GB/T 33523.72-2022Geometrical product specifications (GPS) - Surface texture: Areal - Part 72: XML file format x3p (English PDF)

Foreword

This document was issued on 30 December 2022 by the State Administration for Market Regulation; Standardization Administration of the PRC and takes effect on 1 April 2023.

It is a GB/T standard: recommended rather than compulsory, but it is the text a Chinese reviewer applies when assessing a submission.

It is classified under ICS 17.040.20, Chinese classification J04.

This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for Standardization Work Part 1.Structure and Drafting Rules for Standardization Documents"

drafting.

This document is part 72 of GB/T 33523 "Geometric Specification for Products (GPS) Surface Structure Area Law". GB/T 33523

The following parts have been published.

--- Part 1.Representation of surface structure;

--- Part 2.Terms, definitions and surface structure parameters;

--- Part 3.Specification operation set;

--- Part 6.Classification of surface structure measurement methods;

--- Part 70.Physical measurement standards;

--- Part 71.Software measurement standards;

--- Part 72.XML file format x3p;

--- Part 601.Nominal characteristics of contact (stylus) instruments;

--- Part 602.Nominal characteristics of non-contact (confocal chromatic aberration probe) instruments;

--- Part 603.Nominal characteristics of non-contact (phase-shift interference microscopy) instruments;

--- Part 604.Nominal characteristics of non-contact (coherent scanning interference) instruments;

--- Part 605.Nominal characteristics of non-contact (point autofocus probe) instruments;

--- Part 606.Nominal characteristics of non-contact (zoom) instruments;

--- Part 701.Calibration and measurement standards for contact (stylus) instruments.

This document is equivalent to Part 72 of ISO 25178-72.2017 "Geometric Product Specification (GPS) Surface Structure Area Method.

XML file format x3p".

The following minimal editorial changes have been made to this document.

---Incorporated the amendments of ISO 25178-72.2017/AMD.1.2020, the outer margins of the terms involved are used

Vertical double lines (||) are marked.

Please note that some contents of this document may refer to patents. The issuing agency of this document assumes no responsibility for identifying patents.

This document is proposed and managed by the National Product Geometric Technical Specification Standardization Technical Committee (SAC/TC240).

This document is drafted by. Tianjin University, China Institute of Metrology, Tsinghua University, Huazhong University of Science and Technology, Xiamen David Technology Co., Ltd.

Division, China Machine Productivity Promotion Center Co., Ltd., China Machine Research Standard Technology Research Institute (Beijing) Co., Ltd., Guangdong Jinya Technology Co., Ltd., Shaanxi

Seatney Electronics Co., Ltd., Guangdong Yingde Digital Technology Co., Ltd., Xi'an Ningkant Data Service Co., Ltd.

The main drafters of this document. Guo Tong, Shi Yushu, Wei Haoyun, Liu Xiaojun, Ming Cuixin, Xie Ping, Zhu Yue, Zhang Dejun, Quan Yongde, Zhang Zhijin,

Pi Kunlin.

Introduction

With the implementation of the national product quality improvement plan, the unified norms or principles used in the process of product design, manufacturing, measurement and inspection

needs are becoming more and more urgent. The surface structure representation method and related standards in the original product geometric technical specifications can no longer meet the requirements of the product manufacturing process.

Surface quality control requirements in the process.

GB/T 33523 "Product Geometric Specifications (GPS) Surface Structure Area Method" is based on the new generation of GPS product geometric specifications

Through digital measurement technology, software analysis technology and measurement evaluation, a new set of three-dimensional surface structure measurement and analysis

recommended national standards. GB/T 33523, on the basis of proposing the surface structure representation, surface structure parameters and standard operation set, analyzes

The method of surface structure measurement is given, the measurement technique used and the nominal characteristics of the instrument are given. In particular, GB/T 33523 covers contact

At the same time, it focuses on introducing a variety of non-contact measuring instruments that are of great value in high-precision measurement applications but lack standard support.

Measuring instrument. GB/T 33523 also regulates physical measurement and software measurement standards, and provides software file standards and surface structure measurement standards.

quantitative characteristics. GB/T 33523 realizes the leap from two-dimensional profile measurement to three-dimensional surface structure measurement, and is the standard system for GPS product geometry

Provides metrology test support.

GB/T 33523 is proposed to consist of 14 parts.

--- Part 1.Representation of surface structure. Specifies the use of diagrams in product technical documents (such as drawings, specifications, contracts and reports)

Shaped symbols represent the rules of the surface structure of the region.

--- Part 2.Terms, definitions and surface structure parameters. Specifies the terms, definitions and parameters for the evaluation of surface structure by the area method.

