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JJG 2007-2015 English PDF

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JJG 2007-2015: Verification Scheme of Time and Frequency Measuring Instruments
Status: Valid

JJG 2007: Evolution and historical versions

Standard ID	Contents [version]	USD	STEP2	[PDF] delivered in	Standard Title (Description)	Status	PDF
JJG 2007-2015	English	229	Add to Cart	3 days [Need to translate]	Verification Scheme of Time and Frequency Measuring Instruments	Valid	JJG 2007-2015
JJG 2007-2007	English	399	Add to Cart	3 days [Need to translate]	Verification Scheme of Time and Frequency Measuring Instruments	Obsolete	JJG 2007-2007
JJG 2007-1987	English	199	Add to Cart	2 days [Need to translate]	Verification System of Time and Frequency Measuring Instruments	Obsolete	JJG 2007-1987

PDF similar to JJG 2007-2015

Standard similar to JJG 2007-2015

GB/T 3222.1 JJF 1234 JJF 1396 JJF 2007 JJF 1901 JJF 1900

Basic data

Standard ID	JJG 2007-2015 (JJG2007-2015)
Description (Translated English)	Verification Scheme of Time and Frequency Measuring Instruments
Sector / Industry	Metrology & Measurement Industry Standard
Classification of Chinese Standard	A57
Classification of International Standard	17.080
Word Count Estimation	10,129
Date of Issue	2015-12-07
Date of Implementation	2016-06-07
Older Standard (superseded by this standard)	JJG 2007-2007
Quoted Standard	JJF 1001; JJF 2059.1-2012; JJF 1180
Regulation (derived from)	?AQSIQ 2015 Nian (No.148)
Issuing agency(ies)	General Administration of Quality Supervision, Inspection and Quarantine
Summary	This standard applies to the transfer of time-frequency values, including time-frequency measurements from time-frequency measurement standards through the measurement standards to the work of the transfer of equipment, the value of transmission methods and measurement of transmission capacity. In carrying out calibration, can also be used as the basis for traceability.

JJG 2007-2015: Verification Scheme of Time and Frequency Measuring Instruments

---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 Time and Frequency Measuring Instruments National People's Republic of China Metrological Verification System Time and frequency measuring instruments 2015-12-07 released 2016-06-07 implementation State Administration of Quality Supervision, Inspection and Quarantine issued Time and frequency measuring instruments Verification system table Replacing JJG 2007-2007 Unit. National Time Frequency Measurement Technical Committee The main drafting unit. China Institute of Metrology Participated in the drafting unit. Shanghai Institute of Metrology and Testing Technology Aerospace Science and Industry Group Second Institute 203 The commissioning system table commissioned by the National Time Frequency Measurement Technical Committee is responsible for the interpretation The main system of the test system. Zhang aimin (China Institute of Metrology) Liang Kun (China Institute of Metrology) Participate in the drafters. Dong Ling (Shanghai Institute of Metrology and Testing Technology) Ge Jun (203 Institute of Aerospace Science and Industry)

Introduction (II) 1 Scope (1) 2 References (1) 3 measurement basis (1) 3.1 Name and magnitude (1) 3.2 Frequency Uncertainty and Time Deviation (1) 3.3 Delivery method (2) 4 Metrological standards (3) 4.1 Name and magnitude (3) 4.2 Frequency deviation and time deviation (3) 4.3 Transfer method (3) 5 Work measuring instruments (4) 5.1 Name and measurement range of typical work measuring instruments (4) 5.2 Frequency deviation and time deviation of work measuring instruments (4) 6 time frequency measurement equipment inspection system table (5)

Introduction

The test system table is based on JJF1001-2011 "General measurement terms and definitions", JJF1104-2003 "country Home measurement system to prepare the rules of the system "and JJF1002-2010" national measurement procedures for the preparation of rules "as the basis Revised JJG 2007-2007. Compared with JJG 2007-2007 "time frequency measurement instrument verification system table", in addition to editorial changes, the main The technical content has the following changes. - no longer use the concept of frequency accuracy, use frequency uncertainty at the reference level, standard and work metering Appliances use the maximum allowable frequency deviation; - the measurement of the base name and technical indicators were revised; In the measurement reference transmission method, direct measurement is added to the frequency offset comparator method for frequency transmission. Transmission to supplement the satellite bidirectional time frequency transmission and fiber time frequency transfer method; --- added the atomic time standard; In the metrological standard delivery method, the time frequency remote transmission method is supplemented. For the direct measurement of frequency The time difference measuring instrument and the phase meter method; --- Work Metering Appliances Added GNSS Receiver, GNSS Signal Simulator. This test system table version of the previous release. --- JJG 2007-2007; --- JJG 2007-1987. Time and frequency measuring instruments

1 Scope

The calibration system table is suitable for time frequency magnitude transmission, including the time frequency value from the time frequency measurement reference pass The measurement relationship between the measurement standard and the working measuring instrument, the method of measuring the value and the measurement ability when the value is transmitted. In the open Exhibition calibration, but also as a basis for the value of traceability.

2 reference file

Standard Terminology and Definitions for JJF1001 Evaluation and Representation of Measurement Uncertainty JJF1059.1-2012 JQF1180 Terminology and definition of time and frequency nouns Where the date of the reference file, only the date of the version applies to the system table, all do not note the date of the reference text , The latest version (including all modifications) applies to this system.

3 measurement basis

3.1 name and value The time-frequency measurement base includes the seconds-length national measurement basis (hereinafter referred to as the second-length basis) and the atomic time-scale national meter The benchmark (hereinafter referred to as the atomic time scale reference). 3.1.1 seconds long baseline The seconds long datum is directly reproduced in seconds defined by the physical device, currently for the NIM5 laser cooled cesium atom fountain clock, the main To use. 1) participation in international atomic generation; 2) Direct calibration of the atomic time scale reference seconds. The output frequency of the second reference is 9192631770Hz. 3.1.2 atomic time scale reference The atomic time scale is composed of a set of continuously working atomic clocks, internal alignment systems and external alignment systems. Global Navigation Satellite System (GNSS) Time Frequency Transmission and Satellite Bidirectional Time Frequency Transfer (TWSTFT) Participation International Bureau of Metrology (BIPM) organized by the International Atomic Time (TAI) to establish and maintain standard time, code-named UTC (NIM). UTC (NIM) gives 5MHz, 10MHz and 100MHz standard frequency signals, 1PPS standard time Signal and Beijing time. Note. The Global Navigation Satellite System (GNSS) currently includes GPS in the United States, GLONASS in Russia, Galileo in the European Union And China 's BDS (Big Dipper). 3.2 Frequency Uncertainty and Time Deviation 3.2.1 seconds long reference frequency uncertainty Multiple physical and technical factors cause the frequency of the second basis of the frequency of the complex value deviation from the definition value. To assess the various factors

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