Thematische Bibliographien / Portable coordinate measurement machines

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Auswahl der wissenschaftlichen Literatur zum Thema „Portable coordinate measurement machines“

Autor: Grafiati

Veröffentlicht am 28. Juni 2021

Zuletzt aktualisiert am 15. Februar 2022

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Zeitschriftenartikel zum Thema "Portable coordinate measurement machines"

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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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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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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Dissertationen zum Thema "Portable coordinate measurement machines"

Polášek, Ondřej. „Metrologické charakteristiky měřícího ramene Hexagon Absolute Arm 83“. Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2021. http://www.nusl.cz/ntk/nusl-442824.

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This study analyzes current trends in metrology in the field of portable coordinate measuring machines and describes current methods for measurement system and process evaluation. Obtained knowledge is applied, in order to evaluate the capability of measurement system, which consists of articulated measurement arm and measurement standard.

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Lombardi, Marco. „Optimization of composite carriage for a coordinate measurement machine“. Thesis, This resource online, 1994. http://scholar.lib.vt.edu/theses/available/etd-06112009-063037/.

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Huddart, Yvonne R. „Non-contact free-form shape measurement for coordinate measuring machines“. Thesis, Heriot-Watt University, 2010. http://hdl.handle.net/10399/2725.

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Precision measurement of manufactured parts commonly uses contact measurement methods. A Coordinate Measuring Machine (CMM) mounted probe touches the surface of the part, recording the probe’s tip position at each contact. Recently, devices have been developed that continuously scan the probe tip across the surface, allowing points to be measured more quickly. Contact measurement is accurate and fast for shapes that are easily parameterized such as a sphere or a plane, but is slow and requires considerable user input for more general objects such as those with free-form surfaces. Phase stepping fringe projection and photogrammetry are common non-contact shape measurement methods. Photogrammetry builds a 3D model of feature points from images of an object taken from multiple perspectives. In phase stepping fringe projection a series of sinusoidal patterns, with a phase shift between each, is projected towards an object. A camera records a corresponding series of images. The phase of the pattern at each imaged point is calculated and converted to a 3D representation of the object’s surface. Techniques combining phase stepping fringe projection and photogrammetry were developed and are described here. The eventual aim is to develop an optical probe for a CMM to enable non-contact measurement of objects in an industrial setting. For the CMM to accurately report its position the probe must be small, light, and robust. The methods currently used to provide a phase shift require either an accurately calibrated translation stage to move an internal component, or a programmable projector. Neither of these implementations can be practically mounted on a CMM due to size and weight limits or the delicate parts required. A CMM probe consisting of a single camera and a fringe projector was developed. The fringe projector projects a fixed fringe pattern. Phase steps are created by moving the CMM mounted probe, taking advantage of the geometry of the fringe projection system. New techniques to calculate phase from phase stepped images created by relative motion of probe and object are proposed, mathematically modelled, and tested experimentally. Novel techniques for absolute measurement of surfaces by viewing an object from different perspectives are developed. A prototype probe is used to demonstrate measurements of a variety of objects.

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Yang, Qingping. „A hig precision probe system for three dimensional coordinate measurement“. Thesis, Brunel University, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.339317.

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Bittle, Steven Douglas. „An active piezoelectric probe for precision measurement on a coordinate measuring machine (CMM)“. Thesis, Georgia Institute of Technology, 1996. http://hdl.handle.net/1853/18186.

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Kirkland, Eric Alan. „A nano coordinate machine for optical dimensional metrology“. Thesis, Georgia Institute of Technology, 2003. http://hdl.handle.net/1853/16525.

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Shi, Quan. „Develop rapid 3D surface measurement systems for quality inspection in the manufacturing industry“. Diss., Connect to online resource - MSU authorized users, 2008.

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Thesis (PH.D.)--Michigan State University. Electrical and Computer Engineering, 2008.
Title from PDF t.p. (viewed on Aug. 11, 2009) Includes bibliographical references (p. 118-121). Also issued in print.

