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BS EN ISO 15530-3:2011

BS EN ISO 15530-3:2011

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Geometrical product specifications (GPS). Coordinate measuring machines (CMM). Technique for determining the uncertainty of measurement – Use of calibrated workpieces or measurement standards

Published By Publication Date Number of Pages
BSI 2011 30
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This part of ISO 15530 specifies the evaluation of measurement uncertainty for results of measurements obtained by a CMM (coordinate measuring machine) and by using calibrated workpieces or measurement standards. It provides an experimental technique for simplifying the uncertainty evaluation of CMM measurements, whose approach (substitution measurements) leads to measurements being carried out in the same way as actual measurements, but with calibrated workpieces of similar dimension and geometry instead of the unknown workpieces to be measured.

Non-substitution measurements on CMMs are also covered, as are the requirements of the uncertainty evaluation procedure, the measurement equipment needed, and the reverification and interim check of the measurement uncertainty.

NOTE The evaluation of measurement uncertainty is always related to a specific measuring task.

PDF Catalog

PDF Pages PDF Title
9 1 Scope
2 Normative references
3 Terms and definitions
10 4 Symbols
11 5 Requirements
5.1 Operating conditions
5.2 Similarity conditions
12 6 Principle of the uncertainty evaluation using calibrated workpieces
7 Procedure
7.1 Measuring equipment
7.2 Execution
7.2.1 General
13 7.2.2 Actual measurement
7.2.3 Uncertainty evaluation
7.3 Calculation of the uncertainty
7.3.1 General
15 7.3.2 Standard uncertainty, ucal, of the calibrated workpiece
7.3.3 Uncertainty due to the measurement procedure
7.3.3.1 Standard uncertainty, up, of the measurement procedure
7.3.3.2 Systematic error, b
7.3.3.3 Standard uncertainty, ub, of the systematic error
16 7.3.4 Standard uncertainty, uw, from the manufacturing process
17 7.4 Applying the substitution method: special considerations
8 Reverification of the measurement uncertainty
18 9 Interim check of the measurement uncertainty

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BS EN ISO 15530-3:2011
$142.49