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Thematische Bibliographien / Portable coordinate measurement machines / Zeitschriftenartikel

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Zeitschriftenartikel zum Thema „Portable coordinate measurement machines“

Autor: Grafiati

Veröffentlicht am 28. Juni 2021

Zuletzt aktualisiert am 15. Februar 2022

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1

LIN Hu, 林虎, Frank Hrtig Frank Hrtig, Karin Kniel Karin Kniel und 石照耀 SHI Zhao-yao. „Measurement of large gears by using portable coordinate measuring machines“. Optics and Precision Engineering 21, Nr. 7 (2013): 1763–70. http://dx.doi.org/10.3788/ope.20132107.1763.

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2

King, Peter, Christopher Sansom und Paul Comley. „Photogrammetry for Concentrating Solar Collector Form Measurement, Validated Using a Coordinate Measuring Machine“. Sustainability 12, Nr. 1 (25.12.2019): 196. http://dx.doi.org/10.3390/su12010196.

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Concentrating solar power systems currently have a high capital cost when compared with other energy generating systems. The solar energy is captured in the form of thermal energy rather than direct electrical, which is attractive as thermal energy is more straightforward and currently more cost-effective to store in the amounts required for extended plant operation. It is also used directly as industrial process heat, including desalination and water purification. For the technology to compete against other generating systems, it is crucial to reduce the electrical energy cost to less than $0.10 per kilowatt-hour. One of the significant capital costs is the solar field, which contains the concentrators. Novel constructions and improvements to the durability and lifetime of the concentrators are required to reduce the cost of this field. This paper describes the development and validation of an inexpensive, highly portable photogrammetry technique, which has been used to measure the shape of large mirror facets for solar collectors. The accuracy of the technique has been validated to show a whole surface measurement capability of better than 100 m using a large coordinate measuring machine. Qualification of facets of the MATS plant was performed during its installation phase, giving results of the shape, slope and intercept errors over each facet.

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Gonzalez-Madruga, Daniel, Eduardo Cuesta, Héctor Patiño Sanchez, Joaquín Barreiro und Susana Martinez-Pellitero. „The Use of Virtual Circles Gauge for a Quick Verification of Portable Measuring Arms“. Key Engineering Materials 615 (Juni 2014): 70–75. http://dx.doi.org/10.4028/www.scientific.net/kem.615.70.

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Portable Measuring Arms or Articulated Arm Coordinate Measuring Machines (AACMMs) unique characteristics bring flexibility to the inspection task and allow outside laboratory measurements. However, still a few works study their metrological behavior, uncertainty or assessment. In fact, AACMM assessment involves time consuming and expensive processes mainly inherited from CMM field. A virtual circle gauge similar to ball bars and a methodology based on international standards are proposed in order to simplify the evaluation test. Additionally, two metrological laboratories have evaluated different AACMM models with this gauge. Also, two gauge lengths (distance between circles) have be included in this study. Results have proved that virtual circle gauges are suitable to evaluate AACMMs and tested the influence of distance between virtual circles.

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Icli, Caglar, Oleksandr Stepanenko und Ilian Bonev. „New Method and Portable Measurement Device for the Calibration of Industrial Robots“. Sensors 20, Nr. 20 (20.10.2020): 5919. http://dx.doi.org/10.3390/s20205919.

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This paper presents an automated calibration method for industrial robots, based on the use of (1) a novel, low-cost, wireless, 3D measuring device mounted on the robot end-effector and (2) a portable 3D ball artifact fixed with respect to the robot base. The new device, called TriCal, is essentially a fixture holding three digital indicators (plunger style), the axes of which are orthogonal and intersect at one point, considered to be the robot tool center point (TCP). The artifact contains four 1-inch datum balls, each mounted on a stem, with precisely known relative positions measured on a Coordinate Measuring Machine (CMM). The measurement procedure with the TriCal is fully automated and consists of the robot moving its end-effector in such as a way as to perfectly align its TCP with the center of each of the four datum balls, with multiple end-effector orientations. The calibration method and hardware were tested on a six-axis industrial robot (KUKA KR6 R700 sixx). The calibration model included all kinematic and joint stiffness parameters, which were identified using the least-squares method. The efficiency of the new calibration system was validated by measuring the accuracy of the robot after calibration in 500 nearly random end-effector poses using a laser tracker. The same validation was performed after the robot was calibrated using measurements from the laser tracker only. Results show that both measurement methods lead to similar accuracy improvements, with the TriCal yielding maximum position errors of 0.624 mm and mean position errors of 0.326 mm.

