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Wyświetlanie 1-15 z 46
Tytuł:
Analysis of z-axis kinematics influence on measurement result
Autorzy:
Gruza, M.
Harmatys, W
Gąska, P.
Gąska, A.
Sładek, J.
Powiązania:
https://bibliotekanauki.pl/articles/103398.pdf
Data publikacji:
2015
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
CMM accuracy
CMM kinematics
Opis:
CMMs accuracy depend on a number of factors. In spite of using various methods for CMM correction, the differences can be observed in the metrological capability be¬tween the areas in the measuring volume of CMM. Authors attempted to estimate the impact of one of potential CMM accuracy influencing factors, a CMM Z-axis position during measurement, on measurement result. This article presents performed experi¬ments and obtained results.
Źródło:
Advances in Science and Technology. Research Journal; 2015, 9, 26; 109--112
2299-8624
Pojawia się w:
Advances in Science and Technology. Research Journal
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Determination of temperature impact on cmm residual kinematic errors distribution
Autorzy:
Harmatys, W
Gąska, P.
Gąska, A
Gruza, M.
Sładek, J.
Powiązania:
https://bibliotekanauki.pl/articles/102879.pdf
Data publikacji:
2015
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
residual errors
CMM correction
Opis:
In case of coordinate machines that use CAA correction matrix, the issue of kine¬matic errors analysis may be based on the determination of residual error distribu¬tion. Temperature changes have an impact on CMM kinematic structure, which may cause the differences in the map of residual errors. As for today, the residual errors were analysed only for the reference temperature. No research was undertaken on the residual errors changes depending on the temperature variations. This paper presents the experiment aimed at residual errors analysis and resulting errors distributions for different temperatures.
Źródło:
Advances in Science and Technology. Research Journal; 2015, 9, 26; 113--117
2299-8624
Pojawia się w:
Advances in Science and Technology. Research Journal
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Axis location and scale factors estimation for three-axis machines from periodic performance checks with laser distance measurements - risks and opportunities
Autorzy:
Nafi, A.
Łoś, A.
Mayer, J.R.R.
Powiązania:
https://bibliotekanauki.pl/articles/99577.pdf
Data publikacji:
2010
Wydawca:
Wrocławska Rada Federacji Stowarzyszeń Naukowo-Technicznych
Tematy:
CMM
calibration
performance
diagnostic
Opis:
Users of coordinate measuring machine and large gantry machines need to ensure the volumetric performance of their machines in order to inspect, or machine, mechanical parts with precision. In the case of CMMs, the ASME B89.4.10360.2-2008 document imposes seven directions for a volumetric check. These directions offer some redundancy for axis location (out-of-squarenesses) and scale factor estimation. The paper looks at the opportunity of using the data for immediate machine correction and the risks involved. In particular, the fact of using test data for calibration and verification, the potential contamination from non-modelled motion errors and the representativity of the estimated parameters are considered. Experimental results obtained using laser interferometry on a LEGEX CMMs are used to present the main concepts.
Źródło:
Journal of Machine Engineering; 2010, 10, 4; 89-99
1895-7595
2391-8071
Pojawia się w:
Journal of Machine Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Sharing Experiences
Autorzy:
Schenk, K.
Powiązania:
https://bibliotekanauki.pl/articles/132152.pdf
Data publikacji:
2015
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
CMM
measurement strategy
metrology
Opis:
Companies repeatedly determine that not all purchase parts fit exactly despite extensive specifications and controlled production. For fear of expensive recalls and complaints, many companies therefore go on the offensive and check all purchased parts despite extensive measurement reports. Many companies would be able to skip this time-consuming, resource-intensive work by having the measuring process of their suppliers checked and certified by external experts.
Źródło:
Advanced Technologies in Mechanics; 2015, 2, no. 3 (4); 31-34
2392-0327
Pojawia się w:
Advanced Technologies in Mechanics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Coordianate measurment systems CMM and CMA – characteristic and methods of their accuracy evaluation
Autorzy:
Kupiec, M
Powiązania:
https://bibliotekanauki.pl/articles/103289.pdf
Data publikacji:
2012
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
coordinate measurements
CMM
CMA
accuracy
Opis:
The article presents the conception of coordinate measurement. The characteristic of two systems (Coordinate Measuring Machine – CMM and Coordinate Measuring Arm – CMA) which are based on this measurement is also shown. Further on their construction, working principle, application, advantages and disadvantages are described. Finally, the methods of accuracy evaluation of these devices are presented and compared.
Źródło:
Advances in Science and Technology. Research Journal; 2012, 6, 16; 18-23
2299-8624
Pojawia się w:
Advances in Science and Technology. Research Journal
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
An analysis of influence of sampling strategy and scanning speed on estimation of straightness and flatness deviations with CMMs
Autorzy:
Stępień, K.
