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Traceability

Home » Topics » Inspection » Traceability
  • August 1, 2014

    First International Involute Gear Comparison

    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.
  • May 1, 2008

    Update on the National Center for Gear Metrology

    The status on traceability of gear artifacts in the United States.
  • January 1, 1996

    Rebuilding a Metrology Infrastructure

    The American Society of Mechanical Engineers (ASME) announced at Gear Expo '95 that a national service for the calibration of involute artifacts is now available at the Department of Energy's Y-12 Plant in Oak Ridge, TN.
Read More
  • May 1, 1994

    Gear Metrology Standards and ISO 9000

  • November 1, 1987
    By Yefim Kotlyar

    Selection of Hobbing Data

Read More

Blog Posts

  • June 26, 2018
    By Matthew Jaster

    Zoller Highlights Smart Factory Solutions

  • September 22, 2015
    By Charles D. Schultz

    How Reliable is Our Information?

Read More

Authors

  • Charles schultz
    Charles D. Schultz
  • Matthew jaster
    Matthew Jaster
  • Yefim kotlyar
    Yefim Kotlyar
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