JJG 292: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| JJG 292-2009 | English | 959 |
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5 days [Need to translate]
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Verification regulation of rubidium atomic frequency standards
| Obsolete |
JJG 292-2009
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| JJG 292-1996 | English | 319 |
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Verification Regulation of Rubidium Gas Cell Frequency Standards
| Obsolete |
JJG 292-1996
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| JJG 292-1982 | English | RFQ |
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Verification Regulation of Rubidium Gas Cell Frequency
| Obsolete |
JJG 292-1982
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PDF similar to JJG 292-2009
Basic data | Standard ID | JJG 292-2009 (JJG292-2009) | | Description (Translated English) | Verification regulation of rubidium atomic frequency standards | | Sector / Industry | Metrology & Measurement Industry Standard | | Classification of Chinese Standard | A57 | | Classification of International Standard | 17.080 | | Word Count Estimation | 23,255 | | Date of Issue | 2009-07-10 | | Date of Implementation | 2010-01-10 | | Older Standard (superseded by this standard) | JJG 292-1996 | | Regulation (derived from) | AQSIQ Announcement No. 78 of 2009 | | Issuing agency(ies) | General Administration of Quality Supervision, Inspection and Quarantine | | Summary | This standard applies to rubidium atomic frequency standard initial verification, testing and use of subsequent verification. | JJG 292-2009: Verification regulation of rubidium atomic frequency standards---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 rubidium atomic frequency standards
State verification procedures People's Republic of China
Rubidium atomic frequency standard
Posted 2009-07-10
2010-01-10 implementation
The State Administration of Quality Supervision, Inspection and Quarantine released
Rubidium atomic frequency standard test procedures
Standards
Replacing JJG 292-1996
The regulations by the State Administration of Quality Supervision, Inspection and Quarantine July 10, 2009 for approval and self
From January 10, 2010 into effect.
Focal point. the National Commission on Time and Frequency Measurement Technology
Main drafting unit. CASIC hospital two hundred and three
Participated in the drafting unit. China Institute of Metrology
Chinese Academy of Sciences, Wuhan Institute of Physics and Mathematics
Frequency Technology Co., Ltd. Sichuan days when China Aoxing
The national time and frequency measurement procedures commissioned technical committee responsible for the interpretation
The main drafters of this procedure.
Xu Yueqing (CASIC hospital two hundred and three)
Jiangdong Wei (CASIC hospital two hundred and three)
Drafters participate.
Ma Xiulan (China Institute of Metrology)
Shengrong Wu (Chinese Academy of Sciences, Wuhan Institute of Physics and Mathematics)
Yang Lin (Frequency Technology Co., Ltd., Sichuan days when China Aoxing)
table of Contents
1 Scope (1)
2 Terms (1)
2.1 Power Characteristics (1)
2.2 frequency reproducibility (1)
3 Overview (1)
4 metering performance requirements (1)
4.1 Output signal (1)
4.2 Harmonic and non-harmonic (2)
4.3 Power Characteristics (2)
4.4 Frequency stability (2)
4.5 Phase Noise (2)
4.6 day frequency drift rate (3)
4.7 frequency reproducibility (3)
4.8 Frequency accuracy (3)
4.9 Frequency adjustment range (3)
5 General technical requirements (3)
5.1 Appearance (3)
5.2 Other requirements (3)
6 Control of measuring instruments (3)
6.1 Verification condition (3)
6.2 test items and test methods (4)
6.3 test results processing (12)
6.4 test cycle (12)
Appendix A test certificate (in-page) format (13)
Appendix B test results of notice (in-page) format (16)
Rubidium atomic frequency standard test procedures
1 Scope
The order applies to the rubidium atomic frequency standards (hereinafter referred to as rubidium frequency standard, rubidium atomic frequency GNSS including control
Standard) initial verification, subsequent verification and in-service inspection.
Note. GNSS is GlobalNavigationSateliteSystem the acronym for Global Navigation Satellite System.
2 Terms
2.1 Power characteristics (Warm-up)
After the rubidium frequency standard power-on lock, the lock period of time T (see the product manual predetermined value), the lock 1 hour, 2 hours
4 hours frequency accuracy, and the time required to reach a given frequency accuracy when.
2.2 frequency reproducibility (frequencyrepeatability)
Rubidium frequency standard boot after shutdown period of time T1, T2 after some time off, then boot phase after a period of time T3
Consistent with the extent of the relative frequency deviation and the mean average frequency deviation shutdown. T1, T3 rubidium frequency standard for the technical description
Book predetermined warm-up time, T2 is usually 24 hours.
3 Overview
Rubidium frequency standard is a passive atomic frequency standard, rubidium frequency standard within the oscillation frequency of the oscillator by a frequency synthesis techniques to produce a
Microwave excitation signal, rubidium isotope 87Rb atoms occur in the transition induced excitation signal, micro atomic transition
Wave signal and generating an error signal from the frequency discriminator role by servo-locked loop oscillator frequency, the frequency of the excitation signal lock
Given to the atomic transition frequency, to achieve highly stable and accurate crystal oscillator output frequency. The basic principle is shown in Fig.
Figure 1 rubidium atomic frequency standard works
GNSS control rubidium frequency standard is the use of global navigation satellite system signals and constantly adjust the output frequency rubidium frequency standards, so
Its frequency has a greater accuracy.
Rubidium frequency standard is widely used in the field of radio navigation and positioning, digital communications engineering, time and frequency measurement.
4 metering performance requirements
4.1 Output signal
4.1.1 frequency signal
Frequency. 1MHz, 5MHz, 10MHz.
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