Results 21 to 30 of about 2,640 (165)
Development of a Coordinate Measuring Machine—Based Inspection Planning System for Industry 4.0
Industry 4.0 represents a new paradigm which creates new requirements in the area of manufacturing and manufacturing metrology such as to reduce the cost of product, flexibility, mass customization, quality of product, high level of digitalization ...
Slavenko M. Stojadinovic +4 more
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Approximate models of CMM behaviour and point cloud uncertainties
Coordinate metrology can be thought of as a two-stage process, the first stage using a coordinate measuring system to gather coordinate data – point clouds – related to a workpiece surface, the second extracting a set of parameters or characteristics ...
Alistair Forbes
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Alternate methods for sampling in coordinate metrology [PDF]
A variety of inspection equipment exists in industry to capture the points on a surface that will envisage manufacturing form errors. Manufacturing inspection faces a problem of finding optimal methods to capture an evenly spread distribution of points on the surface. Sampling does not yield complete information about a surface.
C E Collins +3 more
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Sensitivity Analysis for Gaussian-Associated Features
This paper is concerned with the evaluation of the uncertainties associated with Gaussian-associated features following the GUM methodology. We show how sensitivity matrices necessary for a GUM uncertainty evaluation can be calculated and how the ...
Alistair Forbes
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Nowadays, simulators facilitate tasks performed daily by the engineers of different branches, including coordinate metrologists. Sometimes it is difficult or almost impossible to program a Coordinate Measuring Machine (CMM) using standard methods.
Gąska A. +4 more
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Evaluation of metrology technologies for free form surfaces [PDF]
This research work describes a novel approach for comparing different technologies for free form surface metrology: computerized tomography (CT), photogrammetry and coordinate measuring machines (CMM).
Arámbula K. +4 more
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Fringe projection profilometry in combination with other optical measuring technologies has established itself over the last decades as an essential complement to conventional, tactile measuring devices.
Lennart Hinz +15 more
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A Unified Theory for 3D Gear and Thread Metrology
We propose a unified theory for the metrological treatment of helical machine elements such as cylindrical and conical gears, worms, and screw threads. The main idea is to introduce a universal 3D geometry model for threaded components that provides for ...
Martin Stein +2 more
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Generation of numerical artefacts for geometric form and tolerance assessment [PDF]
This paper describes an approach to generating reference data sets to evaluate the performance of algorithms used in coordinate metrology for form and geometric tolerance assessment.
Forbes A. B., Minh H. D.
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During the last years, the use of Portable Coordinate Measuring Machines (PCMMs) in industry has increased considerably, mostly due to their flexibility for accomplishing in-line measuring tasks as well as their reduced costs and operational advantages ...
Agustín Brau Avila +2 more
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