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Wang, Sen, Shugui Liu und Qing Mao. „A CMM-Based Method of Control Point Position Calibration for Light Pen Coordinate Measuring System“. Sensors 20, Nr. 19 (29.09.2020): 5592. http://dx.doi.org/10.3390/s20195592.

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A light pen coordinate measuring system (LPCMS) is a kind of vision-based portable coordinate measuring technique. It implements coordinate measurement by analyzing the image of a light pen, which has several control points and a probe. The relative positions of control points need to be determined before measurement and serve as the measuring basis in LPCMS. How to accurately calibrate the relative positions of control points is the most important issue in system calibration. In this paper, a new method of control point position calibration based on a traditional coordinate measuring machine (CMM) is proposed. A light pen is fastened to the measuring arm of a CMM and performs accurate translational movement driven by the CMM. A camera is used to capture the images of control points at different positions, and the corresponding readings of the CMM are recorded at the same time. By establishing a separate coordinate system for each control point, the relative positions of the control points can be transformed to the differences of a series of translation vectors. Experiments show that the calibration repeatability of control point positions can reach 10 μm and the standard deviation of measurement of the whole LPCMS can reach 30 μm. A CMM is used to generate accurate translation, which provides a high accuracy basis of calibration. Through certain mathematical treatment, tremendous data acquired by moving the light pen to tens of thousands of different positions can be processed in a simple way, which can reduce the influence of random error. Therefore, the proposed method provides a high-accuracy solution of control point position calibration for LPCMS.

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Sun, Zhen Zhong, Zeng Hong und Sheng Gui Chen. „Error Model and Simulation to Arbitrary Point of Automobile Panels in Normal Mechanical Parameter Measurement Instrument“. Advanced Materials Research 152-153 (Oktober 2010): 263–68. http://dx.doi.org/10.4028/www.scientific.net/amr.152-153.263.

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By using homogenous coordinate transformation principle and Denavit-Hartenberg analysis method, a measurement kinematics model and a error model to arbitrary point of automobile panels in normal mechanical parameter measurement instrument, which the movement of the probe center is relative to machine reference frame is construct. On the basis of using wielding matrix function total differential method, building up the error delivery relation of parameter error of measuring motion model transform to the probe center, and having verified what be built the error model correctness by simulation. The error is enlarge mainly in the process of delivery from angle error, while length error are very minor in error effects. This research can establish a base for studying the measuring-error of portable type measures instrument and it's measuring accuracy.

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Aidibe, Ali, Souheil Antoine Tahan und Mojtaba Kamali Nejad. „Interlaboratory Empirical Reproducibility Study Based on a GD&T Benchmark“. Applied Sciences 10, Nr. 14 (08.07.2020): 4704. http://dx.doi.org/10.3390/app10144704.

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The ASME Y14.5 geometric dimensioning and tolerancing (GD&T) and ISO-GPS (geometrical product specifications) standards define tolerances that can be added to components to achieve the necessary functionality and performance. The zone that each feature must lie within is defined in each tolerance. Measurement processes, including planning, programming, data collection (with contact or without contact), and data processing, check the compliance of the part with these specifications (tolerances). Over the last two decades, many works have been realized by the metrology community to investigate the accuracy, the measuring methods, and, specifically, the measurement errors of fixed and portable coordinate measuring machines (CMMs). A review of the literature showed the progression of CMMs in terms of accuracy and repeatability. However, discrepancies were observed between measurements using different CMMs or operators. This paper proposed a GD&T-based benchmark for the evaluation of the performance of different CMM operators in computer-aided inspection (CAI), considering different criteria related to the dimensional and geometrical features. An artifact was designed using basic geometries (cylinder and plane) and free-form surfaces. The results obtained from the interlaboratory comparison study showed significant performance variability for complex GD&T, such as in the composite profile and localization. This, in turn, emphasized the importance of GD&T training and certification in order to ensure a uniform understanding among different operators, combined with a fully automated inspection code generator for GD&T purposes.