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SARAVANAN, SHANKAR. „EVALUATION OF SPHERICITY USING MODIFIED SEQUENTIAL LINEAR PROGRAMMING“. University of Cincinnati / OhioLINK, 2005. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1132343760.

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Garza-Delgado, Abelardo. „A study of casting distortion and residual stresses in die casting“. Columbus, Ohio : Ohio State University, 2007. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1196175848.

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Avvari, Ddanukash. „A Literature Review on Differences Between Robotic and Human In-Line Quality Inspection in Automotive Manufacturing Assembly Line“. Thesis, Mälardalens högskola, Akademin för innovation, design och teknik, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:mdh:diva-56038.

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The advent of the industrial revolution has brought a great number of changes in the functioning of various processes in manufacturing industries. The ways and means of working have evolved exponentially with the implementation of advanced technology. Moreover, with the increasing technology, the customer demands have also been varying dynamically due to changes in customer requirements focusing on individual customization. To cope with the dynamic demand, manufacturing industries had to make sure their products are manufactured with higher quality and shorter lead times. Implementation and efficient usage of technology has provided industries with the necessary tools to achieve market demand and stay competitive by growing continuously. The transformation aims to reach the level of zero-defect manufacturing and ensure higher first-time right yield capability with minimum utilization of available resources. However, technological advancements have not developed the quality inspection process of the manufacturing industry at the same level as other processes. Due to this, the quality inspection processes are still human dependent which requires a highly skilled human operator to perform inspection procedures using sensory abilities to detect deviations. Research suggests that human quality inspection is prone to errors due to fatigue as the process is continuous, strenuous, and tedious work. The efficiency of human inspection is around 80% which becomes a chronic problem in safety-critical and high-value manufacturing environments. Moreover, with the increasing level of customization and technology, the products are becoming more complex with intricate shapes and only human inspection is not enough to meet the customer requirements. Especially in the case of automotive industry in Body in White applications, human inspection of outer body panels, engine parts with tighter tolerances alone does not make the cut. Advancements in the field of metrology have led to the introduction of Coordinate measuring machines (CMM), which are classified as contact and non-contact measuring machines. The measurements are performed offline away from the production line, using the sampling method. The contact measuring machines are equipped with touch trigger probe devices that travel all over the part to make a virtual image of the product which is time-consuming but accurate. Whereas the noncontact measuring machines are equipped with laser scanners or optical devices which scan the part and develop a virtual model which is fast but has accuracy and repeatability issues due to external factors. But coordinate measuring machines have proven to be bottlenecks as they were not able to synchronize with the production pace and could not perform aninspection on all the produced parts, which would help in collecting data. The gathered data can be used to analyse root causes and generate trends in defect detection. With the advancements in non-contact measuring systems, automotive industries have also realized the potential of implementing inline measurement techniques to perform quality inspection. The non-contact measuring system consists of a robotic arm or setup which is equipped with a camera, sensors, and a complex algorithm to identify defects. This provides the robotic arm with machine vision which is works by taking a series of images of the product from various and process these images to detect deviations using digital image processing techniques. The inline measurement has proven to be accurate, fast, and repeatable to be implemented in synchronization with the production line. Further, the automotive industries are moving towards hybrid inspection systems which capitalize on the measuring speed of the robot and the fast decision-making ability of human senses.

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Bücher zum Thema "Portable coordinate measurement machines"

Chikurov, Nikolay. Mathematical problems of coordinate measuring machines. ru: INFRA-M Academic Publishing LLC., 2020. http://dx.doi.org/10.12737/1163946.

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The monograph discusses solutions to mathematical problems related to the measurement of various machine-building parts on coordinate measuring machines (CMM). In addition, a number of mathematical problems that arise when measuring parts on the CMM are solved. The method of carrying out the corresponding measurements and mathematical calculations is given. It is intended for specialists who develop and maintain CMM control systems, for CMM operators, as well as for students of technical universities of relevant specialties.

