GB/T 24635.4-2020 English PDFUS$519.00 · In stock
Delivery: <= 5 days. True-PDF full-copy in English will be manually translated and delivered via email. GB/T 24635.4-2020: Geometrical product specifications (GPS)-Coordinate measuring machines (CMM): Technique for determining the uncertainty of measurement - Part 4: Evaluating task-specific measurement uncertainty using simulation Status: Valid
Basic dataStandard ID: GB/T 24635.4-2020 (GB/T24635.4-2020)Description (Translated English): Geometrical product specifications (GPS)-Coordinate measuring machines (CMM): Technique for determining the uncertainty of measurement - Part 4: Evaluating task-specific measurement uncertainty using simulation Sector / Industry: National Standard (Recommended) Classification of Chinese Standard: J04 Classification of International Standard: 17.040.10 Word Count Estimation: 28,268 Date of Issue: 2020-12-14 Date of Implementation: 2021-07-01 Quoted Standard: GB/T 16857.1; JJF 1001-2011; JJF 1059.1 Adopted Standard: ISO/TS 15530-4-2008, MOD Regulation (derived from): National Standard Announcement No. 28 of 2020 Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration Summary: This standard specifies the information description of the simulation technology used to evaluate the measurement uncertainty of a specific task, and specifies the requirements for manufacturers and users when the uncertainty evaluation software (UES) based on the simulation technology is used for the measurement of coordinate measuring machines . Appendix A of this standard specifies the checklist: the statement of influence quantity; the elements of the uncertainty assessment software (UES) are shown in Appendix B. In addition, this standard also describes the test methods of this simulation software, as well as the advantages and disadvantages of various test methods, see Appendix C. Finally, by simulating the specific measurement tasks performed on the coordinate measuring machine, combined with the measurement device, environment, measurement strategy and measurement object, the uncertainty test procedures of various specific tasks are described, see Appendix D, Appendix E, Appendix F And Appendix G GB/T 24635.4-2020: Geometrical product specifications (GPS)-Coordinate measuring machines (CMM): Technique for determining the uncertainty of measurement - Part 4: Evaluating task-specific measurement uncertainty using simulation---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order. (Product Geometric Technical Specification (GPS) Coordinate Measuring Machine (CMM) Technology for determining measurement uncertainty Part 4: Application of simulation technology to evaluate measurement uncertainty for specific tasks) ICS 17:040:10 J04 National Standards of People's Republic of China Product Geometric Technical Specification (GPS) Coordinate Measuring Machine (CMM) Techniques for determining measurement uncertainty Part 4: Apply simulation techniques to evaluate specific tasks Measurement uncertainty (ISO /T S15530-4:2008,MOD) Released on 2020-12-14 Implemented on 2021-07-01 State Administration for Market Regulation Issued by the National Standardization Management Committee Table of contentsPreface Ⅲ Introduction Ⅳ 1 Scope 1 2 Normative references 1 3 Terms and definitions 1 4 Abbreviations 1 5 Requirements for Uncertainty Evaluation Software (UES) 2 5:1 Specification describing the scope of use of UES 2 5:2 UES input specification 2 5:3 Additional UES document 3 5:4 Compliance with GUM standard 3 5:5 Application of UES results 3 Appendix A (Normative Appendix) Checklist: Statement of Influence 4 Appendix B (informative appendix) Elements of Uncertainty Evaluation Software (UES) 7 Appendix C (informative appendix) Test Uncertainty Evaluation Software (UES) Method 9 Appendix D (informative appendix) Example: physical testing of a single coordinate measuring machine 16 Appendix E (Informative Appendix) Example: Computer Aided Verification and Evaluation 18 Appendix F (informative appendix) Example: Comparison with specific reference results 20 Appendix G (informative appendix) Descriptive example: long-term statistical survey 22 Appendix H (Informative Appendix) Relationship with GPS Matrix Model 23 References 24ForewordGB/T 24635 "Geometric Technical Specification for Products (GPS) Coordinate Measuring Machine (CMM) Technology for Determining Measurement Uncertainty" is divided into The next few parts: ---Part 1: Summary and measurement characteristics; ---Part 2: Apply multiple measurement strategies; ---Part 3: Application of calibrated parts or standard parts; ---Part 4: Application of simulation technology to evaluate the measurement uncertainty of a specific task; ---Part 5: Application of expert judgment: This part is Part 4 of GB/T 24635: This section was drafted in accordance with the rules given in GB/T 1:1-2009: This part adopts the redrafting method to modify and adopt ISO /T S15530-4:2008 "Geometrical Technical Specifications for Products (GPS) Coordinate Measuring Machine (CMM) Techniques for Determining Measurement Uncertainty Part 4: Application of Simulation Technology to Evaluate the Measurement Uncertainty of a Specific Task": The technical differences between this part and ISO /T S15530-4:2008 and the reasons are as follows: ---Regarding normative reference documents, this section has made adjustments with technical differences to adapt to my country's technical conditions and adjustments: The situation is collectively reflected in Chapter 2 "Normative Reference Documents", and the specific adjustments are as follows: ● Replace ISO 10360-1 with GB/T 16857:1 equivalent to the international standard (see Chapter 3); ● Use JJF1001-2011 instead of ISO /IEC Guide 99:2007 (see Chapter 3); ● Use JJF1059:1 instead of GUM (see Chapter 3, 5:4, 5:5): This section has made the following editorial changes: ---According to the requirements of GB/T 1:1-2009, in the "Scope" chapter, the "Appendix A of this part gives a checklist: Statement; See Appendix B for the elements of the Uncertainty Evaluation Software (UES): "" This part is applicable to the application of simulation when using coordinate measuring machine True technology evaluates the measurement uncertainty of a specific task:" This part is proposed and managed by the National Standardization Technical Committee for Product Geometric Technical Specifications (SAC/TC240): Drafting organizations of this section: Shenzhen Zhongtu Instrument Co:, Ltd:, China Institute of Metrology, Shandong University of Technology, Chongqing Metrology Quality Inspection Institute, Shanghai Institute of Metrology and Testing Technology, CMC Productivity Promotion Center, Shaanxi Institute of Metrology, Carl Zeiss (Shanghai) Management Co:, Ltd: The main drafters of this section: Wang Weinong, Wei Hengzheng, Li Dongxing, Ma Junjie, Chen Long, Tao Lei, Zhang Hui, Fu Yunxia, Zhu Yue, Fei Lina:IntroductionThis part of GB/T 24635 is a technical specification for product geometric technical specifications (GPS), which is considered to be a general product geometric technical specification Documents (see GB/T 20308): It affects the size, distance, shape, direction, position and runout of the link G of the standard chain: Use coordinate measuring machines (CMMs) to check tolerances, and when conducting pass/fail tests, according to GB/T 18779:1, specific The measurement uncertainty of the task: Although it is important to master measurement uncertainty, so far, only a few processes can give specific tasks The uncertainty of measurement: For simple measuring equipment, according to the "Guidelines for Expression of Measurement Uncertainty" (JJF1059:1), the uncertainty component can be passed Evaluate this uncertainty: However, as far as the coordinate measuring machine is concerned, due to the complexity of the measurement process, the classic uncertainty evaluation method is It is impractical for most measurement tasks: Alternative methods consistent with JJF1059:1 can be used to evaluate the uncertainty of specific tasks in coordinate measurement: Consider the impact of uncertainty In response, this part of GB/T 24635 describes a method for evaluating uncertainty through numerical simulation of the measurement process: In order to allow coordinate measuring machine users to easily give the uncertainty value, coordinate measuring machine suppliers and other third-party companies have developed Uncertainty Evaluation Software (UES) was released: UES is a computer-aided mathematical model based on the measurement process: In this model, reproduced The measurement process from the measurement to the output of the measurement result takes into account the important influences in the process: During the simulation process, these influence quantities change within their possible or assumed numerical range (described by the probability distribution), and use these Possible combinations of influence quantities to repeat the simulation measurement process: The uncertainty depends on the change in the final result: This process conforms to the basic principles of the internationally valid guidelines for the expression of measurement uncertainty (JJF1059:1): UES details are often hidden Hidden in the compiled computer code makes it difficult for users to evaluate the reliability of the calculated uncertainty expression: GB/T 24635 Part of it provides UES suppliers and coordinate measuring machine