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Yuan, Na, und Yong Bo Lv. „Rearch of Geometry Size Detection and Quality Control Method of Tower Materials“. Advanced Materials Research 971-973 (Juni 2014): 139–42. http://dx.doi.org/10.4028/www.scientific.net/amr.971-973.139.

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According to the monitoring requirements of the national grid, geometry size detection program and detection methods of tower materials are determined, based on the demands of the engineering and field measurement. Digital Caliper and Portable Three-coordinate Measuring Machine are further chosen as the measuring equipment. By the research of quality control method, geometry size data of tower materials are analyzed by histogram and Xbar-R chart. Geometry size detection of tower materials and quality control system's framework and module are preliminarily designed. Ultimately, it can provide the theory basis for that the national grid to realize the monitoring and information system management of the purchase quality of tower materials.

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NAGATAKI, Yuichi. „Articulated Arm Coordinate Measurement Machines“. Journal of the Japan Society for Precision Engineering 85, Nr. 5 (05.05.2019): 392–95. http://dx.doi.org/10.2493/jjspe.85.392.

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10

Pan, Fangyu, Li Nie, Yuewei Bai, Xiaogang Wang und Xiaoyan Wu. „Geometric errors measurement for coordinate measuring machines“. IOP Conference Series: Earth and Environmental Science 81 (August 2017): 012117. http://dx.doi.org/10.1088/1755-1315/81/1/012117.

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11

Lin, S.-W. „Dynamic measurement accuracy evaluation of coordinate measuring machines“. Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture 215, Nr. 8 (August 2001): 1091–97. http://dx.doi.org/10.1243/0954405011519015.

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12

Harvie, A. „Factors affecting component measurement on coordinate measuring machines“. Precision Engineering 8, Nr. 1 (Januar 1986): 13–18. http://dx.doi.org/10.1016/0141-6359(86)90004-8.

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13

Li, Ye, und Prashanth Reddy Nomula. „Surface-opening feature measurement using coordinate-measuring machines“. International Journal of Advanced Manufacturing Technology 79, Nr. 9-12 (12.03.2015): 1915–29. http://dx.doi.org/10.1007/s00170-015-6968-7.

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14

Bochkarev, Petr, Oleg Zakharov und Evgeniia Reshetnikova. „Control spherical surface on coordinate-measurement machines by minimum measurement volume“. PNIPU Bulletin. The mechanical engineering, materials science, Nr. 4 (25.12.2015): 5–16. http://dx.doi.org/10.15593/2224-9877/2015.4.01.

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15

Dhoska, Klodian, Toomas Kübarsepp, Altin Dorri und Agus Pramono. „Metrological Overview for Coordinate Measuring Machines“. Applied Mechanics and Materials 771 (Juli 2015): 195–99. http://dx.doi.org/10.4028/www.scientific.net/amm.771.195.

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In manufacturing system, 3D Coordinate Measuring Machines (CMM) are widely used for inspection services where the product should be subjected to the verification of design specifications. It is usually necessary to know the accuracy of 3D CMM equipment during the verification process of the product quality in mass production. To insure and increase the accuracy of 3D CMM the international series standards ISO 10360 are used. This paper presents the importance of the establishment of traceability to international standards as a key role for the reliability of 3D CMM measurement results.

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Zheng, Dateng, Zhongyue Xiao und Xiang Xia. „Multiple measurement models of articulated arm coordinate measuring machines“. Chinese Journal of Mechanical Engineering 28, Nr. 5 (30.08.2015): 994–98. http://dx.doi.org/10.3901/cjme.2015.0716.095.

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17

Saunders, Per, Alan Wilson, Nick Orchard, Neil Tatman und Paul Maropoulos. „An Exploration into Measurement Consistency on Coordinate Measuring Machines“. Procedia CIRP 25 (2014): 19–26. http://dx.doi.org/10.1016/j.procir.2014.10.005.

