publishers, e.g. presented on the website of the European Association of Science Editors.

Figures
Figures (illustrations, photographs) and tables, provided in the camera-ready form suitable for reproduction (which may include reduction), should be additionally submitted (one per page), larger than the final size. While preparing figures we encourage to start with defining expected size and minimum font size that fit to all graphics in the manuscript – using the same style in all of your graphics visually improves the article. Final figure formats must be in one of the following: (vectors) .eps, .pdf, .ai or .cdr, and (bitmaps) .bmp, .gif, .tif or .jpg.
As far as plots, block diagrams, schematics etc. are concerned, we suggest to use one of vector formats to improve quality and scalability. Figures in vector formats must be saved using RGB colours and with fully white background (0% K). Hidden layers are unacceptable. Minimum line thickness printed in a single colour is 0.25 pt (0.09 mm), and 1 pt (0.36 mm) when using more colours. Typically we suggest 0.2-0.5 mm but in particular cases the range 0.1–1.0 mm will be accepted. Lines in plots should be distinguished not only by using different colours but also using different line types and markers, if needed.

Equation
All equations must be numbered consecutively throughout the text. Each equation should be preceded and followed by a 6-point spacing. Punctuate equations when they are part of a sentence. Equation numbers should be enclosed in parentheses. Equations should be prepared with the use of MathType or Microsoft Equation editors. The type size in the equation is the same as for the text. To make your equations more compact, you may use the appropriate mathematical symbols or expressions. The symbols used in an equation have to be defined before that equation or immediately after it. Use italics for variables (e.g. i, x, n), physical quantity symbol (e.g. voltage U, temperature T), letter pointers and general function symbols. Do not use italics for constants, indexes, minimum, maximum and trigonometric functions, mathematical operators, differentials, etc. To refer to the equation use “(1)”, not “Eq. (1)” or “equation (1)”, except at the beginning of a sentence where “Equation (1)” should be used. We recommend to use International System of Units SI i.e. metre-kilogram-second system of units. As a decimal separator dot should be used in the entire manuscript (text, figures, tables).

References
The paper has to be clearly positioned in the context of relevant literature in the field of measurements and instrumentation. Note that lack of references from the main field of Metrology and Measurement Systems interest may suggest that the content of manuscript does not exactly correspond to the scope of metrological journals. It may reduce possibility that a proposed paper will be read by audience society. In such a case our Editorial Board may suggest to send the manuscript to a more appropriate journal. Also note that the use of possibly up-to-date references may indicate importance of your work. Table below gives examples of some relevant and renewable journals related to widely understood metrology.

Journal

Publisher

ISSN

Metrologia

IOP Publishing

0026-1394

IEEE Transactions on Instrumentation and Measurement

IEEE

0018-9456

Measurement

Elsevier

0263-2241

Measurement Science and Technology

IOP Publishing

0957-0233

Metrology and Measurement Systems

PAS

0860-8229

Review of Scientific Instruments

IOP Publishing

0034-6748

IEEE Transactions on Industrial Electronics

IEEE

1557-9948

IET Science, Measurement & Technology

IET

1751-8822

Journal of Instrumentation

SISSA, IOP Publishing

1748-0221

Measurement Science Review

Walter de Gruyter

1335-8871

IEEE Instrumentation and Measurement Magazine

IEEE

1094-6969

Bulletin of the Polish Academy of Sciences: Technical Sciences

PAS

2300-1917

Opto-Electronics Review

PAS

1896-3757

IEEE Sensors Journal

IEEE

1558-1748

Sensors

MDPI

1424-8220



References should be inserted in the text in square brackets, i.e. [1]; their list, numbered in citation order, should appear at the end of the manuscript. The format of the references should follow the APA 7th edition formatting style, i.e.: for an journal paper – surname(s) and initial(s) of author(s), year in brackets, title of the paper, full journal name, volume, issue (in brackets) and page numbers. Put all author names unless there are more than 20. Otherwise, after the first 19 authors’ names, use an ellipsis in place of the remaining author names. Then, end with the final author’s name (do not place an ampersand before it).

