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Based on metrology, Geometrical Product Specifications (GPS) standard system proposes higher specification requirements for position tolerance evaluation. Based on analyzing of the definition of the axis of the plane and the measurement method, the least square method of parallel evaluation model is used for the model coordinate system transformation, so it can unify the elements of the tested elements...
The evaluation of measurement uncertainty is an important part of the new generation geometric products specifications (GPS). At present, coordinate measurement only give examine result of plane to plane parallelism, and fail to give uncertainty problem of examine result. According to basic principle of two planes least-square verification and ISO/ TS 14253 - 2 to give transfer formula of uncertainty,...
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