Showing 1-25 of 4,620 resultsfor "Index Terms":Coordinate measuring machines
"Index Terms":Coordinate measuring machines
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A high-precision stability measurement scheme was designed and prototyped with the purpose of ensuring precise laser beam alignment during the assembly of an integrated interferometer. With retroreflectors added, the angular resolution of the system is improved while ensuring system stability. Hydroxide-catalysis bonding technology is used to create a stress-free bond between the various optical c...Show More
Research on a Novel Method for Measuring Volumetric Error of Coordinate Measuring Machine
2010 International Conference on Measuring Technology and Mechatronics Automation
Year: 2010 | Conference Paper |
Cited by: Papers (2)
CMM (Coordinate Measuring Machine) is used as an accurate measuring instrument in manufacturing and design of products. High accurate CMM is required by the development of super-finish, micro-machinery, micro-electronic mechanical systems (MEMS). The precision of CMM is influenced by its volumetric error and dynamic error. The volumetric error is the major component during slowly probing, but the ...Show More
Research on the Kinemics and Workspace of Articulated Arm Coordinate Measuring Machine
2016 8th International Conference on Intelligent Human-Machine Systems and Cybernetics (IHMSC)
Year: 2016 | Conference Paper |
The traditional method to solve the problem of working space of articulated arm coordinate measuring machine needs applying complex mathematical formulas with large calculating quantities. To solve this problem, the Monte Carlo method was used to analyze the working space. Firstly, the D-H method was used to establish the mathematical model of articulated arm coordinate measuring in order to obtai...Show More
Iterative Algorithm for Radius Stylus Compensation of Touch Sensor When Measured on CMMs of Complex Surfaces
Fedor V. Grechnikov;Igor P. Popov;Andrei V. Kochetkov;Oleg V. Zakharov
2018 XIV International Scientific-Technical Conference on Actual Problems of Electronics Instrument Engineering (APEIE)
Year: 2018 | Conference Paper |
Cited by: Papers (2)
When measuring on the Coordinate Measuring Machines by a contact method, an error arises in determining the touch point of the probe and the actual surface. Therefore, the obligatory stage of mathematical processing of results is the compensation of the touch probe radius. The efficiency of the known compensation algorithms is characterized by the measurement error and the processing time of the i...Show More
Mathematical Model for Touching of Spherical Probe and Complex Measured Surface at CMMs
2018 International Russian Automation Conference (RusAutoCon)
Year: 2018 | Conference Paper |
To measure complex surfaces, a wide application was made of Coordinate Measuring Machines that use the contact method. The first task in the measurement is to determine the coordinates of the sensor contact point and the surface. The touch sensor locks the coordinates of the center of the spherical probe at the moment of contact with the surface. However, the coordinates of the contact point on th...Show More
SPC as an Instrument for Implementation and MSA as an Instrument for Evaluation of Non-Linear Object Based Temperature Compensation into Shop Floor CMM
2023 15th Electrical Engineering Faculty Conference (BulEF)
Year: 2023 | Conference Paper |
Trends for the application of Shop Floor Coordinate Measuring Machines (CMMs) in a changing ambient environment are driving new requirements for them. This necessitates the outcome of proven methods to provide improvement to enhance the metrological and performance characteristics of Shop Floor CMMs. To evaluate the stability of the measurement process we use SPC through which we implement nonline...Show More
Noncontact 3-D Coordinate Measurement of Cross-Cutting Feature Points on the Surface of a Large-Scale Workpiece Based on the Machine Vision Method
Three-dimensional coordinate measurement of feature points on the surface of a large-scale workpiece is important and difficult. Various relative measuring methods have been presented in recent years, and the machine vision method has been paid more attentions by researchers. The application of the machine vision method in 3-D coordinate measurement of feature points on the surface of a large-scal...Show More
Learning robot behavior with artificial neural networks and a coordinate measuring machine
The 5th International Conference on Automation, Robotics and Applications
Year: 2011 | Conference Paper |
Cited by: Papers (6)
In this paper the design and evaluation of artificial neural networks for learning static and dynamic positioning behavior of an industrial robot are presented. For the collection of training data, an approach based on the Levenberg-Marquardt algorithm was used to calibrate the robot and the coordinate measuring machine to a common reference system. The network design was developed and verified by...Show More
Probability-Theoretical Model for Estimating Measurement Errors of Coordinate Measuring Machines
2018 International Multi-Conference on Industrial Engineering and Modern Technologies (FarEastCon)
Year: 2018 | Conference Paper |
Cited by: Papers (2)