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18

Prakasvudhisarn, Chakguy, und Shivakumar Raman. „Framework for Cone Feature Measurement Using Coordinate Measuring Machines“. Journal of Manufacturing Science and Engineering 126, Nr. 1 (01.02.2004): 169–77. http://dx.doi.org/10.1115/1.1644541.

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Complex forms such as conicity have been largely ignored in the coordinate form literature, in spite of the sufficient need to inspect them in parts such as tapered rollers in bearings. This paper attempts to develop guidelines for inspection of cones and conical frustums using probe-type coordinate measuring machines. The sampling problem, the path determination, and fitting of form zones are each addressed in detail. Moreover, an integrative approach is taken for form verification and detailed experimental analysis is conducted as a pilot study for demonstrating the need for the same. Three separate sampling methods are applied: Hammersley, Halton-Zaremba, and Aligned Systematic; at various sample sizes using sampling theory and prior work in two-dimensional sampling. Linear and nonlinear deviations are formulated using optimization and least-squared methods and solved to yield competitive solutions. Comprehensive experimental analysis investigated issues of model adequacy, nesting, interactions, and individual effects, while studying conicity as a response variable in the light of sampling strategies, sizes, cone surface areas, and fitting methods. In summary, an orderly framework for sampling and fitting cones is developed which can lead to the development of comprehensive standards and solutions for industry.

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Matsuda, Jiro. „Uncertainty Analysis of Three-Dimensional Coordinate Measuring Machines“. Journal of Robotics and Mechatronics 9, Nr. 2 (20.04.1997): 140–45. http://dx.doi.org/10.20965/jrm.1997.p0140.

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On the basis of the condition that the distances between planes be measured in accordance with the ISO guide ""Uncertainty of Measurement"", the uncertainty of measurement of a CMM in the orthogonal coordinate system has been obtained by carrying out a systematic experiment. So the expanded uncertainty is given as 4.4μm.

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Zheng, Dateng, Chengtao Du und Yonggang Hu. „Research on optimal measurement area of flexible coordinate measuring machines“. Measurement 45, Nr. 3 (April 2012): 250–54. http://dx.doi.org/10.1016/j.measurement.2011.12.008.

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21

Zhao, J., Y. T. Fei, X. H. Chen und H. T. Wang. „Research on high-speed measurement accuracy of coordinate measuring machines“. Journal of Physics: Conference Series 13 (01.01.2005): 167–70. http://dx.doi.org/10.1088/1742-6596/13/1/039.

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22

Liu, S. G., K. Peng, F. S. Huang, Guo Xiong Zhang und P. Li. „A Portable 3D Vision Coordinate Measurement System Using a Light Pen“. Key Engineering Materials 295-296 (Oktober 2005): 331–36. http://dx.doi.org/10.4028/www.scientific.net/kem.295-296.331.

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A portable three-dimensional vision coordinate measuring system is proposed in this paper. It consists of a light pen, a CCD camera and a laptop computer. The light pen is a hand-held probe with three point light sources using LEDs and a spherical touch stylus arranged in one line. The CCD camera takes the image of LEDs on the light pen and the 3D coordinates of measured point at the center of touch stylus are obtained by computing the positions of LEDs in the image when the probe contacts the object surface. The equations of the vision measurement system are derived by using perspective of three collinear points and spatial analytic geometry. The measuring device can be set up easily on an industrial site and the measurement is convenient. The object surface can be simple, complex, or hidden from the view of camera. The effectiveness of the mathematical model and validity of the measuring system are confirmed by experiments.

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Woźniak, Adam, und Grzegorz Krajewski. „CMM Dynamic Properties of the Scanning Measurement of a 2D Profile“. International Journal of Automation Technology 9, Nr. 5 (05.09.2015): 530–33. http://dx.doi.org/10.20965/ijat.2015.p0530.

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Scanning probe CMMs have come to be considered the standard in coordinate metrology, not only because they provide high-quantity, high-speed data gathering but also because the scanning technology significantly decreases inspection time. Modern manufacturing, especially in today’s highly competitive economy, requires increasingly efficient measuring machines and processes because inspection machines have often become the bottlenecks in the entire manufacturing processes. More efficient coordinate metrology can mean faster measurement cycles with acceptable accuracies. However, increasing scanning speeds has also significantly increased errors. This article proposes a new method of investigating and identifying the principal components of CMM dynamic errors. The principle of the method is presented, and the validity of the method is experimentally confirmed on a bridge coordinate measuring machine.

