JJG 525-2014 English PDFUS$599.00 · In stock
Delivery: <= 5 days. True-PDF full-copy in English will be manually translated and delivered via email. JJG 525-2014: Verification Regulation of Wedge-feet Calibrator for Micrometers Status: Valid JJG 525: Historical versions
Basic dataStandard ID: JJG 525-2014 (JJG525-2014)Description (Translated English): Verification Regulation of Wedge-feet Calibrator for Micrometers Sector / Industry: Metrology & Measurement Industry Standard Classification of Chinese Standard: A52 Classification of International Standard: 17.040 Word Count Estimation: 26,252 Date of Issue: 11/17/2014 Date of Implementation: 5/17/2015 Older Standard (superseded by this standard): JJG 525-2002 Regulation (derived from): The State Administration of Quality Supervision, Inspection and Quarantine Notice 2014 No. 125 Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine Summary: This Standard applies to indexing is 1��m, 0.2��m, 0.1��m and 0.02 ��m ramp micrometer Calibrating the initial verification, use and subsequent verification check. JJG 525-2014: Verification Regulation of Wedge-feet Calibrator for Micrometers---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 Wedge-feet Calibrator for Micrometers State verification procedures People's Republic of China Ramp-type micrometer Calibrator Issued on. 2014-11-17 2015-05-17 implementation The State Administration of Quality Supervision, Inspection and Quarantine released Ramp-type micrometer Calibrator Verification Regulation Replacing JJG 525-2002 NFP. National Engineering Geometrical Parameters Measurement Technology Committee Main drafting unit. Henan Institute of Metrology Henan Medical Device Testing Sanmenxia Zhongyuan Measuring Instruments Ltd. This procedure works commissioned by the National geometric parameter measurement technology committee responsible for the interpretation The main drafters of this procedure. Huang Yuzhu (Henan Institute of Metrology) Gu Xiaojie (Henan Institute of Metrology) Hao Xiali (Henan Medical Device Testing) Liu Quan (Henan Institute of Metrology) YU Zhen River (Sanmenxia Zhongyuan Measuring Instruments Co., Ltd.) table of ContentsIntroduction (Ⅱ) 1 Scope (1) 2 Overview (1) 3 metering performance requirements (2) Face ramp and the anvil surface roughness of 3.1 (2) Flatness ramp face 3.2 (2) Readings from the outer drum 3.3 scale reticle plane edge to (2) 3.4 load lever probe (2) 3.5 Instrument indication error (2) 3.6 Return error (2) 3.7 Repeatability (2) 4 General Requirements (2) 4.1 Appearance (2) 4.2 Interaction of each part (3) 5 control of measuring instruments (3) 5.1 test conditions (3) 5.2 test project and the main test instrument (3) 5.3 Verification Methods (4) 5.4 Verification Results Processing (6) 5.5 test cycle (6) Appendix A Indexing is 1μm Calibrator (0 ~ 2) mm indication error range test sample (7) Appendix B stage three ribs technical requirements (8) Appendix C is 0.2μm oblique block indexing formula micrometer Calibrator (0 ~ 10) μm indication error of measurement Uncertainty Evaluation (9) Appendix D Indexing formula is 0.02μm lever ramp micrometer Calibrator (0 ~ 1) μm indication error of measurement Uncertainty Evaluation Results (13) Appendix E calibration certificate/test results in the notice page format (17)IntroductionThis procedure is prepared in accordance with JJF1002-2010 "national verification procedures to write rules" GB/T 24634-2009/ISO 14978.2006 "Geometrical Product Specifications (GPS measuring device universal concepts and to Seeking "and JJF1059.1-2012" Measurement Uncertainty and said that "the provisions of the JJG 525-2002 "Ramp type micrometer calibration device" subject to revisions. Compared with JJG 525-2002 "slant-block micrometer Calibrator" The main technical changes in addition to editorial changes outside as follows. --- Face to ramp block and the surface roughness of the test methods are described anvil; --- Increasing the load change metering performance requirements and the corresponding test methods; --- Modify the indexing formula is 0.2μm ramp micrometer (0-10) shows a value within the range of measurement error μm range limit The technical requirements; --- Revised indication error range of test methods, showing the value read from the subject point on the change in inductance micrometer Read the subject point on the ramp micrometer Calibrating the reading of the drum indication; --- Depending on dividing the value of the ramp dial gauge indication error test the range of the hysteresis error of technical indicators Its significant digits has been modified; --- Is 0.1μm, ramp micrometer readings Calibrating drum verification of indication error of indexing 0.2μm 2 blocks to use the same amount of direct method; --- The "change indication of" verification entries to "Repeatability" test method has been modified; --- Added Appendix A, B, C, D, E. The previous versions of this Recommendation published case. JJG 525-2002 JJG 525-1988 Ramp-type micrometer Calibrator Verification Regulation1 ScopeThe test procedures applicable to indexing is 1μm, 0.2μm, 0.1μm and 0.02μm ramp type micrometer Unit Given the initial verification, subsequent verification and the use of checks.2 OverviewRamp-type micrometer calibration device (hereinafter referred to as the Calibrator) is a use of helical or spiral ramp deputy and deputy, ramp and The principle of the lever combination, give the exact length of the amount of displacement measuring instruments, mainly for inductive, capacitive or grating Micrometer and pneumatic measuring and torsion spring comparator and other geometric measuring instruments verification or calibration. Verification is shaped according to their structure Type into spiral ramp and the lever-type vice Vice type categories spiral ramp, its shape shown in Figure 1, Figure 2.1 spiral ramp deputy formula Calibrator1- next to the probe clamping bracket; 2- axial clamping probe holder; ramp 3-; 4- scale; 5- reading drum; 6- differential screw; 7- anvil; 8- base; 9- oblique block Figure 2 spiral ramp lever vice formula Calibrator 1- ramp on the block; 2 - the lever; 3- axis probe clamping bracket holes; 4- spring fulcrum; 5- scale; 6- reading drum; 7- differential screw; 8- differential cylinder rod; 9- anvil; 10- ramp block; 11- base; 12- lever probe ...... |