Submission process
Manuscript should be submitted via the Internet Editorial System (IES) – an online submission and peer review system. In order to submit the manuscript via the IES, the authors (first-time users) must create an author account to obtain a user ID and password required to enter the system. The submission of the manuscript in a single file, i.e. “Article File” containing the complete manuscript (with all figures of high quality and tables embedded in the text), is preferred. All figures have to be uploaded in separate files. The generated PDF file has to be approved. The PDF file has lower quality of the embedded figures to limit its size only.
The submission of a manuscript means that its content has not been published previously, it is not under consideration for publication elsewhere, and that – if accepted – it will not be published elsewhere. The Author hereby grants the Polish Academy of Sciences (the Journal Owner) the license for commercial use of the article according to the Open Access License (CC BY-NC-ND 4.0), which has to be signed before publication. The copyright form is available in the IES.
The Authors are urged to suggest 4 to 5 reviewers in their application (with names, affiliations and addresses) with whom the Editorial Board could co-operate while processing the paper. Proposed reviewers should be experts deeply involved in issues related to the subject matter of the paper and they are intended to come from different universities or research centres.
Each submitted manuscript is subject to a single-blind peer-review procedure, and the publication decision is based on the reviewers’ comments. If necessary, the authors may be invited to revise their manuscripts. On acceptance, manuscripts are subject to editorial amendment to exactly fit the journal style.
An essential criterion for the evaluation of submitted manuscripts is their potential impact on the research field, measured by the number of repeated quotations. Such papers are preferred at the evaluation and publication stages.
Proofs will be sent to the corresponding author by e-mail and should be returned within 48 hours from receipt. The publication in the journal is free of charge. A sample copy of the journal will be sent to the corresponding author free of charge. For colour pages the authors will be charged at the rate of 160 PLN or 80 EUR per page. The payment to the bank account of the main distributor (given in “Subscription Information”) must be completed before the date indicated by the Editorial Office.

Other information
It is possible to include supplementary files related to the article content, such as e.g. developed databases. These files can be then used by other researchers to compare their algorithms using the same input data. For more details about supplementary files please contact the Editorial Board: metrology@wat.edu.pl. The biographical statements, at the very end of the article, are not obligatory, however, they are kindly recommended. Each statement should include the author’s full name and brief personal history focused on areas of research and scientific achievements. The biographical statement may not exceed 100 words and should be written using Times New Roman style with a font size of 8 pt.
The publication of your article is a great achievement but then it needs to be further promoted to make it more visible to the research community. Responsibility for this task lies with the Authors and our Editorial Board. We guarantee free access to the article in the Journals PAN of the Polish Academy of Science, including articles in Early Access form (published just after acceptance decision), indexing in popular and renewable databases (e.g. Thomson Scientific Master Journal List, Elsevier’s Scopus, Google Scholar). Furthermore, selected articles are highlighted on the journal website and are reprinted for promotion at conferences and other events. The Authors can share the final form of the article on various social networks and research-sharing platforms, such as Twitter, Facebook, Linkedin, ResearchGate, Academia.edu, SciProfiles. They are also encouraged to update personal and institutional webpages by adding the title and a link of the article. Feel free also to share your work with your colleagues using any other methods that do not conflict with the CC BY-NC-ND 4.0 license.
For more detailed description about how to write a paper for the Metrology and Measurement Systems journal please look at the Author guidelines for manuscript preparation. We strongly recommend using this file as a template for manuscript preparation.

Polityka Open Access

Metrology and Measurement Systems jest czasopismem wydawanym w wolnym dostępie na licencji CC BY-NC-ND 4.0. https://creativecommons.org/licenses/by-nc-nd/4.0/

Metrology and Measurement Systems is an open access journal with all content available with no charge in full text version. The journal content is available under the licencse CC BY-NC-ND 4.0 https://creativecommons.org/licenses/by-nc-nd/4.0/.

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