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JJG 201-2018 English PDF

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JJG 201-2018: Testers for Dial Gauges
Status: Valid

JJG 201: Evolution and historical versions

Standard ID	Contents [version]	USD	STEP2	[PDF] delivered in	Standard Title (Description)	Status	PDF
JJG 201-2018	English	689	Add to Cart	5 days [Need to translate]	Testers for Dial Gauges	Valid	JJG 201-2018
JJG 201-2009	English	RFQ	ASK	3 days [Need to translate]	Measuring Tools for Profile of Rail		JJG 201-2009
JJG 201-2008	English	RFQ	ASK	6 days [Need to translate]	Verification Regulation of Tester for Dial Indicator Gauges	Obsolete	JJG 201-2008
JJG 201-1999	English	639	Add to Cart	5 days [Need to translate]	Verification Regulation of Tester for Dial Indicator Gauge	Obsolete	JJG 201-1999

PDF similar to JJG 201-2018

Standard similar to JJG 201-2018

JJG 517 JJG 5 JJG 0061 JJG 191 JJG(TZ)196

Basic data

Standard ID	JJG 201-2018 (JJG201-2018)
Description (Translated English)	Testers for Dial Gauges
Sector / Industry	Metrology & Measurement Industry Standard
Classification of Chinese Standard	A52
Word Count Estimation	30,377
Date of Issue	2018-12-25
Date of Implementation	2019-06-25
Older Standard (superseded by this standard)	JJG 201-2008
Regulation (derived from)	State Administration of Markets, Announcement No. 34 of 2018
Issuing agency(ies)	State Administration for Market Regulation

JJG 201-2018: Testers for Dial Gauges

---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.
(Indicating class measuring instrument verification procedure) National Metrology Verification Regulations of the People's Republic Indicator type measuring instrument Published on.2018-12-25 2019-06-25 implementation State Market Supervisory Administration released Indicator type measuring instrument Verification procedure forDialGauges Replace JJG 201-2008 Focal Point. National Geometric Quantity Engineering Measurement Technology Committee Main drafting unit. Henan Institute of Metrology China Testing Technology Research Institute The Fifth Institute of Electronics, Ministry of Industry and Information Technology China Institute of Metrology Participated in the drafting unit. Shenzhen Zhongtu Instrument Co., Ltd. Harbin Measuring and Cutting Tool Group Co., Ltd. Guangdong Institute of Metrology This regulation entrusts the National Geometric Quantity Engineering Parameter Measurement Technical Committee to explain The main drafters of this procedure. Zhang Weidong (Henan Institute of Metrology) Zhaoqing (China Testing Technology Research Institute) Chang Qing (Electronics Fifth Institute of the Ministry of Industry and Information Technology) Du Hua (China Institute of Metrology) Participate in the drafters. Ma Junjie (Shenzhen Zhongtu Instrument Co., Ltd.) Dong Yuwen (Harbin Measuring and Cutting Tool Group Co., Ltd.) Zhang Jiaqi (Guangdong Institute of Metrology)

Introduction (II) 1 Scope (1) 2 References (1) 3 Overview (1) 4 Metrology performance requirements (3) 4.1 Relative position of the end face of the differential cylinder and the fixed sleeve (3) 4.2 Distance between the fixed face of the fixed sleeve and the upper edge of the edge of the differential cylinder (3) 4.3 Surface roughness of the measuring surface of the measuring rod (3) 4.4 Flatness of the measuring surface of the measuring rod (3) 4.5 The perpendicularity of the measuring surface of the measuring rod and the axis of rotation of the measuring rod (3) 4.6 The perpendicularity and position of the cylinder axis and the axis of the rod (3) 4.7 Accuracy of image recognition (3) 4.8 Repeatability (3) 4.9 indication error (3) 4.10 Return error (4) 5 General technical requirements (4) 5.1 Appearance (4) 5.2 Interactions and basic functions (4) 6 measuring instrument control (5) 6.1 Verification conditions (5) 6.2 Verification items and verification equipment (5) 6.3 Verification method (6) 6.4 Processing of verification results (11) 6.5 Verification cycle (11) Appendix A Example of data processing for indication error and return error of dial indicator verification instrument (12) Appendix B Example of data processing for indication error and return error of dial gauge tester (14) Appendix C Example of data processing for the indication error of the raster type indicator meter (16) Appendix D Technical diagrams and requirements for the tools required to characterize the calibration tool (18) Appendix E Calibration method for grating micrometers indicating the error of the calibration tool (19) Appendix F Certificate Information and Verification Result Notice (20)

