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JJG 34-2022 English PDF

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JJG 34-2022: Dial Gauges
Status: Valid

JJG 34: Evolution and historical versions

Standard IDContents [version]USDSTEP2[PDF] delivered inStandard Title (Description)StatusPDF
JJG 34-2022English659 Add to Cart 5 days [Need to translate] Dial Gauges Valid JJG 34-2022
JJG 34-2008English799 Add to Cart 4 days [Need to translate] Dial Gauges (dial and digital) Obsolete JJG 34-2008
JJG 34-1996English599 Add to Cart 4 days [Need to translate] Verification Regulation of Dial Gauges (reading in 0. 01mm and 0. 001mm) Obsolete JJG 34-1996
JJG 34-1984EnglishRFQ ASK 3 days [Need to translate] Verification Regulation of Dial indicator with Scale Division of 0.01 mm Obsolete JJG 34-1984

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Basic data

Standard ID JJG 34-2022 (JJG34-2022)
Description (Translated English) Dial Gauges
Sector / Industry Metrology & Measurement Industry Standard
Classification of Chinese Standard A52
Word Count Estimation 32,357
Date of Issue 2022-12-07
Date of Implementation 2023-06-07
Issuing agency(ies) State Administration for Market Regulation

JJG 34-2022: 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.
National Metrology Verification Regulations of the People's Republic of China indicator Dial Gauges Released on 2022-12-07 2023-06-07 Implementation Released by the State Administration for Market Regulation Indicator Calibration Regulations ofDialGauges Replace JJG 34-2008 JJG 379-2009 Responsible unit. National Technical Committee of Geometric Engineering Parameter Metrology Main drafting unit. Tianjin Academy of Metrology Supervision and Testing Science China Institute of Testing Technology Participating in the drafting unit. Dongfang Electric Group Dongfang Electric Co., Ltd. Fifth Institute of Electronics, Ministry of Industry and Information Technology Suzhou Institute of Metrology and Testing Guilin Measuring Tools & Cutting Tools Co., Ltd. This regulation entrusts the National Geometric Engineering Parameter Metrology Technical Committee to be responsible for interpretation The main drafters of this regulation. Lu Ruijun (Tianjin Academy of Metrology Supervision and Testing) Liu Jiali (Tianjin Academy of Metrology Supervision and Testing) Chen Yongkang (China Academy of Testing Technology) Participating drafters. Liu Jun (Dongfang Electric Group Dongfang Electric Co., Ltd.) Changqing (Fifth Institute of Electronics, Ministry of Industry and Information Technology) Wang Yunxiang (Suzhou Metrology and Testing Institute) Zhao Weirong (Guilin Measuring Tools Co., Ltd.)

Table of contents

Introduction (Ⅱ) 1 Scope(1) 2 References(1) 3 Overview(1) 4 Metrological performance requirements (2) 4.1 The width of the end of the pointer of the pointer indicator and the width of the scale line of the dial (2) 4.2 Surface roughness of the measuring surface of the probe (3) 4.3 Stroke of indicator (3) 4.4 Measuring force(3) 4.5 Drift(4) 4.6 Indication variability(4) 4.7 Influence of the radial force on the measuring rod on the indication value (4) 4.8 Indication error(5) 4.9 Backhaul error(7) 5 General technical requirements (7) 5.1 Appearance(7) 5.2 Partial interactions (7) 5.3 Mutual position of the pointer and the dial of the pointer indicator (7) 6 Measuring Instrument Control(7) 6.1 Test environment conditions (7) 6.2 Verification items and verification devices (8) 6.3 Verification method (9) 7 Test result processing (12) 8 test cycles(12) Appendix A Data Processing Example A of Pointer Indication Value Error and Return Error (13) Appendix B Data Processing Example B of Pointer Indication Value Error and Return Error (14) Appendix C Data Processing Example A of Digital Display Value Error and Return Error (16) Appendix D Data Processing Example B of Digital Display Value Error and Return Error (19) Appendix E Inspection Certificate/Inner Page Information and Format of Inspection Result Notification (21)

Introduction

JJF1001-2011 "General Metrology Terms and Definitions", JJF1002-2010 "National Metrology Verification Regulations Compilation" "Rules" together constitute the basic series of norms for the revision of this regulation. This regulation is a revision of JJG 34-2008 "Indicating Meter (Pointer, Digital Display)" and JJG 379-2009 "Mass Consolidated revisions made in the Cheng Percentage Table. GB/T 1219-2008 "Instruction Sheet" was cited and referenced during the revision process And the relevant provisions of GB/T 18761-2007 "Electronic Digital Display Indicator" and other standards, and JJG 34-2008 and Compared with JJG 379-2009, the main technical changes except editorial modifications are as follows. --- Added a pointer indicator with a division value of 0.1mm and an upper limit of the measuring range not greater than 100mm, with a resolution of 0.001mm, the upper limit of the measurement range is not greater than 30mm digital display indicator, the resolution is 0.005mm, the measurement General technical requirements and metrological performance requirements for digital display indicators whose range upper limit is not greater than 50mm and corresponding inspection The relevant content of the method; ---Delete the requirement on the diameter of the shaft sleeve in 4.3 of the original regulations; --- According to JJF1001-2011 "General Measurement Terms and Definitions", change "repeatability" to "indicated value change sex"; --- Deleted in JJG 34-2008, for the indicator table with a division value of 0.002mm, any 0.05mm indicator The value error is measured by the positive stroke (fill point segment); ---Readjust the interval between the verification of the indicator; the technical requirements of the "first verification" and "subsequent verification" merge; --- Added the requirement for any 0.2mm indication error of the pointer indicator; ---Delete the evaluation part of the uncertainty of measurement results in Appendix A of JJG 34-2008 and JJG 379-2009; ---Modified the data processing of appendix A, appendix B, appendix C, appendix D indication value error and return error example. The previous releases of JJG 34-2008 are as follows. ---JJG 34-1996; ---JJG 34-1984, JJG 231-1980; The previous releases of JJG 379-2009 are as follows. ---JJG 379-1995. Indicator Calibration Regulations

1 Scope

This regulation applies to pointer indicators with a division value of 0.001mm and an upper limit of the measurement range not greater than 5mm; Pointer-type indicators with a precision value of 0.002mm and an upper limit of the measuring range not greater than 10mm; resolution of 0.001mm, Digital indicator with the upper limit of the measuring range not greater than 30 mm; the resolution is 0.005 mm, and the upper limit of the measuring range is not greater than Digital display indicators larger than 50mm; the division value/resolution is 0.1mm, 0.01mm, and the upper limit of the measuring range is not The initial verification, follow-up verification and in-use inspection of pointer type and digital display indicators larger than 100mm.

2 References

This procedure references the following documents. GB/T 1219-2008 instruction table GB/T 18761-2007 Electronic digital display indicator For dated references, only the dated version applies to this regulation; for undated references document, its latest version (including all amendments) applies to this regulation.

3 Overview

Indicators are divided into two categories. pointer type and digital display type. The pointer indicator table is driven by rack and pinion or lever and tooth It is a measuring instrument that converts the linear displacement of the measuring rod into the angular displacement of the pointer; the digital display indicator is transmitted through the measurement. A measuring instrument that digitally displays the linear displacement of the measuring rod by a sensor. The indicator is mainly used to measure the size and shape of the workpiece bit error etc. Its structural type is shown in Figure 1~Figure 3. Figure 1 Schematic diagram of pointer indicator 1-table body; 2-bezel; 3-rotation pointer; 4-dial; 5- pointer; 6- sleeve; 7- measuring rod; 8- measuring head

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