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JJG 506-2010 English PDF

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JJG 506-2010: Verification regulation of D.C.current comparator bridge
Status: Valid

JJG 506: Evolution and historical versions

Standard ID	Contents [version]	USD	STEP2	[PDF] delivered in	Standard Title (Description)	Status	PDF
JJG 506-2010	English	559	Add to Cart	5 days [Need to translate]	Verification regulation of D.C.current comparator bridge	Valid	JJG 506-2010
JJG 506-1987	English	679	Add to Cart	5 days [Need to translate]	Verification Regulation of DC Comparator Bridge	Obsolete	JJG 506-1987

PDF similar to JJG 506-2010

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Basic data

Standard ID	JJG 506-2010 (JJG506-2010)
Description (Translated English)	Verification regulation of D.C.current comparator bridge
Sector / Industry	Metrology & Measurement Industry Standard
Classification of Chinese Standard	A55
Classification of International Standard	17.220
Word Count Estimation	24,265
Date of Issue	2010-05-11
Date of Implementation	2010-11-11
Older Standard (superseded by this standard)	JJG 506-1987
Quoted Standard	JJG 166-1993; JJG 2051-1990; GB/T 3930-2008; JJF 1002-1998; JJF 1059-1999
Regulation (derived from)	AQSIQ Announcement No. 50 of 2010
Issuing agency(ies)	General Administration of Quality Supervision, Inspection and Quarantine
Summary	This standard applies to DC current comparator primary and secondary magnetic potential balance and the primary and secondary resistance on two potential equilibrium conditions, the measured resistance or resistance ratio bridge, that bridge DC compare ceremony (hereinafter referred to compare electricity ceremony bridge or bridge) of the initial verification, testing and use of follow-up inspection, also applies to multi-function electrical DC comparator bridge part. This procedure does not apply to DC compare ceremony bridge and automatic temperature compared ceremony bridge DC test.

JJG 506-2010: Verification regulation of D.C.current comparator bridge

---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 DCcurrent comparator bridge State verification procedures People's Republic of China DC Comparator Bridge Issued on. 2010-05-11 2010-11-11 implementation The State Administration of Quality Supervision, Inspection and Quarantine released DC Comparator Bridge test procedures Replacing JJG 506-1987 The regulations by the State Administration of Quality Supervision, Inspection and Quarantine approved on May 11, 2010, and from From November 11, 2010 into effect. Focal point. the National Technical Committee on Electromagnetic measurement Main drafting unit. Heilongjiang Provincial Academy of verification test China Institute of Metrology Participated in the drafting. the Highland Sting Instrument Research Institute Dalian metrological verification tests The measurement procedure commissioned the National Technical Committee is responsible for interpreting electromagnetic The main drafters of this procedure. Wang Yong (Heilongjiang Provincial Academy of verification test) Shao Haiming (China Institute of Metrology) Chang Group (Heilongjiang Provincial Academy of verification test) Drafters participate. Zhu Qing hair (on Highland Sting Instrument Research Institute) Han Jing (Dalian metrological verification tests) Cui Lijuan (Dalian metrological verification tests)

1 Scope (1) 2. Referenced Documents (1) 3 Overview (1) 4 metering performance requirements (2) 4.1 accuracy class (2) 4.2 basic error (2) 4.3 Non-linear error (3) 4.4 magnetic potential low frequency noise (3) 4.5 magnetic potential zero drift (3) 4.6 Included galvanometer indicator (4) 5 General technical requirements (4) 5.1 appearance of the structure (4) 5.2 Insulation resistance (4) 5.3 Dielectric strength (4) 6 Control of measuring instruments (4) 6.1 Verification condition (4) 6.2 Verification Project (4) 6.3 Verification Methods (6) 6.4 overall verification (11) 6.5 Verification Results processing (11) 6.6 test cycle (11) Appendix A linearity self-test form (13) Appendix B linearity self-test derived formula (16) Appendix C test certificate page format (18) Appendix D test results in the notice page format (19) DC Comparator Bridge test procedures

1 Scope

The order applies to the beginning of the DC current comparator, the potential of the secondary magnetic potential balance and the primary and secondary resistance balancing two strips Under parts, measuring resistance or resistance ratio bridge that DC Comparator Bridge (hereinafter referred to as Comparator Bridge or electricity Bridge) initial verification, subsequent verification and in-service inspection; also applies to the bridge portion of the multi-purpose comparator DC. This procedure does not apply to DC Comparator Bridge and automatic temperature calibration of DC Comparator Bridge.

2 Citations

JJG 166-1993 DC resistance test procedures JJG 2051-1990 DC Resistance Measuring Instruments Systems GB/T 3930-2008 resistance measurement with DC bridge JJF1002-1998 national verification procedures to write rules JJF1059-1999 Evaluation and Expression of Uncertainty in Measurement When using this procedure, it should pay attention to using the currently valid version of the documents cited.

3 Overview

Comparator Bridge is in DC Current Comparator magnetic potential balance by adjusting the comparator primary or secondary turns, To accurately adjust the current measured resistance ratio between the primary and secondary standard resistor, the two resistor voltage reaches equilibrium, the electric Drag ratio equals the turns ratio, and so relatively high precision resistance measurement instruments. Comparator Bridge and normal DC resistance bridge, are relatively instrument measuring resistance, but the role of the principle of Different, the difference is. Comparator Bridge to compensate for the measurement of the bridge instead of the latter measurement, thoroughly overcome The potential impact of lead resistance and contact resistance of the side button, and facilitates comparison of different nominal resistance measurements (over Ferry transfer); magnetic potential balance with the former premise, instead of the latter with a turns ratio of the resistance ratio, resulting in higher quasi Accuracy. Comparator Bridge circuit principle shown in Figure 1 works as follows. a. magnetic potential balance The primary winding and the secondary measured variable has a respective stator windings trimming DC current, which is generated in the iron core The opposite direction of the magnetic potential, the potential difference detected by the magnetic detection coil, and the closed-loop tracking and have poor conditioning system by manual adjustment Automatically adjust the slave (servo) Power generated by the secondary current, the magnetic potential balance that IxWx = IsWs, so there Is Ix = Wx Ws b. Potential equalization Adjusted measuring disk or the secondary winding trim (deviation disk) that regulate Is/Ix, so that means zero galvanometer G, the Rx and The Rs voltage drop equal, IxRx = IsRs, then. IsIx = Rx Rs

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