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Tytuł:
Modernising the control network for determining displacements in hydraulic structures using automatic measurement techniques
Autorzy:
Zaczek-Peplinska, Janina
Saloni, Lech
Powiązania:
https://bibliotekanauki.pl/articles/28411637.pdf
Data publikacji:
2023
Wydawca:
Instytut Technologiczno-Przyrodniczy
Tematy:
automatic measurement
control network
dams
engineering geodesy
geodetic displacement measurement
LiDAR
Opis:
Over the last two decades, geodetic surveying has seen significant advancements with terrestrial and unmanned aerial vehicle (UAV) laser scanning, alongside automatic observations being increasingly utilised throughout the construction process. In the context of dam structures, periodic geodetic displacement measurements are a compulsory component of control measurements and safety assessments. In Poland, however, control measurements have largely remained rooted in traditional techniques such as classic linear and angular measurements and precise levelling. These methods are typically carried out within distinct control networks, i.e. without dual-function observation points and targets. Furthermore, network points (pillars, targets) have often not been renewed since their installation several decades ago, and glass discs, used for crown measurements in the baseline method, frequently face damage. Changes in property ownership and modifications in environmental regulations are compounded by these issues, which often impede the proper upkeep of the sight line. The article proposes the adaptation and reconstruction of control networks to incorporate automatic observation techniques, including linear and angular measurements. This approach includes activities aimed at reconstructing and supplementing damaged network structures, modernising the geodetic process of determining structure displacements, and enhancing the accuracy, credibility, and reliability of geodetic displacement measurement results. The article presents the findings of an inventory assessment conducted on the existing control network infrastructure, focusing on the analysis of displacements for structures with diverse constructions and functions - a concrete dam (class I) and a water damming weir with a water intake. Furthermore, it presents practical conclusions regarding the efficient organisation of geodetic control measurements.
Źródło:
Journal of Water and Land Development; 2023, 59; 66--75
1429-7426
2083-4535
Pojawia się w:
Journal of Water and Land Development
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Application of reverse engineering technology in part design for shipbuilding industry
Autorzy:
Deja, Mariusz
Dobrzyński, Michał
Rymkiewicz, Marcin
Powiązania:
https://bibliotekanauki.pl/articles/258670.pdf
Data publikacji:
2019
Wydawca:
Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
Tematy:
reverse engineering
laser scanning
freeform surface
measurement techniques
Opis:
In the shipbuilding industry, it is difficult to create CAD models of existing or prototype parts, especially with many freeform surfaces. The paper presents the creation of the CAD 3D model of a shipbuilding component with the application of the reverse engineering technology. Based on the data obtained from the digitization process, the component is reconstructed in point cloud processing programs and the CAD model is created. Finally, the accuracy of the digital model is estimated.
Źródło:
Polish Maritime Research; 2019, 2; 126-133
1233-2585
Pojawia się w:
Polish Maritime Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Heat Transfer Investigations in Thermally Activated Battery : Experimental and Numerical Studies
Autorzy:
Preiskorn, M.
Koniorczyk, P.
Zmywaczyk, J.
Machowski, B.
Powiązania:
https://bibliotekanauki.pl/articles/403895.pdf
Data publikacji:
2012
Wydawca:
Wojskowa Akademia Techniczna im. Jarosława Dąbrowskiego
Tematy:
materials engineering
measurement of temperature
thermally activated battery
Opis:
In this paper both experimental and numerical studies of heat transfer in thermally activated batteries deriving from chemical sources of electric currents are considered. These batteries are used to supply special devices in the army, i.e. Missiles, rockets and they are characterized by the activation time from 0.1 s to several seconds with an effective working time from seconds, to tens of minutes [1]. The heat being generated during their work inside the battery causes a temperature increase of up to 873 K. In the frame of this work both experimental and numerical investigations of temperature distribution on the outer surface of the thermally activated battery BTR-03, as well as the heat flux distribution were carried out [8]. Comparing the temperature histories at several points on the outer surface of the battery BTR-03, obtained from experiment and calculated numerically allowed to validate the numerical model of heat transfer in the battery.
