JJG 379: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| JJG 379-2009 | English | 879 |
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Verification Regulation of Wide Range Dauges Reading in 0.01mm
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JJG 379-2009
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| JJG 379-1995 | English | 479 |
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Verification Regulation of Wide Range Dial Gauges Reading in 0. 01mm
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JJG 379-1995
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PDF similar to JJG 379-2009
Basic data | Standard ID | JJG 379-2009 (JJG379-2009) | | Description (Translated English) | Verification Regulation of Wide Range Dauges Reading in 0.01mm | | Sector / Industry | Metrology & Measurement Industry Standard | | Classification of Chinese Standard | A52 | | Classification of International Standard | 17.040 | | Word Count Estimation | 22,238 | | Date of Issue | 2009-07-10 | | Date of Implementation | 2010-01-10 | | Older Standard (superseded by this standard) | JJG 379-1995 | | Quoted Standard | JJF 1001-1998; JJF 1130-2005; JJF 1094-2002; GB/T 1219-2008; GB/T 18761-2007 | | Regulation (derived from) | AQSIQ Announcement No. 78 of 2009 | | Issuing agency(ies) | General Administration of Quality Supervision, Inspection and Quarantine | | Summary | This standard applies to dividing the value/resolution is 0. 01mm, measuring range upper limit is greater than 10mm, less than or equal to 100mm of Analog digital dial indicator with a large range of initial verification, testing and use of follow-up inspection. | JJG 379-2009: Verification Regulation of Wide Range Dauges Reading in 0.01mm---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.
Verification Regulation of Wide Range Dauges Reading in 0.01mm
People's Republic of China National Metrological Verification Procedures
Large scale dial indicator
Posted.2009-07-10
2010-01-10 implementation
General Administration of Quality Supervision, Inspection and Quarantine released
Large scale dial indicator verification procedures
Replacing JJG 379-1995
This Regulation was approved by the General Administration of Quality Supervision, Inspection and Quarantine on July 10,.2009 and has been issued since
January 10,.2010 shall come into force.
Administrative Organization. National Geometrical Engineering Parameters Measurement Technical Committee
Drafting unit. Tianjin Institute of Metrology Supervision and Inspection
Guilin measuring cutting tools limited liability company
China Test Technology Research Institute
This procedure entrusts the national geometric quantity engineering parameter measurement technical committee to be responsible for explaining
Drafters of this Code.
Wang Xinhang (Tianjin Institute of Metrology Supervision and Inspection)
Liu Jiali (Tianjin Institute of Metrology, Supervision and Inspection)
Jianhua Sun (Tianjin Institute of Metrology Supervision and Inspection)
Zhao Weirong (Guilin measuring cutting tools limited liability company)
Yong-Kang Chen (China Institute of Test Technology)
table of Contents
1 Scope (1)
2 References (1)
3 Overview (1)
4 Metrology Requirements (2)
4.1 pointer end and dial engraved width (2)
4.2 Probe surface roughness (2)
4.3 measuring force (2)
4.4 digital dial indicator shows the value of drift (2)
4.5 Indication Variability (2)
4.6 rod by the radial force on the indication of the impact (2)
4.7 indication error (2)
4.8 Return error (3)
5 General technical requirements (3)
5.1 Appearance (3)
5.2 various parts of the interaction (3)
5.3 pointer and dial mutual position (3)
6 measuring instruments control (3)
6.1 test conditions (3)
6.2 test items (4)
6.3 test method (4)
6.4 test results of the treatment (6)
6.5 test cycle (6)
Appendix A (0 ~ 50) mm number of large-scale explicit indication of the value of the error measurement uncertainty (7)
Appendix B (0 ~ 100) mm pointer large scale indication of the value of the error measurement uncertainty evaluation (10)
Appendix C pointer large scale percentile value error and return error data processing example (13)
Appendix D digital display of large-scale percentile error and return error data processing example (14)
Appendix E Certificate of Conformity and Notice of Conformity (Inside Page) Format (15)
Large scale dial indicator verification procedures
1 Scope
This regulation applies to the division value/resolution of 0.01mm, the upper limit of the measurement range is greater than 10mm, less than or equal to
100mm pointer or digital large-scale dial indicator for the first test, follow-up test and in use test.
2 References
General measurement terms and definitions
Guidance on the assessment of uncertainty in the calibration of geometric quantities measuring equipment
JJF1094-2002 Measurement instrument characterization
GB/T 1219-2008 instruction sheet
GB/T 18761-2007 digital display instructions
When using this code, care should be taken to use the currently valid version of the above cited references.
3 Overview
Large scale dial indicator (hereinafter referred to as the dial indicator) is divided into two types of pointer and digital explicit. Pointer is the use of rack teeth
Wheel drive, the linear displacement of the measuring rod into a pointer angular displacement measuring instruments; digital display is the use of electronic sensors
And digital display technology, the rod will be displayed straight line displacement measuring instruments. Dial indicator is mainly used to measure the size of parts
Inch and shape error and so on. The type shown in Figure 1, Figure 2.
Figure 1 pointer dial indicator
1-long pointer; 2-speed pointer; 3-dial;
4-sleeve; 5-rod; 6- probe
Figure 2 Explicit dial indicator
1-body; 2-display; 3- function keys;
4-sleeve; 5-rod; 6- probe
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