MEASUREMENT UNCERTAINTY COMBINED WITH THE MODEL OF PRODUCT AND MEASUREMENT REALIZATION IN 3D METROLOGY

• Abstract:

  Even though coordinate metrology has been proven to be priceless to industries and despite the existence of methods to estimate uncertainties, e.g. sensitivity analysis, computer simulation, experimental method; uncertainty has been barely assessed and stated by industrial metrologists. Part of that perception may be attributed to a restricted way of employing the measurement uncertainty concept, which is not compatible with the growing importance of metrology. The merging of the well-known product and measurement realization process with measurement uncertainty concept is outlined in this work. The main idea is to use in a rational sense different techniques of evaluating the uncertainty of a measurement result, where the estimated accuracy required to the uncertainty estimation defines the suitable technique. Within the proposed context, the drawing-up of classical uncertainty budgets for GPS characteristics are shown and discussed for different measurement scenarios.
• Keywords:

  uncertainty evaluation and traceability, GPS characteristics, industrial coordinate metrology
• Download:

  IMEKO-WC-2012-TC14-P7.pdf
• DOI:

  _unreg_wc-2012.TC14-P7

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