Źródło:
Problemy Mechatroniki : uzbrojenie, lotnictwo, inżynieria bezpieczeństwa; 2012, 3, 3 (9); 17-27
2081-5891
Pojawia się w:
Problemy Mechatroniki : uzbrojenie, lotnictwo, inżynieria bezpieczeństwa
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Analysis of the possibility of using KPIs in measuring the achievements of business entities from the energy sector : case study
Autorzy:
Czerwińska, Karolina
Pacana, Andrzej
Powiązania:
https://bibliotekanauki.pl/articles/2085632.pdf
Data publikacji:
2021
Wydawca:
Instytut Polityki Energetycznej im. Ignacego Łukasiewicza
Tematy:
key performance indicators
performance measurement system
improvement
quality engineering
Opis:
Each performance measurement and management system should be updated and reorganized so that it can be adequate to the changes occurring in the economic entity and the sector in which it operates. In addition, the performance measurement system should evolve with the organization's changing strategy and continually updated management objectives. The purpose of the study was to analyze the possibility of applying key performance indicators in an economic entity from the energy sector and to indicate their role and importance in the context of effective management and monitoring of progress in achieving pre-defined objectives. In the study, a coherent set of KPIs was designed, which were used to evaluate the existing concepts in the business entity and, at the same time, served as guidelines for choosing new directions of improvement and development concerning, among others, reorganization and restructuring in the customer service model through the introduction of a training system and organization design (a system of values and employee motivation), as well as obtaining permanent savings in operating costs through reduction of own costs will make it possible to pursue an effective pricing policy.
Źródło:
Energy Policy Studies; 2021, No. 1 (7); 41-53
2545-0859
Pojawia się w:
Energy Policy Studies
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Making it Happen building and developing track quality measuremen (TQM) trolley
Autorzy:
Len, E.
Powiązania:
https://bibliotekanauki.pl/articles/224530.pdf
Data publikacji:
2007
Wydawca:
Politechnika Warszawska. Wydział Geodezji i Kartografii
Tematy:
TQM
pomiary geodezyjne
track quality measurement
TQM trolley
engineering surveying
Źródło:
Reports on Geodesy; 2007, z. 1/82; 161-167
0867-3179
Pojawia się w:
Reports on Geodesy
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Comments on “A New Transient Attack on the Kish Key Distribution System”
Autorzy:
Kish, L. B.
Granqvist, C. G.
Powiązania:
https://bibliotekanauki.pl/articles/221426.pdf
Data publikacji:
2016
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
measurement theory
information security
foundations of physics
engineering over-simplifications
Opis:
A recent IEEE Access Paper by Gunn, Allison and Abbott (GAA) proposed a new transient attack against the Kirchhoff-law-Johnson-noise (KLJN) secure key exchange system. The attack is valid, but it is easy to build a defense for the KLJN system. Here we note that GAA’s paper contains several invalid statements regarding security measures and the continuity of functions in classical physics. These deficiencies are clarified in our present paper, wherein we also emphasize that a new version of the KLJN system is immune against all existing attacks, including the one by GAA.
Źródło:
Metrology and Measurement Systems; 2016, 23, 3; 321-331
0860-8229
Pojawia się w:
Metrology and Measurement Systems
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Complex Measurement System for Enhancement of Capability for Marine Engines Diagnostics
Autorzy:
Charchalis, A.
