JJG 776-2014 English PDF

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JJG 776-2014: Verification Regulation for Microwave Radiation and Leakage Energy Measuring Instruments
Status: Valid

JJG 776: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
JJG 776-2014	349	Add to Cart	3 days	Verification Regulation for Microwave Radiation and Leakage Energy Measuring Instruments	Valid
JJG 776-1992	239	Add to Cart	2 days	Venification Regulation of Microwave Radiation and Leakage Energy Measuring Instrument	Obsolete

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Basic data

Standard ID: JJG 776-2014 (JJG776-2014)
Description (Translated English): Verification Regulation for Microwave Radiation and Leakage Energy Measuring Instruments
Sector / Industry: Metrology & Measurement Industry Standard
Classification of Chinese Standard: A58
Classification of International Standard: 17.240
Word Count Estimation: 15,157
Date of Issue: 1/23/2014
Date of Implementation: 7/23/2014
Older Standard (superseded by this standard): JJG 776-1992
Adopted Standard: IEEE Std 1309-2005, NEQ
Regulation (derived from): ?AQSIQ Announcement 2014 No. 10
Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine
Summary: This Standard applies to the operating frequency range of 915MHz-18GHz microwave radiation measuring instrument for the first time with the leak test, follow-up testing and use of checks.

JJG 776-2014: Verification Regulation for Microwave Radiation and Leakage Energy 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 Regulation for Microwave Radiation and Leakage Energy Measuring Instruments State verification procedures People's Republic of China Microwave radiation and leakage meter Issued on. 2014-01-23 2014-07-23 implementation The State Administration of Quality Supervision, Inspection and Quarantine released Microwave radiation and leakage meter Verification Regulation Instruments Replacing JJG 776-92 Focal point. the National Radio Technical Commission metering Drafting units. China Institute of Metrology This procedure commissioned the National Radio Technical Commission responsible for the interpretation of measurement The drafters of the regulations. Lida Bo (China Institute of Metrology) Tengjun Heng (China Institute of Metrology) Bo Li (China Institute of Metrology)

table of Contents

Introduction (Ⅱ) 1 Scope (1) 2 Overview (1) 3 metering performance requirements (1) 4 General Requirements (1) 5 control of measuring instruments (1) 5.1 test conditions (1) 5.2 test items and test methods (3) 5.3 test results processing (4) 5.4 test cycle (4) Appendix A test recording format (5) Appendix B test certificates/test results in the notice page and format (6)

Introduction

The regulations refer to international standards IEEEStd1309-2005, IEEEStandardforCalibrationofElec- tromagneticFieldSensorsandProbes, ExcludingAntennas, from9kHzto40GHz be prepared by. The standard is based on the current major international calibration laboratories electromagnetic field probe and sensor calibration. The procedures in place JJG 776-92 "Microwave radiation and leakage measurement instrument." The version with procedures and JJG 776-92 Than the power density of the device used in the device varies. In addition, the test frequency limit extended to 18GHz, for Verification also in the basic range of minor changes to the (0 ~ 1) mW/cm2 as the basic range of the test, if the subject Instrument range than 1mW/cm2, the increase (1 ~ 3) mW/cm2 power density of the measurement values. The previous versions of the release JJG 776 case. --- JJG 776-1992. Microwave radiation and leakage meter

1 Scope

This procedure is applied for the first time in the operating frequency range of 915MHz ~ 18GHz microwave radiation leakage and measuring instrument Test, test and subsequent use of checks.

2 Overview

Microwave radiation and leakage meter is used to measure radiation and microwave equipment microwave energy leaking to the space instruments. Microwave probe of the electromagnetic field sensitive element, can be directly converted microwave signal into a DC signal, the indicator value.

3 metering performance requirements

Frequency range. 915MHz ~ 18GHz; Power density measurement range. (0 ~ 3) mW/cm2; Power density measurement maximum permissible error. ± 2.75dB.

4 General technical requirements

It should be the subject instrument manufacturer, instrument name, instrument model, serial number and power requirements information. Microwave radiation And leakage measurement instrument control buttons, key switch, input and output ports should be clearly marked, and having a metering device A manufacturing license logo. There should be no prejudice to the subject instrument readings and affect the normal mechanical damage, control knobs and buttons should be able to work properly For the display to show, all kinds of signs should be clear and complete; pointer instrument gauge needles should bend, mechanical meter Zero can be adjusted freely.

5 control of measuring instruments

Controls include initial verification of measuring instruments, verification and subsequent use of checks. 5.1 verification Conditions 5.1.1 Environmental conditions 1) Ambient temperature. (23 ± 5) ℃. 2) Relative Humidity. 20% to 80%. 3) Power supply voltage and frequency. (220 ± 11) V, (50 ± 1) Hz. 4) The laboratory shall be no severe impact and vibration measurements of electromagnetic interference. 5.1.2 The test equipment 5.1.2.1 power density means the overall requirements of the standard Frequency range. 915MHz ~ 18GHz; The maximum power density value. ≥3mW/cm2; Standard power density Uncertainty. ≤1dB. ......

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