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First International Involute Gear Comparison - August 2014

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Archive > 2014 > August 2014 > First International Involute Gear Comparison

The article "First International Involute Gear Comparison" appeared in the August 2014 issue of Gear Technology.

Summary
Measurement institutions of seven different countries China, Germany, Japan, Thailand, Ukraine, United Kingdom and the U.S. participated in the implementation of the first international comparison of involute gear measurement standards. The German metrology institute Physikalisch-Technische Bundesanstalt (PTB) was chosen as the pilot laboratory as well as the organizer. Three typical involute gear measurement standards provided by the PTB were deployed for this comparison: a profile, a helix and a pitch measurement standard. In the final analysis, of the results obtained from all participants, the weighted mean was evaluated as reference value for all 28 measured parameters. However, besides the measurement standards, the measured parameters, and, most importantly, some of the comparison results from all participants are anonymously presented. Furthermore, mishandling of the measurement standards as occurred during the comparison will be illustrated.

Keywords
traceability, standards, involute, artifacts, measurement, metrology, PTB, profile, helix, pitch

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