JJF 1130-2005Guide to the Estimation of Uncertainty in Calibration of Geometrical Measuring Equipment (English PDF)

3.1 Black box model for uncertainty evaluation (2)

3.2 Transparent Box Model for Uncertainty Evaluation (2)

3.3 Measurement tasks (3)

3.4 Basic Measurement Tasks (Basic Measurements) (3)

3.5 Overall Measurement Tasks (3)

3.6 (measured) extended uncertainty (3)

3.7 True uncertainty (3)

3.8 Conventional Uncertainty---GUM Uncertainty (3)

3.9 Approximate uncertainty (3)

3.10 (measured or calibrated) target uncertainty (3)

3.11 Required Measurement Uncertainty (3)

3.12 Uncertainty Management (4)

3.13 (Measurement or Calibration) Uncertainty Estimate (4)

3.14 Uncertainty factors (4)

3.15 Limit value of uncertainty factor (limit of change) (4)

3.16 Uncertainty component (4)

3.17 Influence of measuring instrument (4)

3.18 Influence of workpiece (4)

6.1 Overview (7)

6.2 Uncertainty management for a given measurement process (7)

6.3 Uncertainty management for the design and development of measurement processes (procedures) (8)

7.1 Type of error (10)

7.2 Measurement environment (12)

7.3 Reference Standard for Measuring Equipment (12)

7.4 Measuring Equipment (12)

7.5 Measurement configuration (except for the mounting of the device under test) (13)

7.6 Software and Computing (13)

7.7 Surveyors (13)

7.8 Characteristics of measuring instruments (13)

7.9 Definition of geometrical measuring instrument characteristics (14)

7.10 Measurement Procedures (14)

7.11 Physical Constants and Conversion Factors (14)

8 Evaluation methods for uncertainty components, standard uncertainty and extended uncertainty (14)

8.1 Evaluation of uncertainty components (14)

8.2 Class A assessment of uncertainty components (14)

8.3 Class B assessment of uncertainty components (15)

8.4 Common examples of Class A and Class B assessments (17)

8.5 Black box model and transparent box model for uncertainty evaluation (19)

8.6 Black Box Model for Uncertainty Evaluation---Synthesis Criteria from Uncertainty Component Synthesis Uncertainty uc (20)

8.7 Transparent Box Model for Uncertainty Evaluation---Synthesis Criteria from Uncertainty Component Synthesis Uncertainty uc (20)

8.8 Evaluation of extended uncertainty U by synthetic standard uncertainty uc (21)

8.9 Measurement uncertainty parameters uc and U properties (21)

9.1 Overview (21)

9.2 Prerequisites for the uncertainty estimate (21)

9.3 Standard procedure for uncertainty estimates (22)

10.1 Overview (24)

10.2 Document preparation and evaluation of uncertainty values (25)

10.3 Design and documentation of the measurement or calibration process (25)

10.4 Design, Optimization and Documentation of Calibration Levels (26)

10.5 Design and documentation of new measuring equipment (26)

10.6 Environmental requirements (28)

10.7 Requirements for surveyors (28)

Appendix A Example of Uncertainty Estimation---Circular Calibration (29)

Geometric measurement equipment calibration Uncertainty assessment guide this specification is based on ISO 14253-2:1999 Geometrical Product Specifications (GPS) - Workpieces and measuring equipment Measurement Testing - Part 2. Guidance for Uncertainty Evaluation of GPS Measurements in Measurement Equipment Calibration and Product Inspection (Geometrical Product Specifications (GPS)---Inspection by measurement of Workpiecesandmeasuringequipment---Part 2. Guidetotheestimationofuncertainty inGPSmeasurement,incalibrationofmeasuringequipmentandinproductverification) Drafting, the basic content is the same, but only for calibration activities, so the words related to product inspection are abridged.

In order to maintain the unity of text and the convenience of international exchange, in this specification, we use GUM as 1993 7 the Guide to Measurement Uncertainty (GUM) or JJF 1059-1999 jointly issued by international organizations Abbreviation for the recommended uncertainty assessment method.

1 Scope

As a basis for implementing the JJF 1059-1999 "Measurement Uncertainty Evaluation and Representation" basic concept in calibration South, this specification applies to the characterization (calibration) activities of geometric measuring equipment. The purpose of this specification is to give incomplete all the information of the qualitative report, and the international measurement results and their uncertainty (the relationship between the customer and the supplier) the comparison provides the basis.

This specification helps to understand the maximum allowable error (MPE) of the metrology characteristics of measuring equipment.

This specification uses the Uncertainty Management Program (PUMA), which is based on JJF 1059-1999.

A practical iterative procedure for measuring uncertainty, and no changes have been made to the basic concepts of JJF 1059-1999.

This specification is generally used for uncertainty assessment and reporting of uncertainty in the following situations.

---A single measurement result;

--- comparison of two or more measurements;

--- Measurement results obtained by one (or more) measuring equipment and specified technical indicators (ie measuring instruments or A comparison of the maximum allowable error (MPE, etc.) of the metrological characteristics of the standard is measured to determine whether the requirements are met.

The iterative method of this specification is basically based on the evaluation of the upper bound of the uncertainty, that is, the various stages of uncertainty evaluation.

The segment overestimates its uncertainty, and the degree of overestimation is controlled by the number of iterations. In order to avoid making wrong judgments from the measurement results Broken, deliberate overestimation of uncertainty. The degree of overestimation is determined by the economic evaluation in specific situations.

In calibration activities, the iterative method is the tool that gets the most benefit at the lowest cost. Iterative or iterative procedure Economically self-regulating. In order to reduce the calibration cost, the iterative method is to change/reduce the measurement uncertainty.

Tool of. In the measurement uncertainty assessment and allocation, the iterative method makes the coordination between risk, effect and cost become may.

2 Citations

The terms in the following documents become the terms of this specification by reference to this specification. Quotations with dated , all subsequent amendments (not including errata content) or revisions do not apply to this specification, however, drums