One of the parameters for determining the quality of manufacturing of coordinate measuring machines (CMM) is the measurement error achieved by using these machines. Obtaining an estimate of measurement error based on practical experiments is a complex task. In this paper, we present a mathematical model of the measurement process on a coordinate measuring machine. The model is implemented on the b...Show More
Portable Coordinate Measuring Machine
Basem Yousef;Ibrahim Chekfeh;Mohammed Hallalo;Mohammed Al Darmaki;Mohamad Kharseh;Khaled Al-Aribe
2022 International Conference on Electrical and Computing Technologies and Applications (ICECTA)
Year: 2022 | Conference Paper |
Many industrial and medical applications necessitate knowing or tracking, instantaneously, the position and orientation of objects relative to a known reference with high accuracy. Also quick setup time and calibration is always desired if the information is needed for real-time on-site application. Available coordinate measuring machines and surface profilers lack for orientation tracking, and av...Show More
New algorithm of measuring the cone section with the coordinate machine measurement
Enguo Wang;Yinhan Gao;Chengzhi Su;Peizhang Yu;Mingyi Jiang;Yang Liu
2012 International Conference on Optoelectronics and Microelectronics
Year: 2012 | Conference Paper |
Cited by: Papers (1)
A new method for measuring a given cross-section diameter of the cone by the coordinate measuring machine is presented in this paper. Firstly, the surface of the cone is sampled by the coordinate measuring machine, then the cone equation parameters are obtained based on these data. Secondly, sample the circle of the conical cross section in the specified location. Thirdly the linear interpolation ...Show More
Reduction of machining motion error of an aspheric surface coordinate measuring machine by a new error compensation method
The 9th IEEE International Conference on Nano/Micro Engineered and Molecular Systems (NEMS)
Year: 2014 | Conference Paper |
This paper suggests a new method to reduce the machine motion errors of a 2-dimension aspheric surface measuring. Using the laser interferometer to measure the site error of each point instead of the position error, straightness error and yaw and pitch error. Through error compensation of the new method, the simulation results and verification experiments showed that the site errors agree well wit...Show More
Structural Parameter Identification for Articulated Arm Coordinate Measuring Machines
2009 International Conference on Measuring Technology and Mechatronics Automation
Year: 2009 | Conference Paper |
Cited by: Papers (15)
Errors of structural parameters are the most important factors causing uncertainty of articulated arm coordinate measuring machines (AACMMs). Therefore these parameters must be identified to insure the accuracy of AACMMs. The kinematic model of six degree of freedom (6-DOF) AACMMs was established, and the structural parameters influencing the accuracy of AACMMs were achieved through analysis. A me...Show More
Kinematic Calibration for Articulated Arm Coordinate Measuring Machines Base on Particle Swarm Optimization
2009 Second International Conference on Intelligent Computation Technology and Automation
Year: 2009 | Conference Paper |
Cited by: Papers (12)
Kinematic calibration is one of the most important ways to improve the accuracy of articulated arm coordinate measuring machines (AACMMs). The kinematic model of six degree of freedom (6-DOF) AACMMs was established by Denavit-Hartenberg method. One calibration technology base on particle swarm optimization (PSO) was presented, which used single-point repeatability as the fitness function and kinem...Show More
Analysis of CMM dynamic measurement error based on kernel estimation
2017 32nd Youth Academic Annual Conference of Chinese Association of Automation (YAC)
Year: 2017 | Conference Paper |
Cited by: Papers (2)
To overcome the sources of dynamic measurement error which are intricate and influence each other so that makes it difficult to model by parameter identification method in coordinate measuring machine's dynamic measurement error model. This article use kernel estimation to analyze the complicated relationship between dynamic measurement error values and three dimensional coordinates and direct com...Show More
Without Differential method for determining the points of tangency with rotation surfaces when measured on CMMs
Oleg V. Zakharov;Fedor V. Grechnikov;Nikolaj M. Bobrovskij;Andrei V. Kochetkov;Igor N. Bobrov-skij;Andrey A. Korolev
2016 13th International Scientific-Technical Conference on Actual Problems of Electronics Instrument Engineering (APEIE)
Year: 2016 | Conference Paper |
Cited by: Papers (1)
Progress in the advanced branches of technology has caused the need to manufacture parts of highly complex shapes that are often found through experimenting and only later is described with mathematical models. Most coordinate-measuring machines (CMM) now available have their capability based on implementation of the Cartesian coordinate system. This feature has become a bottleneck on the way to c...Show More
Evaluation of Roundness Error Measured by Articulated Coordinate Measuring Machine
Ting Pan;Qingshan Chen;Lianqing Zhu;Yangkuan Guo;Zhikang Pan
2012 Second International Conference on Instrumentation, Measurement, Computer, Communication and Control
Year: 2012 | Conference Paper |
Cited by: Papers (1)