Powiązania:
https://bibliotekanauki.pl/articles/116855.pdf
Data publikacji:
2013
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
Marine Engines Diagnostics
Complex Measurement System
Exploitation Decision Aid System
marine diesel engine
mechanical engineering
Technical Diagnostic Laboratory
Vibroacoustics
Acoustic Emission Measurement Method
Opis:
Modern way of machines’ exploitation, due to their high level of structural complication, requires proper level of supervising. That supervising is generally based on detection of pre-failure states and evaluation of machines’ single elements or components condition. In the frame of development of the research capacity of the Mechanical Faculty of Maritime Academy in Gdynia, has been developed the Exploitation Decision Aid System for marine engines exploitation. The system was based on existing test bed with the marine diesel engine Sulzer AL 25/30 as a core element. Modernization of the measurement equipment, significantly extended research capacity, what resulted with improvement of quality, extension of the span, and acceleration of conducted research and development works in the domain of safety of exploitation and diagnostics of marine power plants. Investments in modern measurement apparatus enables also an extension of the range of research and expertise related to engines’ failures and pollutants emission, in relation to broad spectrum of implemented fuels. The goal has been achieved in way of modernization of engine’s monitoring system and stands in Technical Diagnostic Laboratory.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2013, 7, 3; 415-420
2083-6473
2083-6481
Pojawia się w:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Application of non-contact geodetic measurement techniques in dam monitoring
Autorzy:
Zaczek-Peplinska, Janina
Kowalska, Maria
Powiązania:
https://bibliotekanauki.pl/articles/2173994.pdf
Data publikacji:
2022
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
inżynieria hydrotechniczna
zapora
monitorowanie
pomiar geodezyjny
metoda bezkontaktowa
hydrotechnical engineering
dam
monitoring
geodetic measurement
non-contact technique
Opis:
The maintenance of dams, including the protection of reservoir and flood embankments, requires regular control measurements and assessment of their technical condition. The choice of measurement methods, especially in terms of their speed and reliability, become crucial especially when the facilities are endangered due to a natural disaster. However, despite the enormous rapid development of modern geodetic measurement techniques, measurements at most dams are still conducted using classical techniques, such as angular-linear or leveling measurements which require interference with the measured structure. In addition, they need to be personally performed by employees or require visual inspections of the structure or in its protection zone. This article presents non-contact geodetic measurement techniques, such as terrestrial laser scanning, remote sensing classification of intensity and thermovision images recorded with various measurement sensors, digital image correlation, digital photogrammetry, or UAV. They are presented and compared in terms of their reliability, efficiency and accuracy of the obtained data, and the possibility of their automation and integration. As surveyors and hydraulic and geotechnical engineers are increasingly turning to modern measurement technologies, the aim of this paper is to help in selecting appropriate and effective monitoring tools ensuring fast and safe measurements crucial for the safety and maintenance of concrete structures. It presents examples of research based on the use of the modern measuring techniques carried out in recent years by employees of the Faculty of Geodesy and Cartography at the Warsaw University of Technology.
Źródło:
Archives of Civil Engineering; 2022, 68, 3; 49--70
1230-2945
Pojawia się w:
Archives of Civil Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Agile effort estimation in software development projects – case study
Zwinne szacowanie pracochłonności w projektach programistycznych – studium przypadków
Autorzy:
Łabędzki, Maciej
Promiński, Patryk
Rybicki, Adam
Wolski, Marcin
Powiązania:
https://bibliotekanauki.pl/articles/14495622.pdf
Data publikacji:
2017-11-22
Wydawca:
Wyższa Szkoła Bankowa we Wrocławiu
Tematy:
software development
estimation
effort
measurement
requirements engineering
story points
Scrum
wytwarzanie oprogramowania
szacowanie
pracochłonność
miary
inżynieria wymagań
Opis:
Cel: Celem niniejszej pracy jest wskazanie powszechnych błędów i pułapek, a także sprawdzonych praktyk w zakresie estymacji pracochłonności w projektach programistycznych. Jakość oszacowań w mniej doświadczonych zespołach jest często niezadowalająca, wskutek czego estymacja jako element procesu wytwarzania oprogramowania jest porzucana. Decyzja zwykle uzasadniana jest błędnie rozumianą „zwinnością”. Artykuł wpisuje się w dyskusję nad bieżącymi trendami w zakresie szacowania, w szczególności w kontekście nowego podejścia „no estimates”.   Metodyka badań: Publikacja ma formę studium przypadków opartego o doświadczenia dojrzałego zespołu programistycznego. Autor, na podstawie znanych z literatury technik estymacji, wskazuje dobre i złe praktyki oraz często popełniane błędy w myśleniu i postępowaniu.   Wnioski: Kluczowe dla poprawnej estymacji okazują się: zrozumienie różnicy pomiędzy pracochłonnością i czasochłonnością, umiejętność monitorowania wydajności, a także sposób analizowania wymagań i sytuacja kadrowa zespołu.   Wartość artykułu: Publikacja pomaga opanować techniki podnoszące poziom zaufania do wszelkich oszacowań (czasu trwania, a pośrednio – kosztu wytwarzania oprogramowania) tam, gdzie znane są wymagania, jednak głównie na etapie realizacji projektu (projekt i implementacja).  Ograniczenia: Praca nie porusza problemów wstępnej estymacji przedsięwzięć, tj. estymacji dokonywanej na wczesnych etapach planowania.