Powiązania:
https://bibliotekanauki.pl/articles/132171.pdf
Data publikacji:
2015
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
form deviation
flatness
straightness
CMM
Opis:
The paper deals with the problem of influence of scanning speed and measuring strategy on results of flatness and straightness deviations with CMMs. The straightness was studied for various numbers of sampling points and for various scanning speeds. The flatness was investigated for various measurement paths and for various levels of scanning speeds. The results of the study indicate that applied measurement speed and selected measurement path can change obtained results very significantly.
Źródło:
Advanced Technologies in Mechanics; 2015, 2, no. 2 (3); 2-8
2392-0327
Pojawia się w:
Advanced Technologies in Mechanics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
One dimensional kinetic model of CMM passive scanning probes
Autorzy:
Krajewski, G.
Woźniak, A.
Powiązania:
https://bibliotekanauki.pl/articles/385246.pdf
Data publikacji:
2009
Wydawca:
Sieć Badawcza Łukasiewicz - Przemysłowy Instytut Automatyki i Pomiarów
Tematy:
scanning probes
CMM
dynamics
model
Opis:
Scanning probes, also known as measuring probes, are one of the most used solution for coordinate measuring machines (CMM), because of ability to collect large amount of measuring points as well as fast measurements. Fast measurement and accuracy of measuring system have recently determined two critical parameters which decide about effectiveness of the machine. Dynamic is the most significant factor limiting accuracy of measurement. Majority of research into scanning CMM does not separate the performance of the probing system from the other error sources of the machines, so a real error influenced by the probing system is not deeply determined. This paper presents the scanning probe model regardless the machine links. Determined model makes possible to better understand the probing process with higher speeds and optimize the measuring process. Finally (future work), optimization algorithms will be proposed and applied to the probing system and the result will be improved accuracy.
Źródło:
Journal of Automation Mobile Robotics and Intelligent Systems; 2009, 3, 4; 172-174
1897-8649
2080-2145
Pojawia się w:
Journal of Automation Mobile Robotics and Intelligent Systems
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Badania porównawcze w wyznaczaniu dokładności CMM za pomocą wybranych wzorców długości
Comparison investigations of CMM accuracy tests by different length gauges
Autorzy:
Zawacki, M.
Ratajczyk, E.
Powiązania:
https://bibliotekanauki.pl/articles/155482.pdf
Data publikacji:
2010
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
CMM
sprawdzanie dokładności
interferometr
accuracy check
Opis:
Przeprowadzono badania, mające na celu sprawdzenie możliwości zastosowania nowej metody sprawdzania dokładności współrzędnościowych maszyn pomiarowych (CMM) w odniesieniu do metody klasycznej. W nowej metodzie dokładność CMM określana jest na podstawie pomiaru przemieszczenia elementu optycznego wchodzącego zarazem w skład układu interferometru laserowego. Zastosowanie interferometru pozwala na sprawdzenie dokładności CMM na dowolnie długich odcinkach pomiarowych w przeciwieństwie do obecnie używanych wzorców końcowych tzn. płytek wzorcowych, których długość nie przekracza jednego metra.
The conception of an accuracy test for Coordinate Measuring Machine with use of a laser interferometer is presented. In this method [1, 2] the CMM accuracy is evaluated basing on the displacement of an optics element (Fig. 1.) which is a part of the interferometer system. Interferometer allows checking the CMM accuracy along an unlimited distance in contrary to the most popular gauge blocks which are no longer than one meter. A cube corner fixed in the special adapter (Fig. 2.) was used as an artifact. Repeatability of measurements of the cube corner was checked on CMM ACCURA made by C.Zeiss manufacturer, CMM was equipped with a VAST Gold central head probe. The measurement results of the reference sphere and cube corner are shown in Fig. 3. The experiment results confirm that a cube corner can be used as the measurement artifact for coordinates measuring machines. It also works very well as a mirror in the interferometer system. The cube corner measurement repeatability (0.2 žm) is similar to that reached during measurements of the reference sphere (0.4 žm). The methods was also checked during the accuracy test for the ZEISS ACCURA CMM. The results are presented in Fig. 4. The differences between the measurements of the gauge block and cube corner change from -0.8 to 0.6 žm. In the future research it will be important to assess all factors which can influence the accuracy of this method during the CMM length measurement test.
Źródło:
Pomiary Automatyka Kontrola; 2010, R. 56, nr 1, 1; 80-81
0032-4140
Pojawia się w:
Pomiary Automatyka Kontrola
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Normy i standardy z zakresu bezpieczeństwa informacyjnego i teleinformatycznego
Information security and computer safety norms and standards
Autorzy:
Liderman, K.