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Avila, Agustín Brau, Jorge Santolaria Mazo, Margarita Valenzuela Galván und Juan José Aguilar Martín. „Mechanical design of an indexed metrology platform for verification of portable coordinate measuring machines“. International Journal of Mechatronics and Manufacturing Systems 7, Nr. 2/3 (2014): 194. http://dx.doi.org/10.1504/ijmms.2014.064751.

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25

Kondo, Yohan, Kazuyuki Sasajima, Sonko Osawa, Osamu Sato, Tsukasa Watanabe und Masaharu Komori. „Optimized measurement strategy for multiple-orientation technique on coordinate-measuring machines“. Measurement Science and Technology 20, Nr. 10 (16.09.2009): 105105. http://dx.doi.org/10.1088/0957-0233/20/10/105105.

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26

Vogel, M., N. Ebinger, M. Rosenberger und G. Linß. „A novel strategy for cost-efficient measurements with coordinate measurement machines“. Journal of Physics: Conference Series 238 (01.07.2010): 012038. http://dx.doi.org/10.1088/1742-6596/238/1/012038.

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27

Mu, Y. H., und B. K. A. Ngoi. „Dynamic Error Compensation of Coordinate Measuring Machines for High-Speed Measurement“. International Journal of Advanced Manufacturing Technology 15, Nr. 11 (01.10.1999): 810–14. http://dx.doi.org/10.1007/s001700050136.

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28

Zhang, Haitao, Shugui Liu und Xinghua Li. „A study on the key techniques of application of REVO five-axis system in non-orthogonal coordinate measuring machine“. Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture 231, Nr. 4 (01.10.2016): 730–36. http://dx.doi.org/10.1177/0954405416666906.

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REVO five-axis system, designed for the orthogonal coordinate measuring machines, must be reconfigured for the application in the non-orthogonal coordinate measuring machines. First, in this article, error sources of the system and components of measurement data are analyzed; then, scale values of coordinate measuring machine axes, which are essential to derive the coordinates of measured points in non-orthogonal coordinate measuring machine, are separated out. Besides, the mathematical model of REVO is established based on the quasi-rigid body theory, from which the measurement results can be evaluated by data derived instead of that returned by the system. The effectiveness of both separation of scale values and mathematical model of REVO is proved by experiments and practice. The research of this article is of great significance to the application of REVO five-axis system in the non-orthogonal coordinate measuring machine.

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Gao, Guan Bin, Wen Wang, Hong Qiang Li und Jian Jun Zhou. „Kinematic Modeling and Analysis of Articulated Arm Coordinate Measuring Machines“. Applied Mechanics and Materials 241-244 (Dezember 2012): 494–97. http://dx.doi.org/10.4028/www.scientific.net/amm.241-244.494.

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The articulated arm coordinate measuring machine (AACMM) is a new type coordinate measuring machine (CMM) base on the linkage structure with the characteristics of small size, light weight, large measurement range and flexible movement. The kinematic modeling methods of six degree of freedom (6-DOF) AACMMs are studied in this paper. By analyzing the structural characteristics of AACMMs the kinematic model of a 6-DOF AACMM with DH method was established. From the kinematic model the coordinate systems and structural parameters of the AACMM are obtained. Then the homogeneous transformation matrixes from the probe to the base of the AACMM are derived. Finally, methods of numerical computing and graphical simulation are used in verifying the kinematic model. The kinematic model provides a basis for measurement, calibration and error compensation of the AACMM.

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Serban, P. E., und F. Peti. „Studies related the measurement errors determination in case of inclined surfaces measurement on Coordinate Measurement Machines“. IOP Conference Series: Materials Science and Engineering 898 (25.08.2020): 012042. http://dx.doi.org/10.1088/1757-899x/898/1/012042.

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31

Rim, Chang-Hyon, Bai-Qing Sun, Yong-Gun Kim und Pyol Kim. „Analysis of Random Factors Affecting Measurement Accuracy of Portable Coordinate Measuring Arm“. MAPAN 34, Nr. 4 (09.07.2019): 529–39. http://dx.doi.org/10.1007/s12647-019-00323-x.

