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First International Involute Gear Comparison
Seven national metrology institutes have carried out the first international intercomparison in the field of gear metrology organized from the EURAMET (European Association of National Metrology Institutes) with non-European involvement. As leader the Physikalisch-Technische Bundesanstalt (PTB) provided three of their involute gear artifacts and sent them to the participants from China, Japan, Thailand, United Kingdom, Ukraine and USA. Each of the institutes measured the profile, helix and the pitch artifact and evaluated the specified measurands. The results collected and evaluated by the PTB were compared and analyzed by evaluating the normalized error En. At the end of this comparison the large distribution of the results which lay in the range of today's required tolerances in industry pose a lot of questions. The presentation explains details of the measurement setup and evaluation parameter, damages of some artefacts due to unqualified handling, and finally the interesting results.
ISBN: 978-1-61481-003-2 Pages: 11
Authors: F. Härtig, W. Adeyemi, and K. Knielm
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