1、DD ISO/TS15530-4:2008ICS 17.040.30NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWDRAFT FOR DEVELOPMENTGeometrical ProductSpecifications(GPS) Coordinatemeasuring machines(CMM): Techniquefor determiningthe uncertainty ofmeasurementPart 4: Evaluating task-specificmeasurement unce
2、rtainty usingsimulationThis Draft for Developmentwas published underthe authority of theStandards Policy andStrategy Committee on 30November 2008 BSI 2008ISBN 978 0 580 57483 2Amendments/corrigenda issued since publicationDate CommentsDD ISO/TS 15530-4:2008National forewordThis Draft for Development
3、 is the UK implementation of ISO/TS15530-4:2008.This publication is not to be regarded as a British Standard.It is being issued in the Draft for Development series of publications andis of a provisional nature. It should be applied on this provisional basis,so that information and experience of its
4、practical application can beobtained.Comments arising from the use of this Draft for Development arerequested so that UK experience can be reported to the internationalorganization responsible for its conversion to an international standard.A review of this publication will be initiated not later th
5、an 3 years afterits publication by the international organization so that a decision can betaken on its status. Notification of the start of the review period will bemade in an announcement in the appropriate issue of Update Standards.According to the replies received by the end of the review period
6、,the responsible BSI Committee will decide whether to support theconversion into an international Standard, to extend the life of theTechnical Specification or to withdraw it. Comments should be sent tothe Secretary of the responsible BSI Technical Committee at BritishStandards House, 389 Chiswick H
7、igh Road, London W4 4AL.The UK participation in its preparation was entrusted to TechnicalCommittee TDW/4, Technical product realization (TPR).A list of organizations represented on this committee can be obtained onrequest to its secretary.This publication does not purport to include all the necessa
8、ry provisionsof a contract. Users are responsible for its correct application.Compliance with a British Standard cannot confer immunityfrom legal obligations.DD ISO/TS 15530-4:2008Reference numberISO/TS 15530-4:2008(E)ISO 2008TECHNICAL SPECIFICATION ISO/TS15530-4First edition2008-06-01Geometrical Pr
9、oduct Specifications (GPS) Coordinate measuring machines (CMM): Technique for determining the uncertainty of measurement Part 4: Evaluating task-specific measurement uncertainty using simulation Spcification gomtrique des produits (GPS) Machines mesurer tridimensionnelles (MMT): Technique pour la dt
10、ermination de lincertitude de mesure Partie 4: valuation de lincertitude de mesure spcifique dune tche laide de simulations DD ISO/TS 15530-4:2008ISO/TS 15530-4:2008(E) PDF disclaimer This PDF file may contain embedded typefaces. In accordance with Adobes licensing policy, this file may be printed o
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13、able for use by ISO member bodies. In the unlikely event that a problem relating to it is found, please inform the Central Secretariat at the address given below. COPYRIGHT PROTECTED DOCUMENT ISO 2008 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or u
14、tilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from either ISO at the address below or ISOs member body in the country of the requester. ISO copyright office Case postale 56 CH-1211 Geneva 20 Tel. + 41 22 749 01 11 F
15、ax + 41 22 749 09 47 E-mail copyrightiso.org Web www.iso.org Published in Switzerland ii ISO 2008 All rights reservedDD ISO/TS 15530-4:2008ISO/TS 15530-4:2008(E) ISO 2008 All rights reserved iiiContents Page Foreword iv Introduction v 1 Scope 1 2 Normative references 1 3 Terms and definitions .1 4 A
16、bbreviations.2 5 Requirements concerning uncertainty evaluating software (UES) 2 5.1 Specification of the claimed scope of the UES 2 5.2 Specification of input to the UES.3 5.3 Additional UES documentation3 5.4 GUM compliance3 5.5 Use of results from UES4 Annex A (normative) Checklist Declaration of
17、 influence quantities .5 Annex B (informative) Elements of the uncertainty evaluating software (UES) .7 Annex C (informative) Methods of testing uncertainty evaluating software (UES)9 Annex D (informative) Descriptive example Physical testing on an individual CMM18 Annex E (informative) Descriptive
18、example Computer-aided verification and evaluation .20 Annex F (informative) Descriptive example Comparison with specific reference results22 Annex G (informative) Descriptive example Statistical long term investigation .24 Annex H (informative) Relation to the GPS matrix model.25 Bibliography 26 DD
19、 ISO/TS 15530-4:2008ISO/TS 15530-4:2008(E) iv ISO 2008 All rights reservedForeword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO te
20、chnical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates close
21、ly with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2. The main task of technical committees is to prepare International Standards. Draft
22、 International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. In other circumstances, particularly when there is an urgent market requiremen
23、t for such documents, a technical committee may decide to publish other types of normative document: an ISO Publicly Available Specification (ISO/PAS) represents an agreement between technical experts in an ISO working group and is accepted for publication if it is approved by more than 50 % of the
24、members of the parent committee casting a vote; an ISO Technical Specification (ISO/TS) represents an agreement between the members of a technical committee and is accepted for publication if it is approved by 2/3 of the members of the committee casting a vote. An ISO/PAS or ISO/TS is reviewed after
25、 three years in order to decide whether it will be confirmed for a further three years, revised to become an International Standard, or withdrawn. If the ISO/PAS or ISO/TS is confirmed, it is reviewed again after a further three years, at which time it must either be transformed into an Internationa
26、l Standard or be withdrawn. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. ISO/TS 15530-4 was prepared by Technical Committee ISO/TC 213, Dimensiona
27、l and geometrical product specifications and verification. ISO/TS 15530 consists of the following parts, under the general title Geometrical Product Specifications (GPS) Coordinate measuring machines (CMM): Technique for determining the uncertainty of measurement: Part 3: Use of calibrated workpiece
