GB/T 6113.202-2018Specification for radio disturbance and immunity measuring apparatus and methods -- Part 2-2: Methods of measurement of disturbances and immunity -- Measurement of disturbance power (English PDF)

Foreword

GB/T 6113 "Specifications for Radio Disturbance and Immunity Measurement Equipment and Measurement Methods" is the basic standard for electromagnetic compatibility, and is composed of the following four departments.

Sub-composition.

Part 1. Specification for radio disturbance and immunity measuring equipment

--- Part 1-1. Measurement equipment for radio disturbance and immunity measuring equipment;

--- Part 1-2. Coupling devices for measurement of conducted disturbances in radio disturbance and immunity measuring devices;

--- Part 1-3. Radio disturbance and immunity measuring equipment auxiliary equipment disturbance power;

--- Part 1-4. Radio disturbance and immunity measuring equipment - Radiation disturbance measuring antennas and test sites;

--- Part 1-5. Radio disturbance and immunity measuring equipment 30MHz~1000MHz antenna calibration test site;

---Part 1-6. EMC antenna calibration.

Part 2. Radio disturbance and immunity measurement methods

--- Part 2-1. Radio disturbance and immunity measurement methods - Conductive disturbance measurement;

--- Part 2-2. Radio disturbance and immunity measurement methods - Harassment power measurement;

--- Part 2-3. Radio disturbance and immunity measurement methods - Radiance disturbance measurement;

--- Part 2-4. Radio disturbance and immunity measurement methods - Immunity measurement;

--- Part 2-5. Field measurement of large equipment harassment emissions.

Part 3. Technical report on radio disturbance and immunity measurement

--- Part 3. Technical report on radio disturbance and immunity measurement.

Part 4. Uncertainty, statistics, and limit modeling

--- Part 4-1. Uncertainty, statistical and limit modeling Modeling EMC test uncertainty;

--- Part 4-2. Uncertainty, statistics and limits modeling uncertainty of equipment and facilities;

--- Part 4-3. Uncertainty, statistics and limits modeling statistical considerations for the determination of EMC compliance for batch products;

--- Part 4-4. Calculation models for statistical and limit values for uncertainty, statistics and limit modeling;

--- Part 4-5. Uncertainty, statistics and limits modeling conditions for the use of alternative test methods.

This part is part 2-2 of GB/T 6113.

This part is drafted in accordance with the rules given in GB/T 1.1-2009.

This part replaces GB/T 6113.202-2008 "Specifications for Radio Disturbance and Immunity Measurement Equipment and Measurement Methods Part 2-2.

Radio disturbance and immunity measurement method for disturbance power measurement, compared with GB/T 6113.202-2008, the main technical changes are as follows.

--- Part of the normative reference file has changed;

--- Added 8 terms (3.3 Measurement Auxiliary Equipment, 3.15 Measurement, 3.21 Test, 3.23.1 Weighted Disturbance Measurement, 3.23.2 Weighted Special

Sex, 3.23.3 weighted detector, 3.23.4 weighting factor and 3.25 weighting function), deleted a term (formerly 3.5 grounding parameters)

Test), some terms have been revised, and the term number has been updated compared to the previous version;

--- Chapter 6, Chapter 8 to increase the description of the emission measurement method of the FFT-based measuring instrument;

--- Added Appendix C "Scan Rate and Measurement Time Using Average Detector";

--- Added Appendix D "Validation of Applicability of Spectrum Analyzers for Compliance Testing".

This section uses the translation method equivalent to CISPR16-2-2.2010 "Radio Disturbance and Immunity Measurement Equipment and Measurement Method Specification

Part 2-2. Radio disturbance and immunity measurement method for disturbance power measurement.

The documents of our country that have a consistent correspondence with the international documents referenced in this part are as follows.

--- GB/T 6113.104-2016 Radio disturbance and immunity measuring equipment and measuring methods - Part 1-4. Radio

Harassment and immunity measuring equipment for radiation disturbance measurement antennas and test sites (CISPR16-1-4..2012, IDT);

--- GB/T 6113.402-2018 Radio disturbance and immunity measurement equipment and methods of measurement - Part 4-2. Uncertain

Degree, statistics, and limits model the uncertainty of equipment and facilities (CISPR16-4-2.2014, IDT).

This part is proposed and managed by the National Radio Interference Standardization Technical Committee (SAC/TC79).

This section drafted by. Shanghai Electric Apparatus Research Institute, China Electronic Technology Standardization Research Institute, Zhongfa Shangdong (Shanghai) testing technology

Limited company, Shanghai Sanji Electronic Industry Co., Ltd., Shaanxi Haitai Electronics Co., Ltd.

1 Scope

This part of GB/T 6113 specifies the method of measuring the disturbance power using an absorption clamp in the frequency range of 30 MHz to 1000 MHz.

Note. According to the IEC 107 guidelines, CISPR16-2-2 is the basic EMC standard used by the IEC product committee. As stated in the IEC 107 guidelines, products

The committee is responsible for determining the applicability of this EMC standard. CISPR and its subcommittees (corresponding to the domestic SAC/TC79 technical committee)

And its subcommittees) work with these product committees to assess the value of specific trials for their specific products. The above product committee corresponds

Domestic related product technical committee.

