Conclusion a procedure for monitoring of cmms with

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Unformatted text preview: to GUM the measurement uncertainty is calculated with the VCMM3 software, which bases on Monte-Carlo simulations. The shaft collet was calibrated at the reference CMM Zeiss UPMC 1200 CARAT S-ACC in several positions to get traceable results (figure 2). The measurement results are documented in the calibration certificate together with the feature specific extended measurement uncertainties. Figure 2; DKD calibration of a shaft collet at the reference CMM 4.2. Segmenting the CMM measuring range Even to allow for a statement about the capability of the measurement process of a large CMM like a horizontal-arm CMM, its measuring volume is divided into twelve monitoring fields in (figure 3). The shaft collet was measured at six positions in the x-y-plane and at two z-levels. 1 2 Physikalisch-Technische Bundesanstalt (PTB), the German national metrology institute Deutscher Kalibrierdienst (DKD), association of calibration laboratories 3 Virtual Coordinate Measuring Machine (VCMM) 132 z y y x x A. Weckenmann, S. Beetz and J. Lorz monitor fields monitoring fields measurement plate ma...
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