Powiązania:
https://bibliotekanauki.pl/articles/273168.pdf
Data publikacji:
2009
Wydawca:
Wojskowa Akademia Techniczna im. Jarosława Dąbrowskiego
Tematy:
NIST
CAG
ITIL
COBIT
SSE-CMM
Opis:
Artykuł zawiera przegląd norm i standardów z zakresu bezpieczenstwa teleinformatycznego nieco mniej znanych niż normy serii ISO/IEC 27000 oraz ISO/IEC 15408.
This paper contains information security and computer safety norms and standards review, a little less known than ISO/IEC 27000 and ISO/IEC 15408.
Źródło:
Biuletyn Instytutu Automatyki i Robotyki; 2009, R. 15, nr 26, 26; 29-43
1427-3578
Pojawia się w:
Biuletyn Instytutu Automatyki i Robotyki
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Assessment of the impact of probe head hysteresis on the accuracy of five-axis coordinate measuring systems
Autorzy:
Gąska, P.
Gruza, M.
Gąska, A.
Harmatys, W.
Sładek, J.
Powiązania:
https://bibliotekanauki.pl/articles/102633.pdf
Data publikacji:
2017
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
articulating probe head
hysteresis
accuracy
CMM
Opis:
One of the factors affecting the accuracy of Coordinate Measuring Systems is hysteresis of a probe head. It is important especially in case of touch trigger probes and should be taken into account during the determination of probing strategy. In this article, the authors try to assess how this phenomenon affects the accuracy of five axis coordinate systems which utilize articulating probe head. Such systems allow to measure point coordinates using rotary movements of the head what introduces changes to the probing process. The experiments presented in this paper are based on multiple measurements of the reference elements such as gauge blocks and standard ring.
Źródło:
Advances in Science and Technology. Research Journal; 2017, 11, 3; 277-282
2299-8624
Pojawia się w:
Advances in Science and Technology. Research Journal
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Ants Colony Optimisation of a Measuring Path of Prismatic Parts on a CMM
Autorzy:
Stojadinovic, S. M.
Majstorovic, V. D.
Durakbasa, N. M.
Sibalija, T. V.
Powiązania:
https://bibliotekanauki.pl/articles/221131.pdf
Data publikacji:
2016
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
path planning
ACO
CMM
prismatic parts
Opis:
This paper presents optimisation of a measuring probe path in inspecting the prismatic parts on a CMM. The optimisation model is based on: (i) the mathematical model that establishes an initial collision-free path presented by a set of points, and (ii) the solution of Travelling Salesman Problem (TSP) obtained with Ant Colony Optimisation (ACO). In order to solve TSP, an ACO algorithm that aims to find the shortest path of ant colony movement (i.e. the optimised path) is applied. Then, the optimised path is compared with the measuring path obtained with online programming on CMM ZEISS UMM500 and with the measuring path obtained in the CMM inspection module of Pro/ENGINEER® software. The results of comparing the optimised path with the other two generated paths show that the optimised path is at least 20% shorter than the path obtained by on-line programming on CMM ZEISS UMM500, and at least 10% shorter than the path obtained by using the CMM module in Pro/ENGINEER®.
Źródło:
Metrology and Measurement Systems; 2016, 23, 1; 119-132
0860-8229
Pojawia się w:
Metrology and Measurement Systems
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wybór strategii pomiarowej w kontroli konstrukcji spawanych z wykorzystaniem ramion pomiarowych
Choice of measurement strategy for checking welded constructions using AACMM
Autorzy:
Tyka, A.
Góralczyk, A.
Powiązania:
https://bibliotekanauki.pl/articles/155485.pdf
Data publikacji:
2010
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
ramiona pomiarowe
współrzędnościowa technika pomiarowa
CMM
AACMM
Opis:
W artykule przedstawiono problemy związane z wyborem strategii pomiarowej w odniesieniu do kontroli wymiarów geometrycznych spawanych konstrukcji zespołów jezdnych pojazdów szynowych. Konstrukcje te, ze względu na znaczne wymiary można zaliczyć do obiektów wielkogabarytowych. Ich cechą szczególną są wysokie wymagania dokładnościowe wynikające z niewielkich wartości tolerancji niektórych wymiarów geometrycznych. Dokonano analizy wpływu wyboru strategii pomiarowej z wykorzystaniem współrzędnościowego ramienia pomiarowego, którego właściwości metrologiczne, obejmujące statystyczne charakterystyki błędów pomiarów w sposób doraźny rozpoznano z wykorzystaniem typowych procedur badawczych oraz opracowanych wzorców kontrolnych. Wykorzystano procedury kontrolne zalecane przez normę ASME dedykowaną dla WRP.