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AUTOCOM '89 (1989 Dearborn, Mich.). AUTOCOM '89: June 5-8, 1989, Dearborn, Michigan ; Precision Metrology with Coordinate Measurement Systems Clinic, June 6-7, 1989, Schaumburg, Illinois ; Automated Material Handling System Clinic, June 6-7, 1989, Dearborn, Michigan. Dearborn, Mich. (P.O. Box 930, Dearborn 48121): Society of Manufacturing Engineers, 1989.

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Phillips, S. D. Measurement and uncertainty considerations for coordinate measuring machines. 1993.

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Buchteile zum Thema "Portable coordinate measurement machines"

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“. In Key Engineering Materials, 331–36. Stafa: Trans Tech Publications Ltd., 2005. http://dx.doi.org/10.4028/0-87849-977-6.331.

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Suresh, Ashik, und P. B. Dhanish. „Measurement of Bores Using Scanning Mode of Articulated Arm Coordinate Measuring Machines“. In Advances in Forming, Machining and Automation, 649–58. Singapore: Springer Singapore, 2019. http://dx.doi.org/10.1007/978-981-32-9417-2_54.

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„Measurement Integration“. In Coordinate Measuring Machines and Systems, 533–40. CRC Press, 2016. http://dx.doi.org/10.1201/b11022-21.

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„Evolution of Measurement“. In Coordinate Measuring Machines and Systems, 19–48. CRC Press, 2016. http://dx.doi.org/10.1201/b11022-4.

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„Measurement Uncertainty for Coordinate Measuring Systems“. In Coordinate Measuring Machines and Systems, 389–404. CRC Press, 2016. http://dx.doi.org/10.1201/b11022-17.

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Hocken, Robert, und John Bosch. „Evolution of Measurement“. In Coordinate Measuring Machines and Systems, Second Edition, 1–30. CRC Press, 2011. http://dx.doi.org/10.1201/b11022-2.

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Gonzalez-Madruga, Daniel, Eduardo Cuesta, Joaquin Barreiro, Susana Martinez Pellitero und Braulio J. Alvarez. „Real-Time Contact Force Measurement System for Portable Coordinate Measuring Arms“. In Proceedings of the 23rd International DAAAM Symposium 2012, 0267–72. DAAAM International Vienna, 2012. http://dx.doi.org/10.2507/23rd.daaam.proceedings.062.

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Rath, Mamata, Jhum Swain, Bibudhendu Pati und Binod Kumar Pattanayak. „Network Security“. In Handbook of Research on Network Forensics and Analysis Techniques, 19–37. IGI Global, 2018. http://dx.doi.org/10.4018/978-1-5225-4100-4.ch002.

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This chapter describes how with the rapid increase of internet users, more people have access to global information and communication technology. As a result of which, the issues of using the internet as a global platform for the enabling of smart objects and machines to coordinate, communicate, compute and calculate, gradually emerge. In Mobile Ad-hoc Networks (MANETs) the individual nodes are self-reconfigurable according to the changes of the network topology. Joint effort between portable hubs is more critical because they face major challenges such as powerlessness to work safely while protecting its assets and performing secure steering among hubs. With the existence of malicious nodes, one of the principal challenges in MANETs is to outline powerful security arrangement that can shield MANETs from various routing attacks. This chapter highlights major attacks and control mechanism in MANETs with an intention that it will open directions for researchers to explore more in the field of network security. At the end of this chapter, basic security mechanisms and issues related to emergence of IoT from Mobile networks has been highlighted.

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Konferenzberichte zum Thema "Portable coordinate measurement machines"

Jun Guo und YueZong Wang. „Study on calibration technology of portable coordinate measuring machines“. In 2011 International Conference on Electronics and Optoelectronics (ICEOE). IEEE, 2011. http://dx.doi.org/10.1109/iceoe.2011.6013454.

