CIRP Interlaboratory Comparison of Coordinate Measuring Machines using an Optomechanical Hole Plate

Publication: Research - peer-reviewReport – Annual report year: 2005

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An interlaboratory comparison on mechanical and optical coordinate measuring machines (CMMs) has been organized by the Centre for Geometrical Metrology (CGM), Department of Manufacturing Engineering and Management (IPL), Technical University of Denmark (DTU) and carried out within Collège International pour l'Etude Scientifique des Techniques de Production Mécanique (CIRP). In the project, 15 research laboratories have been involved from 9 countries: Belgium, Denmark, Germany, Italy, Poland, Spain, Switzerland, United Kingdom, USA. A total of 24 CMMs were used to measure an optomechanical hole plate [1], designed and manufactured by DTU. A measurement procedure was sent to each participant together with the hole plate to be measured. The procedure consists mainly of two parts [2]: 1) four reversal measurements, by which the systematic errors in the measuring plane (X,Y) on the CMM are eliminated, except the positioning errors; 2) transfer of traceability by comparator measurement using a length reference chosen by the participant, by which the positioning errors are eliminated. Furthermore, a third optional part could be carried out by the participant, using a different measurement procedure of own choice. The same measurement procedure has been applied using an optical coordinate measuring machine located in the laboratory of Centre for Geometrical Metrology (CGM) at the Department of Manufacturing Engineering and Management (IPL), Technical University of Denmark (DTU), after the Interlaboratory comparison was concluded.
Original languageEnglish
Publication date2005
PublisherInstitut for Produktion og Ledelse, DTU
Number of pages17
StatePublished
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