Aim:Aim: The purpose of this paper is to identify common mistakes and pitfalls as well as best practices in estimating labor intensity in software projects. The quality of estimations in less experienced teams is often unsatisfactory, as a result of which estimation as part of the software development process is abandoned. The decision is usually justified by misunderstanding "agility". This article is part of the discussion on current trends in estimation, especially in the context of the new "no estimates" approach.Design / Research methods: The publication is a case study based on the experience of a mature development team. The author, on the basis of literature-based estimation techniques, shows good and bad practices, as well as common mistakes in thinking and behavior.Conclusions / findings: The key to correct estimation is: understanding the difference between labor intensity and time, ability to monitor performance, as well as how to analyze staff requirements for the team.Originality / value of the article: The publication helps to master confidence-boosting techniques for any estimation (duration, and indirectly, the cost of software development) where requirements are known, but mainly at the stage of project implementation (design and implementation).Limitations of the research: The work does not address the problems of initial estimation of projects, i.e. the estimation made in the early stages of planning.
Źródło:
Central European Review of Economics and Management; 2017, 1, 3; 135-152
2543-9472
Pojawia się w:
Central European Review of Economics and Management
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Specificity of Geotechnical Measurements and Practice of Polish Offshore Operations
Autorzy:
Łączyński, B.
Wróbel, K.
Powiązania:
https://bibliotekanauki.pl/articles/117304.pdf
Data publikacji:
2015
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
Offshore Operations
Geotechnical Measurement
Polish Baltic Coast
Lotos Petrobaltic
Offshore Technology
Offshore Market
Geotechnical Engineering
Oilfield Infrastructure
Opis:
As offshore market in Europe grows faster and faster, new sea areas are being managed and new ideas on how to use the sea potential are being developed. In North Sea, where offshore industry conducts intensive expansion since late 1960s, numerous wind farms, oil and gas platforms and pipelines have been put into operation following extensive research, including geotechnical measurement. Recently, a great number of similar projects is under development in Baltic Sea, inter alia in Polish EEZ, natural conditions of which vary from the North Sea significantly. In this paper, those differences are described together with some solutions to problems thereby arising.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2015, 9, 4; 579-584
2083-6473
2083-6481
Pojawia się w:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Digital Shape and Geometric Dimension Analysis of Polymer Fuel Tanks
Autorzy:
Józwik, J.
Dziedzic, K.
Powiązania:
https://bibliotekanauki.pl/articles/2023813.pdf
Data publikacji:
2021
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
3D scanner
reverse engineering
fuel tanks
dimensional measurement
skaner 3D
inżynieria odwrotna
zbiornik paliwa
pomiar wymiarów
Opis:
3D optical scanning method, is employed to digital shape and geometric dimension analysis of fuel tanks. The following paper presents the application possibilities of the optical 3D measurement method for measuring and archiving dimensions of geometrically complex parts, on the example of a passenger car fuel tank in local company. Based on the conducted measurements, for a specific type and size of the population of fuel tanks, proposed model that classifies the geometric accuracy of the tanks produced in the production line. For the analysis and data processing different informatics techniques have been used. The main objective of theirs was to identify the possibility of implementing the system for automation of the measurement to the production line. The measurements were implementation at local company - a manufacturer of polymer tanks in the automotive industry. For most of the measuring points, the mean value of the measuring deviations ranged from -1 mm to +1 mm. The mean values of the standard deviations are presented for a representative deviation of the X dimension of 0.1; 5; 10; 15 and 20 mm were respectively: 0.014; 0.150; 0.172; 0.289; 0.340 mm. The dimensional shape assessment of the manufactured tanks is extremely important from the point of view of the automation of this task in the production line. The optimization of the measurement of tanks carried out in laboratory conditions was implemented on the production line. The main task of optical scanning for the assessment of dimensional conformity has not been used so far in factory. This is due not only to the cost of such systems, but also to certain limitations that have been resolved thanks to laboratory tests. The obtained results of the metrological inspection make it possible to identify significant dimensional and shape deviations of automatically manufactured tanks. The proposed use of artificial neural networks allows the production with a high quality of tanks accuracy with the minimum the number of scanned tanks in the production line. The paper also presents the possibilities of the computer software to analyze the deviations of geometrically very complex parts.
