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GB/T 26958.21-2020 English PDF

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GB/T 26958.21-2020: Geometrical product specifications (GPS). Filtration - Part 21: Linear profile filters: Gaussian filters
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GB/T 26958.21-2020English344 Add to Cart 3 days [Need to translate] Geometrical product specifications (GPS). Filtration - Part 21: Linear profile filters: Gaussian filters Valid GB/T 26958.21-2020

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Basic data

Standard ID GB/T 26958.21-2020 (GB/T26958.21-2020)
Description (Translated English) Geometrical product specifications (GPS). Filtration - Part 21: Linear profile filters: Gaussian filters
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard J04
Classification of International Standard 17.040.20
Word Count Estimation 18,171
Date of Issue 2020-12-14
Date of Implementation 2021-07-01
Quoted Standard GB/Z 26958.1-2011; GB/Z 26958.20-2011
Adopted Standard ISO 16610-21-2011, IDT
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 metrological characteristics of Gaussian filters for contour filtering, and specifies the method for separating long-wave and short-wave components of surface contours. This standard is applicable to surface contour roughness feature extraction operations, and other signal filtering analysis occasions can be used as a reference.

GB/T 26958.21-2020: Geometrical product specifications (GPS). Filtration - Part 21: Linear profile filters: Gaussian filters


---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) Filtering Part 21: Linear Contour Filter Gaussian Filter) ICS 17:040:20 J04 National Standards of People's Republic of China Product Geometric Technical Specification (GPS) Filtering Part 21: Linear contour filter Gaussian filter (ISO 16610-21:2011, IDT) 2020-12-14 release 2021-07-01 implementation State Administration for Market Regulation Issued by the National Standardization Management Committee

Table of contents

Foreword Ⅰ 1 Scope 1 2 Normative references 1 3 Terms and definitions 1 4 Gaussian contour filter characteristics of open contour 2 5 Gaussian contour filter characteristics of closed contour 5 Appendix A (informative appendix) Execution error of open and closed contour filtering (convolution algorithm) 8 Appendix B (informative appendix) Example 12 Appendix C (informative appendix) and the relationship between the filter matrix model 13 Appendix D (informative appendix) and GPS matrix model relationship 14 Reference 15

Foreword

GB/T 26958 "Geometric Technical Specifications for Products (GPS) Filtering" is divided into 89 parts, and the following 12 parts have been released: ---Part 1: Overview and basic concepts; ---Part 20: Basic concepts of linear contour filters; ---Part 21: Linear contour filter Gaussian filter; ---Part 22: Linear contour filter spline filter; ---Part 28: End effect of contour filter; ---Part 29: Linear contour filter spline wavelet; ---Part 30: Basic concepts of robust contour filter; ---Part 31: Robust contour filter Gaussian regression filter; ---Part 32: Robust contour filter spline filter; ---Part 40: Basic concepts of morphological contour filter; ---Part 41: Morphological contour filter disc and horizontal line segment filter; ---Part 49: Morphological contour filter scale space technology: This part is part 21 of GB/T 26958: This section was drafted in accordance with the rules given in GB/T 1:1-2009: The translation method used in this part is equivalent to the ISO 16610-21:2011 "Geometric Technical Specification for Products (GPS) Filtering Part 21: Line Characteristic contour filter Gaussian filter: The Chinese documents that have a consistent correspondence with the international documents cited in this section are as follows: ---JJF1001-2011 General measurement terms and definitions (ISO /IEC Guide99:2007, MOD); ---JJF1059:1-2012 Measurement Uncertainty Evaluation and Expression (ISO /IEC Guide98-3:2008, MOD): This section has made the following editorial changes: ---Rewrite Appendix D in accordance with the requirements of GB/T 20308-2020: This part is proposed and managed by the National Standardization Technical Committee for Product Geometric Technical Specifications (SAC/TC240): Drafting organizations of this section: Huazhong University of Science and Technology, Shaanxi Weir Mechanical and Electrical Technology Co:, Ltd:, Beijing Times Peak Technology Co:, Ltd:, Shandong Road First is Intelligent Technology Co:, Ltd:, Shanghai Institute of Metrology and Testing Technology, CMC Productivity Promotion Center, Jiangsu Ruijing Optoelectronics Research Institute Co:, Ltd: the company: The main drafters of this section: Lu Wenlong, Zhang Tao, Lang Yanmei, Ming Cuixin, Hao Jianguo, Qu Chaoqing, Zhu Yue, Chen Gang: Product Geometric Technical Specification (GPS) Filtering Part 21: Linear contour filter Gaussian filter

1 Scope

This part of GB/T 26958 specifies the metrological characteristics of Gaussian filters for contour filtering, and gives the long wave and Shortwave component method: This section applies to the extraction of surface profile roughness features, and other signal filtering and analysis occasions can be used as a reference:

2 Normative references

The 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 /Z 26958:1-2011 Product Geometric Technical Specification (GPS) Filtering Part 1: Overview and Basic Concepts (ISO / TS16610-1:2006, IDT) GB /Z 26958:20-2011 Geometric Technical Specifications for Products (GPS) Filtering Part 20: Basic Outline of Linear Contour Filter Read (ISO /T S16610-20:2006, IDT) ISO /IEC Guide 98-3:2008 Measurement Uncertainty Evaluation and Expression [Uncertaintyofmeasurement-Part 3:Guide totheexpressionofuncertaintyinmeasurement(GUM:1995)] ISO /IEC Guide 99:2007 General Metrology Terms and Definitions [Internationalvocabularyofmetrology-Basicand generalconceptsandassociatedterms(VIM)]

3 Terms and definitions

The terms and definitions defined in GB /Z 26958:1, GB /Z 26958:20, ISO /IEC Guide 98-3 and ISO /IEC Guide 99 are applicable to This document: For ease of use, some terms and definitions in GB /Z 26958:1 and GB /Z 26958:20 are listed repeatedly below: 3:1 Linear profile filter linearprofilefilter A contour filter that divides the contour into long wave and short wave components: [GB /Z 26958:20-2011, definition 3:1] 3:2 Openprofile openprofile A surface profile with two end points and a finite length: [GB /Z 26958:1-2011, definition 3:7] 3:3 Closedprofile Surface profile with no endpoints and limited length: [GB /Z 26958:1-2011, definition 3:8]

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