JJF 1703-2018 English PDF

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JJF 1703-2018: Calibration Specification for Resonant Type Wavelength Meters
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Basic data

Standard ID: JJF 1703-2018 (JJF1703-2018)
Description (Translated English): Calibration Specification for Resonant Type Wavelength Meters
Sector / Industry: Metrology & Measurement Industry Standard
Classification of Chinese Standard: A56
Word Count Estimation: 16,129
Date of Issue: 2018-02-27
Date of Implementation: 2018-08-27
Older Standard (superseded by this standard): JJG 348-1984
Quoted Standard: JJF 1059.1-2012
Regulation (derived from): AQSIQ Announcement No. 26 of 2018
Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine

JJF 1703-2018: Calibration Specification for Resonant Type Wavelength Meters

---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.
(Resonant Wavelength Meter Calibration Specifications) National Metrology Technical Specification of the People's Republic Resonant wavelength meter calibration specification Published on.2018-02-27 2018-08-27 implementation The General Administration of Quality Supervision, Inspection and Quarantine issued Resonant wavelength meter calibration specification Replace JJG348-1984 Focal Point. National Time Frequency Measurement Technical Committee Main drafting unit. China Testing Technology Research Institute Shaanxi Changling Electronic Technology Co., Ltd. Participated in the drafting unit. Shanghai Yamei Microwave Instrument Factory Chongqing Institute of Metrology and Quality Inspection This specification entrusts the National Time Frequency Measurement Technical Committee to explain The main drafters of this specification. Guo Chunmei (China Testing Technology Research Institute) Wang Jing (Shaanxi Changling Electronic Technology Co., Ltd.) Participate in the drafters. Zhang Guoliang (Shanghai Yamei Microwave Instrument Factory) Luo Hao (Chongqing Institute of Metrology and Quality Inspection)

table of Contents

Introduction (II) 1 Scope (1) 2 References (1) 3 terms (1) 3.1 Calibration increment (calibration scale) (1) 3.2 Resonant energy absorption (resonance energy drooping) (1) 4 Overview (1) 5 Measurement characteristics (1) 5.1 Frequency measurement range (1) 5.2 Frequency measurement maximum allowable error (1) 5.3 Resonance Energy Absorption (1) 5.4 standing wave ratio (1) 5.5 Calibration increment (2) 6 Calibration conditions (2) 6.1 Environmental conditions (2) 6.2 Measurement standards and other equipment (2) 7 Calibration items and calibration methods (2) 7.1 Calibration Project (2) 7.2 Calibration method (3) 8 calibration result expression (6) 9 re-study interval (6) Appendix A Calibration Original Record Format (7) Appendix B Calibration Certificate Page Format (8) Appendix C Example of Uncertainty Evaluation of Measurement Results (9)

Introduction

This specification is based on JJF 1071-2010 “Rules for the Preparation of National Metrology Calibration Specifications”. This specification replaces JJG348-1984 "Resonance Wavelength Meter Test Verification Regulations". This specification is relative to the original procedure The main technical changes are as follows. --- Increased frequency measurement range; --- Re-determined the content of the measurement characteristics; --- Adopt new measurement methods (combined signal generators, spectrum analyzers, network analyzers, etc. as measurement standards); --- Improve and refine the calibration method of frequency measurement range, frequency measurement error and other items; --- An appendix gives an example of the uncertainty of measurement results. The previous versions of this specification are. JJG348-1984 (Trial). Resonant wavelength meter calibration specification

1 Scope

This specification applies to resonant wavelength meters with a frequency range of 0.3 GHz to 40 GHz (also known as resonant frequency meters, Calibration of a coaxial direct reading frequency meter).

2 reference files

This specification refers to the following documents. JJF 1059.1-2012 Measurement Uncertainty Evaluation and Representation For dated references, only dated versions apply to this specification; undated quotations The latest version (including all amendments) applies to this specification.

3 terms

3.1 Calibration increment (calibration scale) calibrationincrements The calibration increment is also called the calibration scale and refers to the frequency value of the minimum interval of the wavelength meter scale. 3.2 Resonance energy absorption (resonance energy droop) dipatresonance In the microwave measurement system, when the wavelength meter resonator tuning device is tuned from the detuning to the frequency to be measured, the transmission end The mouth energy is in a minimum state, that is, the power value drops to a minimum.

4 Overview

Resonant wavelength meter, which is a passive frequency measurer, is a special design that uses the cavity method to measure microwave frequency. Preparation, usually used in microwave devices or microwave systems to measure the signal frequency, according to its intracavity resonance in the microwave system The response of the external circuit is divided into pass and absorption. The pass mode is the resonance point of the position of the signal energy peak. The absorption type is the resonance point of the position of the signal energy valley. In practical applications, the absorption wavelength meter is mostly used for measurement. equipment. Resonant wavelength meter (resonant frequency meter, coaxial direct reading frequency meter) is mainly used for national defense, military, communications, In the medical and other fields, there are also a large number of applications in research and teaching.

5 Measurement characteristics

5.1 Frequency measurement range 0.3GHz~40GHz. 5.2 Frequency measurement maximum allowable error ± (0.5% to 0.1%). 5.3 Resonance energy absorption ≥10%. 5.4 standing wave ratio ......

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