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32

Watanabe, M., und Ryoshu Furutani. „Development of a Sensitive Probe for Coordinate Measuring Machines“. Key Engineering Materials 295-296 (Oktober 2005): 325–30. http://dx.doi.org/10.4028/www.scientific.net/kem.295-296.325.

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Requirement for precision measurement becomes extremely advanced as industrial needs advances. CMM (Coordinate Measuring Machine) is one of the most adequate measuring machines to meet the requirement. As the precision of CMM becomes higher, it is important to improve the sensitivity of probe. We developed a contact type probe which consisted of a QPD (quadratic photo diode), a ball lens, and a laser diode to detect the displacement of stylus. The probe system has a resolution of 31nm.

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Ratajczyk, Eugeniusz. „New types of coordinate measuring machines and symbols used for their parameters Part III. Examples of cantilever type machines“. Mechanik 90, Nr. 7 (10.07.2017): 571–73. http://dx.doi.org/10.17814/mechanik.2017.7.76.

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Coordinate measuring machines of cantilever type are specifically intended for use in production environment, for measurement of the produced parts and machine elements, especially automotive parts. Common types of these machines are presented with their properties, such as measuring range and accuracy explained.

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Hawryluk, Marek, Marek Kuran und Jacek Ziemba. „The use of replicas in the measurement of machine elements with use of contact coordinate measurements“. Mechanik 91, Nr. 11 (12.11.2018): 958–60. http://dx.doi.org/10.17814/mechanik.2018.11.169.

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Modern technology allows to design and manufacture machine elements with complex geometry that makes it difficult or even impossible to use coordinate measuring machines for verification of them. The article presents the possibility of using replicas of product geometry to control geometric features using contact measurements on a coordinate machine.

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Peti, Ferencz, und Petru Serban. „Coordinate Measuring Machine Probes Effect during Inner Thread Position Measurement“. Proceedings 63, Nr. 1 (28.12.2020): 55. http://dx.doi.org/10.3390/proceedings2020063055.

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Starting from the idea of improving Coordinate Measuring Machines’ (CMM) measurement strategy for inner thread locations, we developed a new method which increases the accuracy of measurements and takes us closer to the pitch diameter. This article will analyze this new method by testing different touching probes configurations for different thread sizes. The objective is to identify the best probe configuration to be used in the measurements of different inner thread sizes.

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Peggs, G. N. „Súradnicové Meracie Stroje a ich Skúšanie (Coordinate Measurement Machines and their Testing)“. Precision Engineering 10, Nr. 2 (April 1988): 100. http://dx.doi.org/10.1016/0141-6359(88)90008-6.

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37

Rajamohan, G., M. Shunmugam und G. Samuel. „Practical Measurement Strategies for Verification of Freeform Surfaces Using Coordinate Measuring Machines“. Metrology and Measurement Systems 18, Nr. 2 (01.01.2011): 209–22. http://dx.doi.org/10.2478/v10178-011-0004-y.

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Practical Measurement Strategies for Verification of Freeform Surfaces Using Coordinate Measuring MachinesFreeform surfaces have wider engineering applications. Designers use B-splines, Non-Uniform Rational B-splines, etc. to represent the freeform surfaces in CAD, while the manufacturers employ machines with controllers based on approximating functions or splines. Different errors also creep in during machining operations. Therefore the manufactured freeform surfaces have to be verified for conformance to design specification. Different points on the surface are probed using a coordinate measuring machine and substitute geometry of surface established from the measured points is compared with the design surface. The sampling points are distributed according to different strategies. In the present work, two new strategies of distributing the points on the basis of uniform surface area and dominant points are proposed, considering the geometrical nature of the surfaces. Metrological aspects such as probe contact and margins to be provided along the sides have also been included. The results are discussed in terms of deviation between measured points and substitute surface as well as between design and substitute surfaces, and compared with those obtained with the methods reported in the literature.

