JJG 2047-2006 English PDF

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JJG 2047-2006: Verification Scheme of Measuring Instruments for Torque
Status: Valid

JJG 2047: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
JJG 2047-2006	289	Add to Cart	3 days	Verification Scheme of Measuring Instruments for Torque	Valid
JJG 2047-1990	239	Add to Cart	2 days	Verification Scheme of Measuring Instruments for Torque	Obsolete

Similar standards

JJF 1943   GB/T 36126   GB/T 1885   JJF 2037   JJF 2038   JJF 2047   

Basic data

Standard ID: JJG 2047-2006 (JJG2047-2006)
Description (Translated English): Verification Scheme of Measuring Instruments for Torque
Sector / Industry: Metrology & Measurement Industry Standard
Classification of Chinese Standard: A53
Classification of International Standard: 17.100
Word Count Estimation: 11,150
Date of Issue: 2006-12-08
Date of Implementation: 2007-06-08
Older Standard (superseded by this standard): JJG 2047-1990
Quoted Standard: AQSIQ Announcement No. 187 of 2006
Regulation (derived from): AQSIQ Announcement No. 187 of 2006
Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine
Summary: This standard applies to the torque verification of measuring instruments and money transfer. It provides for the use of torque national benchmarks, the benchmark metrology parameters and measurement standards to help transfer torque measuring instruments work program unit measure and indicate the uncertainty and the basic test methods. In carrying out the calibration, also brother as a basis for traceability.

JJG 2047-2006: Verification Scheme of Measuring Instruments for Torque

---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 Scheme of Measuring Instruments for Torque National Measurement and Verification System of the People's Republic of China Torque measuring instrument Released on.2006-12-08 2007-06-08 implementation The General Administration of Quality Supervision, Inspection and Quarantine issued Torque measuring instrument verification system table Replacing JJG 2047-1990 The verification system was approved by the General Administration of Quality Supervision, Inspection and Quarantine on December 8,.2006. And will be implemented as of June 08,.2007. Focal Point. National Strength Hardness Measurement Technical Committee Main drafting unit. China Institute of Metrology China Aviation First Group 340 Institute Participated in drafting unit. Shanghai Institute of Metrology and Testing Technology CSIC Research Institute No. 704 Jilin Institute of Metrology This verification system table is explained by the National Force Value Measurement Technical Committee. The main drafters of this verification system table. Guo Bin (China Institute of Metrology) Qin Haifeng (China Aviation First Group 304 Institute) Jiang Ximing (China Institute of Metrology) Participate in the drafters. Xiao Fei (Shanghai Institute of Metrology and Testing Technology) Li Tao (The 704th Research Institute of CSIC) Qu Zhuo (Jilin Institute of Metrology) Lin Hai (China Institute of Metrology) Zhang Ye (China Institute of Metrology) Wu Hao (China Institute of Metrology)

table of Contents

1 Scope (1) 2 Measurement reference equipment (1) 2.1 Torque National Standard (1) 3 measuring standard equipment (1) 3.1 Torque standard device (2) 3.2 Standard Torque Meter (3) 3.3 Torque wrench verification device (3) 4 working measuring instruments (3) 4.1 Torsion Testing Machine (3) 4.2 Torque Wrench (4) 4.3 Other Torque Meters (4) 4.4 Dynamometer (4) 4.5 Torque and Speed Measuring Device (4) 4.6 Other torque measuring devices (4) 5 Torque measuring instrument verification system block diagram (4) Appendix A Calculation of System En (6) Torque measuring instrument verification system table

1 Scope

This test system table is applicable to the verification and value transfer of torque measuring instruments. It specifies the use of the torque national standard Pathway, a metrological parameter of the reference and a procedure for transmitting a torque unit quantity to the working measuring instrument by means of a metering standard, and Indicate its uncertainty and basic standard methods. It can also be used as a basis for traceability when performing calibration.

2 measuring reference equipment

2.1 Torque National Standard The torque national standard mainly undertakes the work of recurring, preserving and transmitting the torque value, and is the unified national torque value. The highest basis. According to the current situation in China, they consist of three static weight torque bases of 50Nm, 1kNm and 5kNm. The composition of the machine, the main technical data is shown in Table 1. Table 1 Main technical data of torque reference machine Baseline Torque Expansion Uncertainty (k=3) Torque Value Range/Nm Minimum Torque/Nm 50Nm 0.01% 0.5~55 0.5 1kNm 0.01% 10~1090 10 5kNm 0.01% 50~5450 50 The static weight torque reference machine uses the weight of the weight as the standard load, and the standard torque is generated by the action of the force arm lever. Moment, with the appropriate mechanism, automatically, smoothly and accurately apply the working moment and the balancing moment to the inspected in a predetermined order The torque standard machine on the torque meter. Each benchmark has two sets of large and small weights, which are divided into left and right sides of the lever. It can generate torque with equal torque values in both directions, positive and negative. The metrology performance of such a torque machine depends on the force value Uncertainty, uncertainty of the arm, etc. The former mainly depends on the quality of the weight, the acceleration of gravity at the installation site, Uncertainty in measurement of density and air density of weights, as well as loading and unloading methods, mechanical structure and quality stability of weights Wait. The latter mainly depends on the measurement uncertainty of the length of the lever and the construction of the lever, the support structure, and the horizontal control process. Degree is also closely related to coaxiality, processing technology, installation quality and so on. The reproducibility of the torque reference is mainly traced to the mass, length, and time basic quantities. Can use the component method, pass no Deterministic analysis and evaluation, and calculate its extended uncertainty. At the same time, in order to ensure that the benchmark torque value is consistent with the international Sex, the benchmark should regularly participate in relevant international comparisons.

3 measuring standard appliances

Torque standards can be divided into two categories throughout the torque calibration system. The first type is to generate (or reproduce) the torque value. Fixed standard. At present, the static-weight structure standard machine is mainly used, and some machines with larger ranges adopt the lever type knot. Structure, there are some standard devices for other structural principles. The second category is a variety of portable standards that transmit torque values. this The class standard can be divided into a dial gauge type, a strain gauge torque meter and the like according to the measurement principle. ......

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