28、s or standards Technical Specification Part 4: Evaluating task-specific measurement uncertainty using simulation Technical Specification The following part is under preparation: Part 2: Use of multiple measurements strategies in calibration artefacts Technical Specification The following part is pla
29、nned: Part 1: Overview and general issues DD ISO/TS 15530-4:2008ISO/TS 15530-4:2008(E) ISO 2008 All rights reserved vIntroduction This part of ISO 15530 is a Geometrical Product Specification (GPS) Technical Specification and is to be regarded as a general GPS document (see ISO/TR 14638). It influen
30、ces the chain link 6 of the chain of standards on size, distance, radius, angle, form, orientation, location, run-out and datums. For more detailed information of the relation of this part of ISO 15530 to the GPS matrix model, see Annex H. For coordinate measuring machines (CMMs) used to inspect tol
31、erances according to ISO 14253-1, the task-specific uncertainties of measurement are taken into account when tests for conformity/non-conformity are carried out. While knowledge of the uncertainty of measurement is important, up to the present, there have been only a few procedures that allow the ta
32、sk-specific uncertainty of measurement to be stated. For simple measuring devices, this uncertainty can be evaluated by an uncertainty budget according to the recommendations of the Guide to the expression of uncertainty in measurement (GUM). However, in the case of a CMM, the formulation of a class
33、ical uncertainty budget is impractical for the majority of the measurement tasks due to the complexity of the measuring process. Alternate methods that are consistent with the GUM can be used to determine the task-specific uncertainty of coordinate measurements. One such method that evaluates the un
34、certainty by numerical simulation of the measuring process allowing for uncertainty influences is described in this part of ISO 15530. To allow CMM users to easily create uncertainty statements, CMM suppliers and other third party companies have developed uncertainty evaluating software (UES). UES i
35、s based on a computer-aided mathematical model of the measuring process. In this model, the measuring process is represented from the measurand to the measurement result, taking important influence quantities into account. In the simulation, these influences are varied within their possible or assum
36、ed range of values (described by probability distributions), and the measuring process is repeatedly simulated, using possible combinations of the influence quantities. The uncertainty is determined from the variation of the final result. This procedure is compatible with the fundamental principles
37、of the internationally valid Guide to the expression of uncertainty in measurement (GUM). The details of the UES are often hidden in compiled computer code making it difficult for the user to assess the reliability of the calculated uncertainty statements. This part of ISO 15530 sets forth terminolo
38、gy and testing procedures for both the UES supplier and the CMM user to communicate and quantify the capabilities of UES. This part of ISO 15530 begins by considering the declaration of influence quantities. The declarations identify which influence quantities, along with their ranges of values, the
39、 UES can account for in its uncertainty evaluation. For example, some UES can include the effects of using multiple styli during a CMM measurement, while others cannot. Similarly, some UES can include the effects of spatial temperature gradients or variations of temperature over time, while others c
40、annot. The purpose of the declaration section is to clearly identify to the CMM user what influence quantities, and their ranges of values, the UES will consider in its uncertainty evaluation. This will allow the user to be able to make informed decisions. Purchasing a UES product with limited capab
41、ilities that do not include some influence quantities present during the CMM measurements requires the CMM user to independently evaluate these unaccounted-for influence quantities and combine them appropriately with those that are evaluated by the UES in order to produce a GUM compliant uncertainty
42、 statement. This part of ISO 15530 then goes on to identify four possible methods of testing, recognizing that no single method is comprehensive in a practical sense. For each method, a description is given along with its considerations, advantages and disadvantages. A descriptive example is also in
43、cluded for each method. DD ISO/TS 15530-4:2008DD ISO/TS 15530-4:2008TECHNICAL SPECIFICATION ISO/TS 15530-4:2008(E) ISO 2008 All rights reserved 1Geometrical Product Specifications (GPS) Coordinate measuring machines (CMM): Technique for determining the uncertainty of measurement Part 4: Evaluating t
44、ask-specific measurement uncertainty using simulation 1 Scope This part of ISO 15530 specifies requirements (for the manufacturer and the user) for the application of (simulation-based) uncertainty evaluating software (UES) to measurements made with CMMs, and gives informative descriptions of simula
45、tion techniques used for evaluating task-specific measurement uncertainty. Furthermore, it describes testing methods for such simulation software, along with advantages and disadvantages of various testing methods. Finally, it describes various testing procedures for the evaluation of task specific
46、uncertainty determination by simulation for specific measurement tasks carried out on CMMs, taking into account the measuring device, the environment, the measurement strategy and the object. This document describes the general procedures without restricting the possibilities of the technical realiz
47、ation. Guidelines for verification and evaluation of the simulation package are included. The document is not aimed at defining new parameters for the general evaluation of the accuracy of CMM measurements. 2 Normative references The following referenced documents are indispensable for the applicati
48、on of this document. For dated references, 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
49、 machines (CMM) Part 1: Vocabulary ISO/IEC Guide 99:2007, International vocabulary of metrology Basic and general concepts and associated terms (VIM) Guide to the expression of uncertainty in measurement (GUM). BIPM, IEC, IFCC, ISO, IUPAC, IUPAP, OIML, 1st edition, 1993, corrected and reprinted in 1995 3 Terms and definitions For the purpose of this document, the terms and definitions given in ISO 10360-1, VIM and GUM apply. DD ISO/TS 15530-4:2008ISO/TS 15530-4:2008(E) 2 ISO 2008 All rights reser