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Aggogeri, Francesco, Giulio Barbato, Emanuele Modesto Barini, Gianfranco Genta und Raffaello Levi. „Measurement uncertainty assessment of Coordinate Measuring Machines by simulation and planned experimentation“. CIRP Journal of Manufacturing Science and Technology 4, Nr. 1 (Januar 2011): 51–56. http://dx.doi.org/10.1016/j.cirpj.2011.01.007.

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Gruszka, Józef, Michał Wieczorowski, Barbara Śmierzchalska, Maciej Szelewski, Ireneusz Zachwiej und Damian Śmierzchalski. „ITA Calibration Laboratory“. Mechanik 91, Nr. 5-6 (28.05.2018): 430–33. http://dx.doi.org/10.17814/mechanik.2018.5-6.53.

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In the paper a process of implementation of management system according to PN-EN ISO/IEC 17025 for ITA Calibration Laboratory was presented. Laboratory was granted an accreditation from PCA regarding calibration of universal testing machines and technological devices for tensile forces and compression forces as well as coordinate measurement systems with optical distance sensors and coordinate measurement systems based on technique of optical scanners for rotary symetrical work pieces.

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Baldo, Crhistian Raffaelo, und Gustavo Daniel Donatelli. „Experimental Performance Study of Industrial-Grade Coordinate Measuring Machines Using a Calibrated Production Workpiece“. Key Engineering Materials 613 (Mai 2014): 118–24. http://dx.doi.org/10.4028/www.scientific.net/kem.613.118.

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The measurement of a part on a coordinate measuring machine may be affected by many factors such as machine frame accuracy, probe configuration, measuring environment, and measurement strategy. In order to understand the effect of some of those factors on measurements performed in industrial-grade machines, a master production workpiece has been chosen and circulated in Brazilian industries for collecting data points of the calibrated workpiece features according to a predefined master measuring protocol. Conclusions could be drawn about the behavior of each machine under varying conditions, measurement divergences from similar machines operating under distinct conditions, the complexity of measurements with CMMs, and the need for good measurement practices in the productive sector.

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Harmatys, Wiktor, Michael Marxer, Piotr Gąska, Maciej Gruza und Adam Gąska. „The modelling of the measuring point reproduction error for optical coordinate measuring machines“. MATEC Web of Conferences 322 (2020): 01053. http://dx.doi.org/10.1051/matecconf/202032201053.

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Coordinate measuring machines (CMMs) are the most common measuring systems used for assessing the compliance of manufactured components with their geometrical specifications. Optical CMMs are currently gaining popularity as they enable fast and contactless measurement with accuracy almost as high as in case of tactile measurement. During the performing of measurement, the points at which the measurement is conducted are usually not exactly at the intended location, but due to different impacts (error sources), they are in the area surrounding this location. This paper presents a method for modelling the reproduction of point coordinates as probability ellipses geometrically limiting the area in which the actual measurement points may lie. Different mathematical algorithms for the description of these ellipses were examined and a discussion on the selection of the best method is presented in this paper.

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di Giacomo, Benedito, und César Augusto Galvão de Morais. „Mapping by Optimization of the Minimum Volumetric Error in Coordinate Measuring Machines“. Applied Mechanics and Materials 798 (Oktober 2015): 287–91. http://dx.doi.org/10.4028/www.scientific.net/amm.798.287.

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The CMM (coordinate measuring machines) are able to perform dimensional inspections in workpieces with complex geometries, in a short time compared to conventional methods, however, errors on volume of CMM harm the performance of measurement. Faced with this, the purpose this investigation is to identify regions in the machine with large and small values of volumetric errors. The mapping of volumetric error is performed by optimization of objective function with SQP method. The objective function is defined by modeling errors of the CMM using a method of the homogeneous transformation, and, by calibration curves of individual errors. The optimization allowed to obtain the smallest value of volumetric error, 1.1796 μm, located near the linear encoder of the y axis. The mapping the volumetric error by optimization allows to know regions with minor harm the performance of measurement, therefore, it's possible to select regions of measurement to obtain reliable results.

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Jiang, Zhihua, Wenjian Zhang und Lizhen Cui. „Research of three dimensional laser scanning coordinate measuring machine“. MATEC Web of Conferences 232 (2018): 02015. http://dx.doi.org/10.1051/matecconf/201823202015.

