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The inconvenient loading and unloading of a long and heavy drill pipe gives rise to the difficulty in measuring the contour parameters of its threads at both ends.
Zhixu Dong +3 more
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The COSMOS Plate Measuring Machine [PDF]
The new 48-in. Schmidt telescope of the U.K. Science Research Council is being commissioned at Siding Spring in Australia. Its potential both for extra-galactic and galactic research is enormous but this potential can only be fully exploited with an automatic measuring machine.
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Automated planning to minimise uncertainty of machine tool calibration [PDF]
When calibrating a machine tool, multiple measurement tasks will be performed, each of which has an associated uncertainty of measurement. International Standards and best-practice guides are available to aid with estimating uncertainty of measurement ...
Longstaff, Andrew P. +8 more
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Now equipped with touch trigger probes machine tools are increasingly used to measure workpieces for various tasks such as rapid setup, compensation of final tool paths to correct part deflections and even verify conformity to finished tolerances.
Heidarali Hashemiboroujeni +3 more
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The RIPE NCC internet measurement data repository [PDF]
This paper describes datasets that will shortly be made available to the research community through an Internet measurement data repository operated by the RIPE NCC.
McGregor, Anthony James +2 more
core +1 more source
Roundness Deviation Measuring Strategy At Coordination Measuring Machines And Conventional Machines
Today technological process makes possible surface control of producing parts which is needful for product quality guarantee. Geometrical structure of part surface includes form, proportion, accuracy to shape, accuracy to size, alignment and surface topography (roughness, waviness, etc.).
Ocenašova, Lenka +6 more
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Measurement of Free-Form Curved Surfaces Using Laser Triangulation
Laser triangulation (LT) is widely used in many fields due to its good stability, high resolution and fast speed. However, the accuracy in these applications suffers from severe constraints on the data acquisition accuracy of LT.
Zhixu Dong +3 more
doaj +1 more source
Feasibility study of multi-point two-dimensional profile measurement by 3-2-1 and 3×3 sensor layout
New multi-point methods, the six-point method of 3-2-1 sensor layout and the nine-point method of 3 × 3 sensor layout, have been proposed as the two-dimensional profilometry for a machined flat surface.
Ryotaro Fujiwara, Hiroki Shimizu
doaj +1 more source
In the aerospace manufacturing industry, it is impossible to achieve precise and efficient automatic drilling and riveting for largescale composite board parts.
Nianhan Wu +4 more
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