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Ren, Tongqun, Jigui Zhu und Yinbiao Guo. „Study on portable optical 3D coordinate measuring system“. In 4th International Symposium on Advanced Optical Manufacturing and testing technologies: Optical Test and Measurement Technology and Equipment, herausgegeben von Yudong Zhang, James C. Wyant, Robert A. Smythe und Hexin Wang. SPIE, 2009. http://dx.doi.org/10.1117/12.828628.

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Molina, Javier. „Proposed methodologies to reduce measurement error impact on coordinate measurement machines“. In Merida - DL Tentative, herausgegeben von R. Rodriguez-Vera und F. Mendoza-Santoyo. SPIE, 2005. http://dx.doi.org/10.1117/12.611636.

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Kim, Seungman, Jungsuk Oh, Seong-Heum Han, Quoc-Khanh Nguyen, Seung-Kook Ro, Seung-Woo Kim und Wooram Kim. „Multiple absolute distances-based 3D coordinate measurement system for mobile machines“. In Applied Optical Metrology III, herausgegeben von Erik Novak und James D. Trolinger. SPIE, 2019. http://dx.doi.org/10.1117/12.2528343.

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Karuc, E., E. Kilic und M. Dolen. „A measurement probe for coordinate measuring machines based on GMR technology“. In 2013 IEEE International Conference on Mechatronics (ICM). IEEE, 2013. http://dx.doi.org/10.1109/icmech.2013.6518521.

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Ruzanov, N. V., M. A. Bolotov und V. A. Pechenin. „Probability-Theoretical Model for Estimating Measurement Errors of Coordinate Measuring Machines“. In 2018 International Multi-Conference on Industrial Engineering and Modern Technologies (FarEastCon). IEEE, 2018. http://dx.doi.org/10.1109/fareastcon.2018.8602790.

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Hrabina, Jan, Josef Lazar und Ondrej Cip. „Uncertainties of displacement measurement of nanometrology coordinate measurement machines caused by laser source fluctuations“. In SPIE Photonics Europe, herausgegeben von Christophe Gorecki, Anand K. Asundi und Wolfgang Osten. SPIE, 2012. http://dx.doi.org/10.1117/12.922439.

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Yang, Huiping, Guanbin Gao und Wen Wang. „Design of a data acquisition system of articulated arm coordinate measuring machines“. In International Symposium on Precision Engineering Measurement and Instrumentation, herausgegeben von Junning Cui, Jiubin Tan und Xianfang Wen. SPIE, 2015. http://dx.doi.org/10.1117/12.2180840.

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Schneider, Florian, Rolf Rascher, Richard Stamp und Gordon Smith. „A simple procedure to include a free-form measurement capability to standard coordinate measurement machines“. In SPIE Optifab, herausgegeben von Julie L. Bentley und Matthias Pfaff. SPIE, 2013. http://dx.doi.org/10.1117/12.2028758.

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Wang, Sen, Guanbin Gao, Jun Zhao, Jing Na und Wen Wang. „Kinematics identification and measurement accuracy verification of articulated arm coordinate measuring machines“. In 10th International Symposium on Precision Engineering Measurements and Instrumentation (ISPEMI 2018), herausgegeben von Jiubin Tan und Jie Lin. SPIE, 2019. http://dx.doi.org/10.1117/12.2511790.

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Berichte der Organisationen zum Thema "Portable coordinate measurement machines"

Caskey, G. Measurement uncertainty considerations for coordinate measuring machines. Gaithersburg, MD: National Institute of Standards and Technology, 1993. http://dx.doi.org/10.6028/nist.ir.5170.

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Rasnick, B., B. Cox und M. Sherrill. Determination of measurement uncertainty on coordinate measurement machines by measurement decomposition and utilization of canonical artifacts. Office of Scientific and Technical Information (OSTI), August 1996. http://dx.doi.org/10.2172/442078.

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