JJF 1886-2020 English PDF

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JJF 1886-2020: Calibration Specification for Electric Field Probes
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
JJF 1886-2020	599	Add to Cart	4 days	Calibration Specification for Electric Field Probes	Valid

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Basic data

Standard ID: JJF 1886-2020 (JJF1886-2020)
Description (Translated English): Calibration Specification for Electric Field Probes
Sector / Industry: Metrology & Measurement Industry Standard
Classification of Chinese Standard: A56
Classification of International Standard: 17.220
Word Count Estimation: 26,299
Date of Issue: 2020-11-26
Date of Implementation: 2021-05-26
Quoted Standard: IEEE STD 1309-2013
Regulation (derived from): Announcement No. 57 (2020) of the State Administration for Market Regulation
Issuing agency(ies): State Administration for Market Regulation
Summary: This standard applies to the calibration of electric field probes in the frequency range of 10 MHz to 18 GHz.

JJF 1886-2020: Calibration Specification for Electric Field Probes

---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.
Calibration Specification for Electric Field Probes National Metrology Technical Specifications of the People's Republic of China Calibration specification for electric field probe 2020-11-26 release 2021-05-26 implementation Issued by the State Administration for Market Regulation Calibration specification for electric field probe FieldProbes Focal point: National Radio Metrology Technical Committee Main drafting unit: China Institute of Metrology Participating in the drafting unit: Jiangsu Institute of Metrology Fujian Institute of Metrology This specification entrusts the National Radio Measurement Technical Committee to be responsible for interpretation The main drafters of this specification: Li Dabo (China Institute of Metrology) Li Bo (China Institute of Metrology) Xie Ming (China Institute of Metrology) Participating drafters: Pinzhang Zhao (Jiangsu Institute of Metrology) Xiao Nali (Fujian Institute of Metrology)

table of Contents

Introduction (Ⅱ) 1 scope (1) 2 Reference documents (1) 3 Terms and definitions (1) 3:1 Micro-transverse electromagnetic wave chamber (1) 3:2 Gigahertz Transverse Electromagnetic Wave Chamber (1) 3:3 Site voltage standing wave ratio (1) 3:4 Isotropy (1) 4 Overview (1) 5 Measurement characteristics (2) 5:1 Electric field strength (2) 5:2 Isotropy (2) 6 Calibration conditions (2) 6:1 Environmental conditions (2) 6:2 Equipment for calibration (2) 7 Calibration items and calibration methods (3) 7:1 Calibration items (3) 7:2 Calibration method (4) 8 Calibration result expression (6) 9 Recheck interval (7) Appendix A Original Record Format (8) Appendix B: Internal page format of calibration certificate (10) Appendix C Calibration Uncertainty Evaluation Examples of Major Items (11)

Introduction

This specification is based on JJF 1071-2010 "Rules for the Compilation of National Metrology and Calibration Specifications" and JJF 1059:1-2012 "Evaluation and Expression of Measurement Uncertainty" was compiled: This specification refers to IEEEStd1309-20139kHz~40GHz electromagnetic field probe and sensor (antenna except External) Calibration (CalibrationofElectromagneticFieldSensorsandProbes(ExcludingAnten- nas)from9kHzto40GHz]: This specification is released for the first time: Calibration specification for electric field probe

1 Scope

This specification applies to the calibration of electric field probes in the frequency range of 10MHz to 18GHz:

2 Reference documents

IEEEStd1309-2013 9kHz~40GHz electromagnetic field probe and sensor (except antenna) calibration [CalibrationofElectromagneticFieldSensorsandProbes (ExcludingAntennas)from 9kHzto40GHz]: For dated reference documents, only the dated version applies to this specification; for undated references The latest version (including all amendments) is applicable to this specification:

3 Terms and definitions

3:1 Microtransverse electromagnetic wave chamber μtransverseelectromagneticmodecel Microtransverse electromagnetic wave chamber (μtransverseelectromagneticmodecel, hereinafter referred to as μTEMCel) It is a specially designed tiny transverse electromagnetic wave chamber with a symmetrical structure: The outer shell is two aluminum shells tightened with screws: The inner plate adopts brass plate: μTEMCel can still generate a calculable standard field strength at frequencies up to 1GHz, Used to calibrate a sufficiently small field probe that does not exceed the size of its uniform zone: 3:2 gigahertz transverse electromagnetic wave chamber gigahertztransverseelectromagneticmodecel Gigahertz transverse electromagnetic modecel (gigahertztransverseelectromagneticmodecel, hereinafter referred to as GTEMCel) consists of a tapered, asymmetrical rectangular coaxial line, similar to the input part of TEMCel Extended structure: Reasonably choose the cross-sectional size so that the characteristic impedance along the length of the cell remains at 50Ω: GTEM Cel has a larger operating space than TEMCel: 3:3 Site voltage standing wave ratio sitevoltagestandingwaveratio The site voltage standing wave ratio is in the microwave anechoic chamber, the electric field probe is placed at the reference point, along the same transmitting antenna The polarization and position of the electric field probe are changed in the direction of the main axis to produce the same standard field: The large dispersion determines the site voltage standing wave ratio: 3:4 Isotropy Isotropy characterizes the response of the field probe with the measurement angle, and the polarization and propagation direction of the incident field: Irrelevant: Isotropy is when the direction of the field probe is changed according to the calibration requirements, the highest indication value of the field probe under constant field strength is The ratio of the lowest indicated value, usually expressed in decibels:

4 overview

The electric field probe is usually composed of three parts: field sensor, detector and high resistance transmission line: figure 1: The field sensor is used to detect the field component of a certain position in space, and the detected signal can display the field strength after processing Numerical value: ......

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