1、BSI Standards PublicationGeometrical product specifications (GPS) Coordinate measuring machines (CMM): Technique for determining the uncertainty of measurementPart 1: Overview and metrological characteristicsPD CEN ISO/TS 15530-1:2013National forewordThis Published Document is the UK implementation
2、of CEN ISO/TS 15530-1:2013.The UK participation in its preparation was entrusted to TechnicalCommittee TDW/4, Technical Product Realization.A list of organizations represented on this committee can be obtained onrequest to its secretary.This publication does not purport to include all the necessary
3、provisions ofa contract. Users are responsible for its correct application. The British Standards Institution 2013.Published by BSI Standards Limited 2013ISBN 978 0 580 66906 4ICS 17.040.30Compliance with a British Standard cannot confer immunity fromlegal obligations.This Published Document was pub
4、lished under the authority of theStandards Policy and Strategy Committee on 30 September 2013.Amendments/corrigenda issued since publicationDate Text affectedPUBLISHED DOCUMENTPD CEN ISO/TS 15530-1:2013TECHNICAL SPECIFICATION SPCIFICATION TECHNIQUE TECHNISCHE SPEZIFIKATION CEN ISO/TS 15530-1 Septemb
5、er 2013 ICS 17.040.30 English Version Geometrical product specifications (GPS) - Coordinate measuring machines (CMM): Technique for determining the uncertainty of measurement - Part 1: Overview and metrological characteristics (ISO/TS 15530-1:2013) Spcification gomtrique des produits (GPS) - Machine
6、s mesurer tridimentionnelles (MMT): Technique pour la dtermination de lincertitude de mesure - Partie 1: Vue densemble et caractristiques mtrologiques (ISO/TS 15530-1:2013) Geometrische Produktspezifikation und -prfung (GPS) - Verfahren zur Ermittlung der Messunsicherheit von Koordinatenmessgerten (
7、KMG) - Teil 1: bersicht und metrologische Merkmale (ISO/TS 15530-1:2013) This Technical Specification (CEN/TS) was approved by CEN on 25 July 2011 for provisional application. The period of validity of this CEN/TS is limited initially to three years. After two years the members of CEN will be reques
8、ted to submit their comments, particularly on the question whether the CEN/TS can be converted into a European Standard. CEN members are required to announce the existence of this CEN/TS in the same way as for an EN and to make the CEN/TS available promptly at national level in an appropriate form.
9、It is permissible to keep conflicting national standards in force (in parallel to the CEN/TS) until the final decision about the possible conversion of the CEN/TS into an EN is reached. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denm
10、ark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE
11、 FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2013 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. CEN ISO/TS 15530-1:2013: EPD CEN
12、ISO/TS 15530-1:2013CEN ISO/TS 15530-1:2013 (E) 2 Contents Page Foreword 3 PD CEN ISO/TS 15530-1:2013CEN ISO/TS 15530-1:2013 (E) 3 Foreword This document (CEN ISO/TS 15530-1:2013) has been prepared by Technical Committee ISO/TC 213 “Dimensional and geometrical product specifications and verification“
13、 in collaboration with Technical Committee CEN/TC 290 “Dimensional and geometrical product specification and verification” the secretariat of which is held by AFNOR. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and/or CENEL
14、EC shall not be held responsible for identifying any or all such patent rights. According to the CEN-CENELEC Internal Regulations, the national standards organizations of the following countries are bound to announce this Technical Specification: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Re
15、public, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. En
16、dorsement notice The text of ISO/TS 15530-1:2013 has been approved by CEN as CEN ISO/TS 15530-1:2013 without any modification. PD CEN ISO/TS 15530-1:2013ISO/TS 15530-1:2013(E) ISO 2013 All rights reserved iiiContents PageIntroduction v1 Scope . 12 Normative references 13 Terms and definitions . 14 M
17、etrological characteristics .24.1 General . 24.2 Commerce . 24.3 Internal use in an organization . 24.4 Identification, definition, and choice of metrological characteristics . 24.5 Calibration of metrological characteristics 35 Task-specific uncertainty. 35.1 General . 35.2 Instrumentation factors
18、45.3 Measurement plan factors 45.4 Extrinsic factors . 46 Techniques to determine task-specific measurement uncertainty components 46.1 General issues 46.2 Sensitivity analysis 46.3 Use of calibrated workpieces or standards (ISO 15530-3) 56.4 Use of computer simulation (ISO/TS 15530-4) . 5Annex A (i
19、nformative) Relationship between CMM metrological characteristics,the ISO 10360 series of standards and the ISO 15530 series of standards . 6Annex B (informative) Sources of error and uncertainty of measurement when using a CMM 7Annex C (informative) Relation to the GPS matrix model 12Bibliography .