Źródło:
Advances in Science and Technology. Research Journal; 2021, 15, 4; 38-48
2299-8624
Pojawia się w:
Advances in Science and Technology. Research Journal
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Preparation of Observation Base for Classical Surveys for Verification Purposes of Applying Modern Techniques for Measuring Displacement of Retaining Walls
Przygotowanie bazy obserwacyjnej pomiarów klasycznych w celu weryfikacji zastosowania nowoczesnych technik pomiarów przemieszczeń ścian oporowych
Autorzy:
Kuras, O.
Kuras, P.
Powiązania:
https://bibliotekanauki.pl/articles/385417.pdf
Data publikacji:
2014
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
retaining wall
non-contact measurement methods
engineering and industrial surveying
ściana oporowa
bezkontaktowe metody pomiaru
geodezja inżynieryjno-przemysłowa
Opis:
Landslides and landslips are a phenomena with very dangerous consequences for the safety of people and their property. Prevention is an important geotechnical issue. One method of protecting embankments and slopes is the construction of retaining walls. In order to ensure the safety of large retaining structures, they should be monitored during and after the completion of the construction works. Due to their size and location, often near busy roads, retaining walls are structures the measurement of which using classical methods is difficult and time-consuming. It is reasonable, therefore, to verify the usefulness of modern surveying techniques for checks of such structures. This article presents the preparation of an observation base for classical surveys, the results of which will be compared with the results obtained from terrestrial laser scanning and ground-based radar interferometry at a later stage.
Osuwiska i zsuwy są zjawiskami bardzo groźnymi dla bezpieczeństwa i mienia ludzi. Zapobieganie im jest ważnym zagadnieniem geotechnicznym. Jedną z metod zabezpieczania skarp i zboczy jest budowa ścian oporowych. W celu zapewnienia bezpieczeństwa dużych konstrukcji oporowych należy je monitorować w trakcie budowy i po jej zakończeniu. Ze względu na rozmiar i lokalizację często w pobliżu ruchliwych dróg ściany oporowe są obiektami, których pomiar metodami klasycznymi jest trudny i czasochłonny. Uzasadnione jest zatem sprawdzenie użyteczności nowoczesnych technik pomiarowych do pomiarów kontrolnych takich obiektów. Artykul prezentuje przygotowanie bazy obserwacyjnej do pomiarów klasycznych, których rezultaty będą w dalszym etapie prac porównywane z wynikami uzyskanymi z naziemnego skaningu laserowego i naziemnej interferometrii radarowej.
Źródło:
Geomatics and Environmental Engineering; 2014, 8, 1; 43-52
1898-1135
Pojawia się w:
Geomatics and Environmental Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Measuring displacements in engineering structures by means of a coordinate laser station
Badanie przemieszczeń obiektów inżynierskich z wykorzystaniem stacji laserowej
Autorzy:
Sztubecki, J.
Bujarkiewicz, A.
Sztubecka, M.
Powiązania:
https://bibliotekanauki.pl/articles/396253.pdf
Data publikacji:
2016
Wydawca:
Uniwersytet Zielonogórski. Oficyna Wydawnicza
Tematy:
displacement measurement
laser station
engineering structures
dynamic response
bridge structures
pomiar przemieszczeń
stacja laserowa
monitorowanie obiektów inżynierskich
dynamika konstrukcji
konstrukcje mostowe
Opis:
The application of geodetic methods to examine structures consists in the determination of their displacements relative to an established geodetic reference datum or in the definition of the geometry of their individual components. Such examinations form a picture of changes happening between specific points in time. Modern measurement technologies used in geodetic engineering enable undertaking more and more challenging measurements with increasing accuracy. The purpose of this article is to present a measurement technique involving a Leica TDRA 6000 total station to measure displacements in engineering structures. The station features a direct drive technology to achieve an accuracy of 0.25 mm in 3-dimensional measurements. Supported by appropriate software, the unit makes a perfect instrument for the monitoring of civil engineering structures. The article presents the results of measurement of static and dynamic displacements in a few engineering structures. The measurements were carried out both in laboratory conditions and on actual, operated civil engineering structures.