Articulated Arm Coordinate Measuring Machine (AACMM) belongs to a group of hybrid construction machines. These machines are commonly used for inspections of large elements. Their construction imposes a specific measurement strategy. Choice of a proper strategy might result in significant improvement in measurement results and error minimising. Some problems of the measurement strategy are presented in Paragraph 2. There are also given the results obtained from examinations of two different AACMMs in Fig. 1 and Table 1. The problems dealing with choice of the proper strategy and factors influencing it are presented in Paragraph 3. Railway sets and their measurements are used as an example of large objects. Comparison of two AACMMs is performed. The final conclusions are formulated in Paragraph 4.
Źródło:
Pomiary Automatyka Kontrola; 2010, R. 56, nr 1, 1; 78-79
0032-4140
Pojawia się w:
Pomiary Automatyka Kontrola
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Towards the development of feature - based ontology for Inspection Planing System on CMM
Autorzy:
Stojadinovic, S. M.
Majstorovic, V. D.
Powiązania:
https://bibliotekanauki.pl/articles/99972.pdf
Data publikacji:
2012
Wydawca:
Wrocławska Rada Federacji Stowarzyszeń Naukowo-Technicznych
Tematy:
engineering ontology
basic geometrical primitives
CMM
protégé
Opis:
The paper define the basic geometrical primitives as classes of Engineering Ontology in order to develop feature - based ontology for Inspection Planning System for CMM. The process of acquisition the properties of individuals and properties of classes is proposed, as one of the main components of Engineering Ontology suitable for implementation in the software for development the ontology - Protégé. The proposed method describes derived geometrical characteristics or characteristics that are measured on the mechanical part. The results indicate that further development of methodology for Engineering Ontology is justified in the field of production metrology and implementation in the appropriate software.
Źródło:
Journal of Machine Engineering; 2012, 12, 1; 89-98
1895-7595
2391-8071
Pojawia się w:
Journal of Machine Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Determination of influence of the parameters connected with the stabilization of the position on the 5-axis manipulators’ operation accuracy
Autorzy:
Gaska, A.
Harmatys, W.
Gruza, M.
Gaska, P.
Sladek, J.
Powiązania:
https://bibliotekanauki.pl/articles/100183.pdf
Data publikacji:
2018
Wydawca:
Wrocławska Rada Federacji Stowarzyszeń Naukowo-Technicznych
Tematy:
pose accuracy
5-axis system
LaserTracer
CMM
Opis:
The 5-axis systems, especially those that use in their kinematic chain both prismatic joints and revolute kinematic pairs are gaining popularity in many scientific disciplines with manufacturing, metrology and robotics at the forefront. This is therefore important to undertake research aiming in identification of sources of inaccuracies in their functioning and investigation on possibility of eliminating or compensating them. A significant impact on 5-axis kinematic structures accuracy may be assigned to parameters associated with the stabilization of the machine position and angular position, such as position stabilization time, position overshoot and drift of positioning accuracy. These parameters are well described in ISO 9283 standard related to performance criteria and test methods for industrial robots. The methodology presented in this standard is adapted for testing the impact of mentioned parameters for functioning of 5-axis kinematic structures other than industrial robots, which mainly include five-axis coordinate measuring systems and machine tools. A series of experiments performed on five-axis coordinate measuring system is presented in this paper, their results are assessed in a quantitative manner and basing on them a general algorithm for assessing the significance of impact of position stabilization parameters on functioning of the manipulator is proposed.
Źródło:
Journal of Machine Engineering; 2018, 18, 2; 54-63
1895-7595
2391-8071
Pojawia się w:
Journal of Machine Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Virtual coordinate measuring machine built using Laser Tracer system and spherical standard
Autorzy:
Sładek, J.
Gąska, A.
Olszewska, M.
Kupiec, R.
Krawczyk, M.
Powiązania:
https://bibliotekanauki.pl/articles/220886.pdf
Data publikacji:
2013
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
virtual CMM model
Monte Carlo method
LaserTracer
Opis:
Improvements of modern manufacturing techniques implies more efficient production but also new challenges for coordinate metrologists. The crucial task here is a coordinate measurement accuracy assessment. It is important because according to technological requirements, measurements are useful only when they are stated with their accuracy. Currently used methods for the measurements accuracy estimation are difficult to implement and time consuming. It is therefore important to implement correct and validated methods that will also be easy to implement. The method presented in this paper is one of them. It is an on-line accuracy estimation method based on the virtual CMM idea. A model is built using a modern LaserTracer system and a common test sphere and its implementation lasts less than one day. Results obtained using the presented method are comparable to results of commonly used uncertainty estimation methods which proves its correct functioning. Its properties predispose it to be widely used both in laboratory and industrial conditions.
Źródło:
Metrology and Measurement Systems; 2013, 20, 1; 77-86
0860-8229
Pojawia się w:
Metrology and Measurement Systems
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 46

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