20、14PD CEN ISO/TS 15530-1:2013ISO/TS 15530-1:2013(E)IntroductionThis part of ISO 15530 is a general GPS document which influences chain link 6 of the chain of standards on size, distance, radius, angle, form, orientation, location, run-out and datums in the general GPS matrix.The ISO/GPS masterplan gi
21、ven in ISO/TR 14638 gives an overview of the ISO/GPS system of which this document is a part. The fundamental rules of ISO/GPS given in ISO 8015 apply to this document and the default decision rules given in ISO 14253-1 apply to specifications made in accordance with this document, unless otherwise
22、indicated.For more detailed information on the relation of this part of ISO 15530 to other standards and the GPS matrix model, see Annex C.It is the purpose of the ISO 15530 series to provide terminology, techniques and guidelines for estimating task-specific measurement uncertainty when using coord
23、inate measuring machines (CMMs). These techniques allow for the evaluation of sources of uncertainty that affect a stated measurement, including the influence of the coordinate measuring system, the sampling strategy, environmental effects, operator variability and any other factors affecting the ac
24、tual measurement result.CMMs are considered to be complex GPS measuring equipment, and the estimation of the uncertainty of CMM measurements often involves more advanced techniques than those described in ISO 14253-2. The techniques presented in the ISO 15530 series are compliant with both ISO 14253
25、-2 and ISO/IEC Guide 98-3 (GUM). The techniques are developed specifically for CMMs but could be applied to other GPS measuring equipment.CMMs are specified by acceptance tests in the ISO 10360 series, which typically involve their ability to measure calibrated lengths (e.g. volumetric tests using c
26、alibrated gauge blocks or step gauges) and form (e.g. probing tests using a calibrated sphere). It is recognized that although these test results may be used to determine an uncertainty for the specific types of length and form measurements involved in these procedures, without further analysis or t
27、esting, these results are insufficient to determine the task-specific measurement uncertainty of most workpiece measurements.The goal of determining the measurement uncertainty can be achieved through many different techniques; however, all methods must be consistent with ISO/IEC Guide 98-3, which y
28、ields a combined standard uncertainty. The expanded uncertainty is connected to the combined standard uncertainty via the coverage factor, which is selected to produce the desired level of confidence. The default value for the coverage factor is two, i.e. k = 2, which yields a level of confidence of
29、 approximately 95 % if the uncertainty is associated with a Gaussian distribution. It is the purpose of this document to provide guidance on recognized techniques for the estimation of uncertainty of CMM measurements. ISO 2013 All rights reserved vPD CEN ISO/TS 15530-1:2013Geometrical product specif
30、ications (GPS) Coordinate measuring machines (CMM): Technique for determining the uncertainty of measurement Part 1: Overview and metrological characteristics1 ScopeThis part of ISO 15530 provides an overview of the ISO 15530 series. It discusses the metrological characteristics of coordinate measur
31、ing machines (CMMs), the sources of task-specific uncertainty, and the relationship between the ISO 10360 and ISO 15530 series.2 Normative referencesThe following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated referenc
32、es, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.ISO 10360-1:2000, Geometrical Product Specifications (GPS) Acceptance and reverification tests for coordinate measuring machines (CMM) Part 1: VocabularyISO 14
33、253-1:1), Geometrical product specifications (GPS) Inspection by measurement of workpieces and measuring equipment Part 1: Decision rules for proving conformity or nonconformity with specificationsISO 14253-2:2011, Geometrical product specifications (GPS) Inspection by measurement of workpieces and
34、measuring equipment Part 2: Guidance for the estimation of uncertainty in GPS measurement, in calibration of measuring equipment and in product verificationISO 14978:2006, Geometrical product specifications (GPS) General concepts and requirements for GPS measuring equipmentISO/IEC Guide 98-3, Uncert
35、ainty of measurement Part 3: Guide to the expression of uncertainty in measurement (GUM:1995)ISO/IEC Guide 99, International vocabulary of metrology Basic and general concepts and associated terms (VIM)3 Terms and definitionsFor the purpose of this document, the terms and definitions given in ISO 10