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Three dimensional laser scanning coordinate measuring machine is suitable for the measurement of 3D printing products, and its measuring range depends on the three coordinate measuring machine. It is the main 3D printing product measuring instrument [1]. In this paper, the principle of laser scanning three coordinate measuring machine is analyzed. The accuracy and reliability of the calibration system for 3D printing products are verified. According to the newly revised JJF 1064 Calibration specification for coordinate measuring machines [3], it is calibrated.

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Mayer, J. R. R., Y. A. Mir, F. Trochu, A. Vafaeesefat und M. Balazinski. „Touch probe radius compensation for coordinate measurement using kriging interpolation“. Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture 211, Nr. 1 (01.01.1997): 11–18. http://dx.doi.org/10.1243/0954405971516031.

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Obtaining CAD (computer aided design) descriptions of actual parts having complex surfaces is a key part of the process of reverse engineering. This paper is concerned with the estimation of actual surfaces using coordinate measuring machines fitted with a spherically tipped touch probe. In particular, it addresses in detail the problem of probe radius compensation. A general mathematical model, using kriging, is proposed which first generates the initial probe centre surface and then estimates the compensated or part surface. The compensation is achieved using normal vectors to the initial probe centre surface at each measured point to compensate for the probe radius. The method is validated experimentally on known and free-form surfaces.

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Altinisik, Armagan, und Emre Bolova. „A comparison of off-line laser scanning measurement capability with coordinate measuring machines“. Measurement 168 (Januar 2021): 108228. http://dx.doi.org/10.1016/j.measurement.2020.108228.

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Li, Rui-Jun. „Design of a large-scanning-range contact probe for nano-coordinate measurement machines“. Optical Engineering 51, Nr. 8 (14.05.2012): 081503. http://dx.doi.org/10.1117/1.oe.51.8.081503.

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Acko, Bojan, Michael McCarthy, Frank Haertig und Borut Buchmeister. „Standards for testing freeform measurement capability of optical and tactile coordinate measuring machines“. Measurement Science and Technology 23, Nr. 9 (25.07.2012): 094013. http://dx.doi.org/10.1088/0957-0233/23/9/094013.

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Echerfaoui, Younes, Abderrazak El Ouafi und Ahmed Chebak. „Experimental Investigation of Dynamic Errors in Coordinate Measuring Machines for High Speed Measurement“. International Journal of Precision Engineering and Manufacturing 19, Nr. 8 (August 2018): 1115–24. http://dx.doi.org/10.1007/s12541-018-0132-x.

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Lu, Jian, Guan Bin Gao und Hui Ping Yang. „Error Modeling and Analysis of Articulated Arm Coordinate Measuring Machines“. Advanced Materials Research 798-799 (September 2013): 464–67. http://dx.doi.org/10.4028/www.scientific.net/amr.798-799.464.

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The Articulated Arm Coordinate Measuring Machine (AACMM) is a new type of non-orthogonal system precision instrument with the advantages of large measuring range, small volume, low weight and portability. To improve the measurement accuracy of AACMMs, an error analysis and calibration method for AACMMs is proposed. The kinematic model of the AACMM was established with D-H model, and then the error model of the AACMM was established on the basis of kinematic model with total differential transforming method and the singular value decomposition of Jacobian matrix and the decomposition of orthogonal matrix elementary row transform. Finally, the error model was validated by position error residual calculation. The error model provides a theoretical foundation for calibration and compensation of the AACMM.

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Magdziak, Marek, und Dominika Ziaja. „Software Dedicated to Determining a Strategy of Coordinate Measurements“. Materials Science Forum 957 (Juni 2019): 179–86. http://dx.doi.org/10.4028/www.scientific.net/msf.957.179.

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The paper presents the developed software dedicated to determining a measurement strategy of contact coordinate measurements conducted by using coordinate measuring machines. The created software enables to calculate locations of the scanning lines along free-form surfaces of measured workpieces. The presented program was developed by using the MATLAB software. The created program was tested based on the selected examples of curvilinear surfaces. Measurement points were located in the parts of surfaces characterized by the biggest form deviations resulting from machining processes. The calculated deviations were the results of simulations performed by using selected CAM software. The presented software increases the efficiency of measurement processes.

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