Roundness error is a shape error that affects the performance of mechanical parts, especially rotary motion performance. Its measurement generally needs to be carried out in the normal section of the work-piece. Articulated coordinate measuring machine is a manual in-situ measuring instruments widely applied in production line, which cannot execute measurement strictly in a cross-section. This pap...Show More
Research on Inspection Method of Space Error in Coordinate Measuring Machine
2020 5th International Conference on Mechanical, Control and Computer Engineering (ICMCCE)
Year: 2020 | Conference Paper |
With the development of science and technology and the progress of society, people put forward higher and higher requirements for the quality of products. As the key equipment to ensure the measurement and processing accuracy of workpiece, coordinate measuring machine and CNC machine tool, especially for the post-processing inspection of manufacturing parts, can play a key role in the inspection o...Show More
ACO-Based multiple geometric elements measure path planning for CMM
2010 International Conference on Computer Application and System Modeling (ICCASM 2010)
Year: 2010 | Conference Paper |
Effective path planning is very important to improve the measure efficiency and security of Coordinate Measuring Machine (CMM). In order to apply ACO to measure path planning, some key technologies such as establishment of relationship matrix and search of valid path were solved through thorough researches to CMM path planning and Ant Colony Optimization (ACO). Based on this, an ACO-Based multiple...Show More
Route Optimization in Measuring Surfaces on Coordinate Measuring Machines
2019 3rd School on Dynamics of Complex Networks and their Application in Intellectual Robotics (DCNAIR)
Year: 2019 | Conference Paper |
One of the current problems in measuring surfaces on Coordinate Measuring Machines is currently increasing productivity. A promising way to solve this problem is to optimize the route of the touch sensor of Coordinate Measuring Machines. Currently this task has no standard mathematical solution. In this regard, we propose to optimize the route of measurement based on the spatial Traveling Salesman...Show More
Non-Contact 3D Coordinates Measurement of Cross-Cutting Feature Points on the Surface of Large-Scale Workpiece Based on Machine Vision Method
2005 IEEE Instrumentationand Measurement Technology Conference Proceedings
Year: 2005 | Conference Paper |
Cited by: Papers (1)
3D coordinates measurement of feature points on the surface of large-scale workpiece is important and difficult, various relative measuring methods have been presented in recent years, and machine vision method has been paid more attentions by researchers. The application of machine vision method in the 3D coordinate measurement of feature points on the surface of large-scale workpiece is discusse...Show More
Light Pen Calibration for a Monocular-Vision-Based Coordinate Measuring System
2015 7th International Conference on Intelligent Human-Machine Systems and Cybernetics
Year: 2015 | Conference Paper |
Cited by: Papers (2)
A monocular-vision-based coordinate measuring system obtains the 3-D coordinate via calculating the position of a light pen in camera coordinate system which is disturbed seriously by the locational precision of target points. In this paper, a concise onsite light pen calibration method is proposed. It includes three steps. First, the intrinsic and extrinsic camera parameters are estimated from se...Show More
A DBB-based accuracy measurement method for rotary axes of high speed 5-axis CNC machining center
2010 International Conference on Mechanic Automation and Control Engineering
Year: 2010 | Conference Paper |
The equipment of 2 rotary axes on 5-axis CNC machining centers provided 2 more degrees of freedom (DOF) between the workpiece and the tool, as well as more geometrical errors. There was not authoritative method to measure the alignment errors of rotary axes. A novel method was proposed in this paper to assess the main alignment errors of C-axis of 5-axis CNC machining center by using double-ball-b...Show More
Measuring geometrical errors of linear axis of machine tools based on the laser tracker
2011 IEEE International Conference on Robotics and Biomimetics
Year: 2011 | Conference Paper |
Cited by: Papers (2)
Linear axis is the fundamental part which is widely used in multi-axis machine tools. In order to refine the capability of multi-axis machine tools, efficient error compensation method should be developed, which necessitates effective error measurement method too. In this study, a simple method based on the laser tracker is proposed for measuring six geometrical error components of linear axis of ...Show More
Method of three-point for measurement of micro-table position and posture
2009 9th International Conference on Electronic Measurement & Instruments
Year: 2009 | Conference Paper |
The paper describes a new theory and method to measure the error of micro-table 3D motion based on machine vision. Making the centre of three standard small spheres put over micro-table as mark points characterize the pose of table in 3D space. Based on machine vision, through visual tracking of the three standard spheres in 3D space, we can ascertain the pose of table in 3D space and measure the ...Show More
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