Badania konstrukcji metodami geodezyjnymi polegają na wyznaczeniu jej przemieszczeń względem przyjętego układu odniesienia lub na określeniu geometrii poszczególnych elementów. Dają one obraz zmian pomiędzy przyjętymi momentami czasu. Nowoczesne technologie pomiarowe stosowane w geodezji pozwalają na realizowanie coraz bardziej skomplikowanych zadań pomiarowych oraz uzyskiwanie coraz większych dokładności. Celem artykułu jest przedstawienie technologii pomiaru przemieszczeń konstrukcji inżynierskich z wykorzystaniem stacji laserowej Leica TDRA 6000. Stacja ta wyposażona jest w technologię napędu bezpośredniego, pozwalającą na uzyskiwanie dokładności pomiaru 3D na poziomie 0,25 mm. Wraz z odpowiednim oprogramowaniem jest doskonałym narzędziem umożliwiającym monitorowanie obiektów inżynierskich. Zaprezentowano wyniki pomiarów przemieszczeń statycznych oraz dynamicznych kilku konstrukcji inżynierskich. Pomiary wykonywano zarówno w warunkach laboratoryjnych jaki na istniejących i eksploatowanych obiektach.
Źródło:
Civil and Environmental Engineering Reports; 2016, No. 23(4); 145-160
2080-5187
2450-8594
Pojawia się w:
Civil and Environmental Engineering Reports
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A concept of using static GPS measurements for determination of vertical and horizontal land deformations in the Main and Old City of Gdansk
Autorzy:
Baryła, R.
Oszczak, S.
Koczot, B.
Szczechowski, B.
Powiązania:
https://bibliotekanauki.pl/articles/224428.pdf
Data publikacji:
2007
Wydawca:
Politechnika Warszawska. Wydział Geodezji i Kartografii
Tematy:
pomiary GPS
GPS
odkształcenie poziome
odkształcenie pionowe
Gdańsk
pomiary geodezyjne
GPS measurement
horizontal deformation
vertical deformation
altitude geodetic matrix
engineering surveying
Opis:
The data obtained in the precise levelling performed by the Przedsiębiorstwo Geologiczno - Geodezyjne ,"Geoprojekt - Gdańsk", as well as the material analyses, indicate the need to conduct further observations of dislocations in the Main and Old City of Gdańsk in the next years, in intervals of at least six months, controlled by independent fundamental altitude points. The results of GPS static measurements at reference and check points, conducted during the first year, should be taken as reference values for the measurements conducted in subsequent years. The differences in the results from consecutive years will indicate the existence of vertical and horizontal movements of the earth's surface, where the City of Gdansk is situated. The check points, stabilised with fundamental altitude points, will be used to monitor the settlement of historical tenement houses in Gdańsk. Measurement of horizontal and vertical deformations of the earth surface in the areas where valuable objects of our cultural heritage are situated will make it possible to detect potential threats and to take action to prevent considerable damage.
Źródło:
Reports on Geodesy; 2007, z. 1/82; 17-24
0867-3179
Pojawia się w:
Reports on Geodesy
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Influence of technical condition of control and measurement equipment on calibration results
Autorzy:
Kawalec, Małgorzata
Czerwińska, Karolina
Pacana, Andrzej
Powiązania:
https://bibliotekanauki.pl/articles/1831339.pdf
Data publikacji:
2021
Wydawca:
Stowarzyszenie Menedżerów Jakości i Produkcji
Tematy:
management engineering
measurement equipment
static calibration
processing function
numerical simulation
regression analysis
inżynieria zarządzania
aparatura pomiarowa
kalibracja statyczna
funkcja przetwarzania
symulacja numeryczna
analiza regresji
Opis:
In the paper there are analyzed the procedures used in the process of calibrating concerning control and measurement equipment. There was assumed the mathematical model of the measuring instrument which was then analyzed. The factors that result from the imperfect technical condition of the control and measurement equipment and may have an impact on the measurement results were also analyzed. Models of errors' models were assumed that may affect the calibration results. The static calibration of control and measurement equipment was analyzed. The results of numerical simulations concerning the static calibration of control and measurement equipment were presented, taking into account the linear and non-linear processing functions of the measurement equipment. The results of computations obtained for various models of processing functions were compared with each other and conclusions were drawn regarding the accuracy of the mapping of the measured quantity.
Źródło:
System Safety : Human - Technical Facility - Environment; 2021, 3, 1; 79-88
2657-5450
Pojawia się w:
System Safety : Human - Technical Facility - Environment
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 16

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