36、360-1, ISO 14253-1, ISO 14253-2, ISO 14978, ISO/IEC Guide 98-3, ISO/IEC Guide 99 and the following apply.3.1task-specific measurement uncertaintyexpanded uncertainty using a coverage factor of two (k = 2), evaluated according to ISO/IEC Guide 98-3, of a specific measurement resultNote 1 to entry: Ta
37、sk-specific measurement uncertainty takes into account all uncertainty sources associated with the details of the measurement process, including the CMM, probing system, sampling strategy, workpiece location and orientation, fixturing, contamination, thermal environment.1) To be published. (Revision
38、 of ISO 14253-1:1998)TECHNICAL SPECIFICATION ISO/TS 15530-1:2013(E) ISO 2013 All rights reserved 1PD CEN ISO/TS 15530-1:2013ISO/TS 15530-1:2013(E)Note 2 to entry: Different parameters of a feature, in general, have different uncertainties, e.g. the X and Y ordinates of the centre of a circle could h
39、ave different uncertainties.Note 3 to entry: Changing any influence quantity, e.g. the workpiece location in the CMM work zone, may change the task-specific measurement uncertainty.3.2sampling strategynumber and spatial distribution of probing points used to measure a geometric feature4 Metrological
40、 characteristics4.1 GeneralMetrological characteristics of CMMs are of interest for the control of errors and uncertainty contributors originating from the CMM and for the evaluation of uncertainty of measurement when using the CMM. The influence of the individual metrological characteristics on the
41、 uncertainty of measurement is dependent on the measurement process. The knowledge of the existence of the actual metrological characteristics and the magnitude of their values may be the basis for the design of the measurement process and the choice of the CMM.4.2 CommerceAll metrological character
42、istics and their MPE (maximum permissible error) or MPL (maximum permissible limit) values apply to the defined operating conditions of the specific CMM, e.g. probe system qualification, speed of travel, etc. Operating conditions for CMMs are generally found in the manufacturers operating manuals an
43、d specification data sheets and not normally in ISO standards. All metrological characteristics and their MPE or MPL values apply to all possible orientations in space, unless specific restrictions to the orientation are stated in the specific ISO standard or by the manufacturer.MPE or MPL values or
44、 functions for metrological characteristics for acceptance tests shall be supplied by the manufacturer/supplier. The manufacturer may add additional information about metrological characteristics and their MPE or MPL values.4.3 Internal use in an organizationThe customer shall identify and understan
45、d the major metrological characteristics by means of uncertainty budgeting (for examples, see ISO 14253-2). Expert judgment and prior knowledge can be used in the uncertainty estimation procedure. Calibration procedures can also be chosen based on uncertainty budgets using expert judgment and prior
46、knowledge.MPE or MPL values or functions for metrological characteristics for internal calibrations and for reverification tests shall be supplied by the user.4.4 Identification, definition, and choice of metrological characteristics4.4.1 Choice of metrological characteristicsMetrological characteri
47、stics of the CMM may be chosen and defined in several ways. Metrological characteristics of the requirements (MPE and MPL) for these characteristics should preferably be chosen and defined, including the necessary conditions, with respect to: common intended use of the CMM; independence of other met
48、rological characteristics; the use in control of uncertainty contributors that relate to the CMM;2 ISO 2013 All rights reservedPD CEN ISO/TS 15530-1:2013ISO/TS 15530-1:2013(E) relevance to the physical principles inherent in the CMM; the use in maintenance activities and error identification; relati
49、on to specific parts or functions, or both, in the CMM; measuring principle; relevance of magnitude compared to other metrological characteristics.It may be beneficial for a user of a CMM to define metrological characteristics other than those given in the standards to better fit the needs and intended use of the CMM.4.4.2 Metrological characteristics in ISO 10360The metrological characteristics defined in various parts of ISO 10360, as specified by the MPE or MPL values, could be considered in the choice of metrolo
