Primary-level calibration of master gears requires quantifyingthe measurement uncertainty on the artifact being calibrated by amethod that does not rely on a transfer comparison. The measurementdecomposition method, developed jointly by National Institute ofStandards and Technology (NIST) and Oak Ridge Metrology Center(ORMC) personnel, is used to determine the uncertainty of eachcomponent of the measurement task. Once quantified, thesecomponents are added in quadrature according to NIST Technical Note1297, 1994 Edition. Verification of this method can be accomplishedby inter-comparisons with other methods and laboratories. Thetechniques developed at NIST and ORMC utilize a CMM with a rotarytable, a FORTRAN program for involute data generation, and aProEngineer solid model for gear visualization.
- Edition:
- 98
- Published:
- 10/01/1998
- Number of Pages:
- 20
- File Size:
- 1 file , 960 KB
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