users with terms and test procedures for communicating and quantifying UES capabilities: This part of GB/T 24635 first considers the impact statement: The statement clarifies what UES considers in its uncertainty assessment These influence quantities, and the range of their values: For example, some UES consider the influence of using multiple stylus in the measurement process of coordinate measuring machine, and Other UES are not considered: Similarly, some UES consider the effect of spatial temperature gradient or temperature change over time, while others do not: Declaration part The purpose of the CMM is to clearly inform the user of the coordinate measuring machine that UES will consider which influence quantities and the range of their magnitudes in its uncertainty assessment: This allows the user to have a good idea when making a decision: Buy UES products with only partial functions, not included in the uncertainty evaluation results Contains the contribution of some influence quantities during the measurement of the coordinate measuring machine, and the user of the coordinate measuring machine needs to evaluate these unaccounted influence quantities by himself, and And they are combined with the results evaluated by UES to generate an uncertainty statement that meets the JJF1059:1 standard: This part of GB/T 24635 also gives four possible test methods, and points out that from a practical point of view, there is no one method: The law is comprehensive: A description of each method is given, and its advantages and disadvantages are also reviewed: Each method also includes a descriptive example: Product Geometric Technical Specification (GPS) Coordinate Measuring Machine (CMM) Techniques for determining measurement uncertainty Part 4: Apply simulation techniques to evaluate specific tasks Measurement uncertainty1 ScopeThis part of GB/T 24635 gives a description of the simulation technology used to evaluate the measurement uncertainty of a specific task, and specifies When the Uncertainty Evaluation Software (UES) based on simulation technology is used for the measurement of coordinate measuring machine, it is required for manufacturers and users: Appendix A of this section gives a checklist: the statement of influence quantity; the elements of the uncertainty assessment software (UES) see Appendix B: In addition, this section also describes the test method of this simulation software, as well as the advantages and disadvantages of various test methods, see Appendix C: Finally, by simulating the specific measurement task performed on the coordinate measuring machine, and combining the measurement device, environment, measurement strategy and measurement pair Like, describes the uncertainty test procedures for various specific tasks, see Appendix D, Appendix E, Appendix F and Appendix G: This section describes The general procedures are described, but there is no limit to the possibility of technical realization, including the verification and evaluation guidelines of the simulation package: The purpose of this section is not to define new parameters for evaluating the measurement accuracy of coordinate measuring machines: This section applies to the application of simulation technology to evaluate the measurement uncertainty of specific tasks when using coordinate measuring machines:2 Normative referencesThe following documents are indispensable for the application of this document: For dated reference documents, only the dated version applies to this article Pieces: For undated references, the latest version (including all amendments) applies to this document: GB/T 16857:1 Technical Specification for Product Geometrical Quantities (GPS) Acceptance Testing and Re-inspection Testing of Coordinate Measuring Machines Part 1: Words Exchange (GB/T 16857:1-2002, eqvISO 10360-1:2000) JJF1001-2011 General measurement terms and definitions JJF1059:1 Evaluation and expression of measurement uncertainty3 Terms and definitionsThe terms and definitions defined in GB/T 16857:1, JJF1059:1 and JJF1001-2011 apply to this document:4 AbbreviationsThe following abbreviations apply to this document: CVE Computer-aided Verification and Evaluation (Computer-aided Verification and Evaluation) UES Uncertainty Evaluation Software (UncertaintyEvaluatingSoftware) Note: The definition of these acronyms is not given: Abbreviations and related phrases are given when used in this document: ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB/T 24635.4-2020_English be delivered?Answer: Upon your order, we will start to translate GB/T 24635.4-2020_English as soon as possible, and keep you informed of the progress. 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