--- Part 3.Specification operation set. It specifies the complete standard operation applicable to the evaluation of surface structure (scale-limited surface) by the area method.

set.

--- Part 6.Classification of surface structure measurement methods. Specifies the classification system mainly used for surface structure measurement methods, defines

Three types of methods describe the relationship between the three types of methods and give a brief description of the specific methods.

--- Part 70.physical measurement standards. Specifies physical measurements for periodic verification and adjustment of area-based surface structure measuring instruments

standard features.

--- Part 71.Software measurement standards. Specifies the S1 and S2 software measurement standards for software calibration of measuring instruments (standard

Definition of terms).

--- Part 72.XML file format x3p. Specifies an XML file format for storing and exchanging topography and contour data

Formula x3p.

--- Part 601.Nominal characteristics of contact (stylus) instruments. Specifies the standard for surface structure area method contact (stylus) instruments

called characteristics.

--- Part 602.Nominal characteristics of non-contact (confocal chromatic aberration probe) instruments. It stipulates the use of white light based on the axial dispersion characteristic

Design and metrological characterization of a non-contact instrument for the measurement of surface structure with a revolutionary confocal chromatic aberration probe.

--- Part 603.Nominal characteristics of non-contact (phase-shift interference microscopy) instruments. Phase shift interferometry (PSI) profile and area specified

Metrological properties of surface structure measurement microscopes.

--- Part 604.Nominal characteristics of non-contact (coherent scanning interference) type instruments. Specifies the phase for 3D mapping of surface heights

Metrology characterization of dry scanning interferometry (CSI) measurement systems.

--- Part 605.Nominal characteristics of non-contact (point AF probe) instruments. specifies the use of point autofocus probe measurements

Metrological properties of surface structures for non-contact instruments.

--- Part 606.Nominal characteristics of non-contact (zoom) instruments. Specifies the use of variable focus (FV) sensors to measure surface structure

Design and metrological characteristics of non-contact instruments.

--- Part 701.Calibration and measurement standards for contact (stylus) instruments. Specifies the area method surface structure contact (stylus) type instrument

The characteristics of physical measuring tools used as measurement standards, the evaluation methods of residual errors, and the detection methods of calibration, acceptance and periodic verification.

Product Geometry Specification (GPS)

Surface Structure Region Method

Part 72.XML file format x3p

1 Scope

GB/T 33523.72-2022 is the part of the GB/T 33523 series that fixes x3p, the XML file format used to store and exchange areal topography and profile data — the vocabulary the format rests on, including the zip data package that holds a measurement, and the requirements a file has to meet for a record written on one instrument to be read on another. An areal measurement is not a single number: it is a height grid plus the axis definitions, the calibration information, the flags for missing points and the instrument metadata that say what the grid means. When all of that travels inside a vendor's own binary, the data stops at the software that produced it, comparison between laboratories turns into an argument about converters, and a surface archived years earlier may no longer be readable when a warranty claim reopens the file. Keeping the numerical data and its description together in one documented container lets the same surface be re-evaluated later, by a customer or by a third party, without going back to the part. An informative appendix places the document in the GPS matrix model. Of use to makers of profilometers and areal measuring microscopes, metrology software developers, calibration laboratories, and manufacturers who have to hand over surface data with a component.

This document specifies the XML file format x3p for storing and exchanging topography and contour data.

2 Normative references

The contents of the following documents constitute the essential provisions of this document through normative references in the text. Among them, dated references

For documents, only the version corresponding to the date is applicable to this document; for undated reference documents, the latest version (including all amendments) is applicable to

this document.

ISO 25178-600 Geometric product specification (GPS) Surface structure area method Part 600.Area topography measurement method

3 Terms and Definitions

The terms and definitions defined in ISO 25178-600 and the following apply to this document.

3.1

zip data package zip-container

A file format that can be used as a package of multiple files and folders, and also supports compression of stored content.

Note. See reference [3] for the description of the file format.

3.2

Information Digest Algorithm md5

A method of computing a unique 16-byte binary checksum, used to check the integrity of a file.

Note 1.Binary values are usually represented as 32 hexadecimal digits.

Note 2.See reference [1].

3.3

16-bit signed integer int16

Use 2 bytes to represent a signed integer.

Note 1.The minimum value of the int16 type is -32768, and the maximum value is 32767.

Note 2.In the memory, the low byte is stored in the low address unit, and the high byte is stored in the high address unit.

3.4

32-bit signed integer int32

Signed integers are represented by 4 bytes.

Note 1.The minimum value of the int32 type is -2147483648, and the maximum value is 2147483647.

Note 2.In the memory, the low byte is stored in the low address unit, and the high byte is stored in the high address unit.