Introduction

JJG 201 "Indicator type measuring instrument" is written in JJF1002-2010 "National Metrology Verification Regulations Rules, JJF1059.1-2012 "Measurement Uncertainty Evaluation and Representation" as the basis and basis for JJG 201- 2008 "Indicating Measuring Instruments" was revised. And JJG 201-2008 "Indicating class measuring instrument verification instrument In addition to the editorial changes, the main technical changes are as follows. --- Reference file, deleted JJF1001-1998 "General Measurement Terms and Definitions", JJF1059- 1999 "Measurement and Expression of Measurement Uncertainty", JJF1094-2002 "Measuring Instrument Characteristics", added JB/T 11235-2012 "Indicator Calibration Instrument" and other reference documents; --- Added a schematic diagram of the subtype type and automatic indicator meter of the indicating type measuring instrument (see Figure 4); --- Increased the technical requirements, main verification equipment and verification of the 100mm grating type indicator meter method; --- Added the measurement performance requirement for the automatic indicator type measuring instrument, that is, the "accuracy of image recognition" Provisions (see 4.7), general technical requirements ie interaction and basic functions "illumination of image recognition systems should be brightness Uniform, optical imaging is clear, the image is complete" and the data processing software program of the fully automatic verifier should have Synchronous display function and other regulations (see 5.2.3, 5.2.4, 5.2.5 and 5.2.6); --- Removed the repetitive requirements for the CNC dial gauge tester (see 4.8). --- Revised the measurement interval of the 0mm~50mm segment of the numerical control type indicator calibration instrument (see Table 3 of 6.3.11); --- Added a grating micrometer verification method indicating the indication error of the measuring instrument (see Appendix E); --- Revised the "information certificate and the information on the inside of the verification result notice" (see Appendix F). The previous versions of JJG 201-2008 were released. ---JJG 201-1999, JJG 271-1996 merge; ---JJG 201-1980, JJG 345-1984 merge; ---JJG 271-1996; ---JJG 345-1984; ---JJG 201-1980. Indicating class measuring instrument verification procedure

1 Scope

This procedure is applicable to fully automatic and semi-automatic indications with a resolution of not more than 0.5μm and a range of not more than 100mm. The type gauge has a manual index with a division value (or resolution) of not more than 10 μm and a range of not more than 50 mm. The first verification, subsequent verification and in-use inspection of the metering tool.

2 reference files

This procedure refers to the following documents. JJG 34 indicator table (pointer, digital display) JB/T 11235-2012 indicator meter For dated references, only the dated version applies to this Code; any undated quotation The latest version (including all amendments) applies to this procedure.

3 Overview

The indicating type measuring instrument (hereinafter referred to as the measuring instrument) is based on a grating scale or a precision lead screw as a measurement standard along a straight line. The guide rail moves the output length standard value, and measures various indicator gauges by image recognition or direct reading. Digital display) Instrument for indicating parameters such as error. The tester is divided into vertical according to the verification method (the measurement axis is vertical when the indicator is checked, see Figure 1, Figure 2) and lying (Measure the axis level when checking the indicator, see Figure 3, Figure 4); according to the reading mode is divided into direct reading (see Figure 1, Figure 2, Figure 3) and image recognition (see Figure 4); according to the driving method can be divided into manual, semi-automatic and fully automatic three; According to the instrument function, it can be divided into a dial gauge tester (see Figure 1), a dial gauge tester (see Figure 2) and a meter calibration instrument. (See Figure 3 and Figure 4). Figure 1 Schematic diagram of the dial gauge 1-base; 2-column; 3-V-shaped holder; 4-table; 5--rod; 6-micrometer holder; 7-fixed sleeve; 8-differential cylinder; 9-V-shaped bracket; 10--lever dial indicator

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Question 5: Should I purchase the latest version JJG 201-2018?

Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version JJG 201-2018 even if the enforcement date is in future. Complying with the latest version means that, by default, it also complies with all the earlier versions, technically.