JJG 1117-2015_English: PDF (JJG1117-2015)
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Hydraulic-amplification Force Standard Machines
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| Standard ID | JJG 1117-2015 (JJG1117-2015) | | Description (Translated English) | Hydraulic-amplification Force Standard Machines | | Sector / Industry | Metrology & Measurement Industry Standard | | Classification of Chinese Standard | A53 | | Classification of International Standard | 17.100 | | Word Count Estimation | 14,137 | | Date of Issue | 2015-06-15 | | Date of Implementation | 2015-12-15 | | Older Standard (superseded by this standard) | JJG 734-2001 | | Quoted Standard | JJG 144-2007; JJF 1011-2006; JJG 2045-2010; JJG 2066-2006 | | Regulation (derived from) | AQSIQ Announcement 2015 No.72 | | Issuing agency(ies) | State Administration of Quality Supervision, Inspection and Quarantine | | Summary | This Standard applies to initial verification hydraulic force standard machine, and use the subsequent verification check. |
JJG 1117-2015
(Hydraulic force standard machine test procedures)
State verification procedures People's Republic of China
Hydraulic Force Standard Machine
Issued on. 2015-06-15
2015-12-15 implementation
The State Administration of Quality Supervision, Inspection and Quarantine released
Hydraulic force standard machine test procedures
In place of JJG 734-2001
Hydraulic Force Standard Machine content
Focal point. the National Technical Committee on Metering hardness force value
The main drafting units. China Institute of Metrology
China Testing Technology Research Institute
Innovative Testing Technology Co., Ltd.
Participated in the drafting unit. Shanghai Institute of Measurement and Testing
This procedure hardness values measured force commissioned by the National Technical Committee is responsible for interpretation
The main drafters of this procedure.
Nitrogeh Co (China Institute of Metrology)
Zhang Wei (China Institute of Metrology)
Taoze Cheng (Innovative Testing Technology Co., Ltd.)
He Jianping (China Testing Technology Research Institute)
Li Nan (China Institute of Metrology)
Drafters participate.
Yu Yueling (Shanghai Institute of Measurement and Testing)
table of Contents
Introduction (Ⅱ)
1 Scope (1)
2. References (1)
3 Overview (1)
4 metering performance requirements (1)
4.1 weight Quality (1)
4.2 zoom ratio (1)
4.3 base level of the table and pressed against the level of (1)
4.4 First load and maximum load discrimination (2)
4.5 Repeatability force, force value indication error and 30s load volatility (2)
5 General Requirements (2)
5.1 Grounds (2)
5.2 Hydraulic, mechanical and electrical systems (2)
6 Control of measuring instruments (2)
6.1 Verification condition (2)
6.2 test items and test methods (3)
6.3 Verification Results Processing (5)
6.4 test cycle (5)
Appendix A test recording format (6)
Appendix B test certificates/test results in the notice page format (7)
introduction
The procedure according to the rules JJF1002 "national verification procedures write rules" provisions of the preparation.
This procedure will JJG 734-2001 "force standard machine" verification procedures in the section on the hydraulic force standard machine isolated
Out alone developed a hydraulic force standard machine verification. Version with JJG 734-2001 related hydraulic force standard machine
Part of the contents compared to, in addition to editorial changes outside the main technical changes are as follows.
--- Increasing the reference document (see 2);
--- Remove the hydraulic force standard machine head coaxial drop down technical requirements;
--- Increasing the hydraulic force standard machine 30s load fluctuation of the technical requirements (see Table 2);
--- Test items and test methods to remove the drop-down head concentricity, increased the 30s load volatility (see
6.2);
--- Modify the test force standard machine required standard dynamometer technical requirements (see Table 4);
--- Modify the formula of weight discrimination quality (see 6.2.7);
--- When power error test performed, recommended use azimuth angle 0 °, 120 °, 240 ° azimuth position. If you can not
To achieve the above angular position, allows the use of 0 °, 90 °, 180 °, 270 ° azimuthal position (see 6.2.6.3);
--- Modify the description and the method of calculation of load fluctuations, the increase is calculated (see 6.2.8).
The procedure in relation to the hydraulic force standard machine previously issued as follows.
--- JJG 734-2001 "force standard machine"
--- JJG 295-89 "Hydraulic Force Standard Machine"
--- JJG 295-82 "Hydraulic Force Standard Machine"
Hydraulic force standard machine test procedures
1 Scope
The order applies to hydraulic force standard machine for initial verification, subsequent verification and the use of checks.
2. References
JJG 144-2007 standard dynamometer
JJF1011-2006 force value and hardness measurement terms and definitions
JJG 2045-2010 force value (≤1MN) Measuring Instruments Verification System
JJG 2066-2006 strong value measuring instruments Verification System
For cited documents with dates, only the dated edition applies to this procedure.
3 Overview
Hydraulic force standard machine (hereinafter referred to as force standard machine) is the weight force of gravity as the standard value, after a certain
After the combination of two sets of cylinder piston hydraulic system amplification, in a predetermined order to force values are automatically added to smooth the subject, school dynamometer
Force standard machine instrument (or force sensor) on. Force standard machine is mainly used for a variety of dynamometer, force transducers and load cells
The sensor test and calibration.
4 metering performance requirements
4.1 weight quality
Relative expanded force standard machine counterbalance mass uncertainty (coverage factor k = 2) should not exceed 0.005%. Standard force
Quality at all levels of the quasi weight machine according to equation (1) calculations.
m =
Tg1-ρa
ρw
(1)
Where.
m --- counterbalance mass, kg;
F --- force value generated, N;
T --- zoom ratio;
G --- gravitational force standard machine installation site, m/s2;
ρa --- air density, kg/m3;
ρw --- weight material density, kg/m3.
4.2 zoom ratio
Force standard machine zoom ratio relative expanded uncertainty (coverage factor k = 2) should not exceed 0.03%.
4.3 base level of the table and pressed against the levelness
Force standard machine base level of the table and pressed against the level of requirements in Table 1.
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