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JJG 571-2004: Verification Regulation of Reading Microscope and Measuring Microscope
Status: Valid JJG 571: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| JJG 571-2004 | English | 519 |
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Verification Regulation of Reading Microscope and Measuring Microscope
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JJG 571-2004
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| JJG 571-1988 | English | 479 |
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Verification Regulation of Measuring Microscope
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JJG 571-1988
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PDF similar to JJG 571-2004
Basic data | Standard ID | JJG 571-2004 (JJG571-2004) | | Description (Translated English) | Verification Regulation of Reading Microscope and Measuring Microscope | | Sector / Industry | Metrology & Measurement Industry Standard | | Classification of Chinese Standard | A52 | | Classification of International Standard | 17.040 | | Word Count Estimation | 20,233 | | Date of Issue | 2004-09-21 | | Date of Implementation | 2005-03-21 | | Older Standard (superseded by this standard) | JJG 571-1988% JJG 904-1996 | | Quoted Standard | JJF 1001; JJF 1059; JJF 1094; JB/T 2369; JB/T 9339 | | Regulation (derived from) | 2004 technical regulations issued by national metrology (industrial measurement 2005 Volume 15, Issue 1) | | Issuing agency(ies) | State Administration of Quality Supervision, Inspection and Quarantine | | Summary | This standard applies to indexing is not greater than 0. 01mm, 8mm measuring range upper limit to the reading microscope, and dividing the value is not greater than 0. 01mm, measuring range: Portrait of (0 ~ 50) mm, transverse (0 ~ 13) mm The initial verification of measuring microscope, follow-up testing and use test. | JJG 571-2004: Verification Regulation of Reading Microscope and Measuring Microscope---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 Reading Microscope and Measuring Microscope
National Metrology Verification Regulations of the People's Republic
Reading, measuring microscope
Released on.2004-09-21
2005-03-21 implementation
The General Administration of Quality Supervision, Inspection and Quarantine issued
Replace JJG 904-1996
Replace JJG 571-1988
This regulation was approved by the General Administration of Quality Supervision, Inspection and Quarantine on September 21,.2004, and
It will take effect on March 21,.2005.
Focal Point. National Geometric Quantity Engineering Measurement Technology Committee
Main drafting unit. China Institute of Metrology
Henan Institute of Metrology and Testing
Participated in the drafting unit. The 704 Institute of China Aviation Industry First Group Corporation
This regulation entrusts the National Geometric Quantity Engineering Parametric Measurement Technical Committee to explain
The main drafters of this procedure.
Zhu Xiaoping (China Institute of Metrology)
Zhang Weidong (Henan Province Metrology and Testing Institute)
Zhang Heng (China Institute of Metrology)
Participate in the drafters.
Zhao Xinli (The 704 Institute of China Aviation Industry First Group Corporation)
Wang Weichen (China Institute of Metrology)
table of Contents
1 Scope (1)
2 Citations (1)
3 Overview (1)
4 Metrological performance requirements (2)
4.1 Displacement caused by the radial force of the circular table (2)
4.2 Parallelism of the movement direction of the glass table and the longitudinal and lateral slides (2)
4.3 Straightness of vertical and horizontal slide movement (2)
4.4 Mutual verticality of vertical and horizontal slide movement (2)
4.5 The verticality of the microscope lifting direction to the glass table (2)
4.6 Indication error of round table (2)
4.7 Magnification error of the microscope (2)
4.8 Return error (2)
5 General technical requirements (3)
5.1 Appearance (3)
5.2 Interaction of various parts (3)
5.3 Relative position between the lines of the microscope (3)
5.4 Prism seat rotation causes image displacement (4)
5.5 Coincidence between the center of the spiral reticle and the center of rotation (4)
6 measuring instrument control (4)
6.1 Verification conditions (4)
6.2 Verification project (4)
6.3 Verification method (4)
6.4 Processing of verification results (9)
6.5 verification period (9)
Appendix A Analysis of the Uncertainty of the Results of the Errors in the Reading Microscope (10)
Appendix B Uncertainty Analysis of Measurement Results of Measurement Microscope Errors (12)
Appendix C Verification device for verifying the coincidence of the spiral dividing center with its center of rotation (14)
Appendix D Verification certificate and verification result notice page format (15)
Reading and measuring microscope verification procedures
1 Scope
This procedure is applicable to reading microscopes with a division value not greater than 0.01 mm and an upper measurement range up to 8 mm, and
The division value is not more than 0.01mm, and the measurement range is. measurement in the longitudinal direction (0~50) mm and the lateral direction (0~13) mm.
The first verification, subsequent verification and in-use inspection of the microscope.
2 Citations
This procedure refers to the following documents.
JJF1001-1998 General measurement terms and definitions
JJF1059-1999 Measurement Uncertainty Evaluation and Representation
JJF1094-2002 Measuring instrument characteristic evaluation
JB/T 2369-1993 reading microscope
JB/T 9339-1999 Measuring microscope
When using this procedure, care should be taken to use the current valid version of the above cited documents.
3 Overview
Reading microscopes and measuring microscopes (hereinafter referred to as microscopes) are optical mechanical length measuring instruments, readings
The microscope is mainly used as the aiming and positioning reading device in the length measuring instrument, and can also be used for the scribe line width, spacing, etc.
Measurement of the length; the main purpose of the measuring microscope is to measure the part by the image method in Cartesian or polar coordinates.
Shape size. The shape of the reading microscope is shown in Figure 1, Figure 2, Figure 3. The shape of the measuring microscope is shown in Figure 4.
Shown.
Figure 1 One of the outlines of the reading microscope
1-objective lens; 2-measuring differential scrimmage box;
3-eyepiece; 4-micrometer knob; 5-light
Figure 2 Figure 2 of the reading microscope
1-objective lens; 2-micrometer knob; 3-eyepiece;
4-measuring differential scrimmage box; 5-zero adjustment knob; 6-light
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