2 Normative references

The following documents are indispensable for the application of this document. For dated references, only dated versions apply to this article.

Pieces. For undated references, the latest edition (including all amendments) applies to this document.

GB/T 4365-2003 Electrotechnical terminology electromagnetic compatibility [IEC 60050 (161)..1990, IDT]

GB/T 6113.101-2016 Radio disturbance and immunity measuring equipment and measuring methods - Part 1-1. Radio disturbance

And immunity measuring equipment measuring equipment (CISPR16-1-1..2010, IDT)

GB/T 6113.103-2008 - Radio disturbance and immunity measuring equipment and measuring methods - Part 1-3. Radio disturbance

And immunity measurement equipment auxiliary equipment disturbance power (CISPR16-1-3.2004, IDT)

CISPR16-1-4 Radio disturbance and immunity measuring equipment and methods of measurement - Part 1-4. Radio disturbance and immunity

Radiation disturbance measurement antenna and test site for measuring equipment (Specificationforradiodisturbanceandimmunity

measuringapparatusandmethods-Part 1-4.Radiodisturbanceandimmunitymeasuringapparatus-

Antennasandtestsitesforradiateddisturbancemeasurements)

CISPR16-4-2 Specification for Radioacoustic and Immunity Measurement Equipment and Measurement Methods - Part 4-2. Uncertainty, Statistics and

Limit modeling to measure the uncertainty of equipment and facilities (Specificationforradiodisturbanceandimmunitymeasuring

apparatusandmethods-Part 4-2. Uncertainties, statisticsandlimitmodeling-Measurementinstru-

Mentuncertainty)

3 Terms and definitions

The following terms and definitions as defined in GB/T 4365-2003 apply to this document. For ease of use, the following is repeated

Certain terms and definitions in GB/T 4365-2003.

3.1

Absorption clamp measurement method absorbingclampmeasurementmethod; ACMM

The measurement method of the disturbance power of the device under test (EUT) is measured by an absorbing clamp device, and the lead of the EUT is embedded in the absorbing clamp during the measurement.

3.2

Absorbent clamp test site absorbingclamptestsite; ACTS

The test site for disturbance power measurement can be effectively implemented using the Absorbing Clamp Measurement Method (ACMM).

3.3

Measuring aid ancilaryequipment

A switching device connected to a measuring receiver or signal generator for the transmission of disturbance signals between the EUT and the measuring or test equipment (eg

Such as. current probes, voltage probes and artificial networks).

3.4

Absorption clamp factor clampfactor; CF

Fc

The ratio of the disturbance power of the EUT to the received voltage at the output of the absorbing clamp.

Note. The absorption clamp factor is the conversion factor of the absorption clamp.

3.5

Absorber clamp reference point clampreferencepoint; CRP

Absorber external marking associated with the longitudinal position of the front end of the current transformer in the absorbing clamp for calibration of the absorbing clamp during testing

horizontal position.

3.6

Coaxial cable coaxialcable

a cable containing one or more coaxial cables, typically used for the matching of auxiliary equipment to measuring equipment or (test) signal generators,

Provides a specified characteristic impedance and the maximum allowable cable transfer impedance.

3.7

Common mode (asymmetric) disturbance voltage commonmode(asymmetrical) disturbancevoltage

When the cable is a double wire, it is the RF voltage between the grounding intermediate point and the reference ground; when the cable is bundled, it is at the end of the specified

The effective RF disturbance voltage of the entire beam relative to the reference ground measured by the current clamp (current transformer) under the condition of the terminal impedance (asymmetric electricity)

Pressed vector and).

[GB/T 4365-2003, definition 161-04-09, modified].

3.8

Common mode current commonmodecurrent

Specifies the sum of the current vectors on two or more wires through which the Geometry cross section passes.

3.9

Continuous harassment of continuousdisturbance

A radio frequency disturbance that exhibits a duration of more than.200 ms at the IF output of the receiver, which enables operation in a quasi-peak detection mode

The deflection produced by the measuring receiver head does not decrease immediately.

[GB/T 4365-2003, definition 161-02-11, modified]

3.10

Intermittent harassment discontinuousdisturbance

For countable clicks, the disturbance at the IF output of the measuring receiver is less than.200ms, which makes the work

The receiver head of the quasi-peak detection method produces a brief deflection.

Note. For impulse pulse disturbance, see GB/T 4365-2003, 161-02-08.

3.11

(electromagnetic) emission (electromagnetic)

The phenomenon of electromagnetic energy emitted from the source.

[GB/T 4365-2003, definition 161-01-08]

3.12

(harassment source) emission limit emissionlimit(fromadisturbingsource)

The maximum emission level of the specified electromagnetic disturbance source.

[GB/T 4365-2003, definition 161-03-12]

3.13

Test equipment equipmentundertest; EUT

Equipment (apparatus, appliance, and system) that is subject to electromagnetic compatibility (EMC) compliance testing.

3.14

Test line leadundertest; LUT

A lead that is connected to the EUT and subjected to an emission or immunity test.

Note. Typically, the EUT is connected to a power source or other network or to an auxiliary device by one or more leads. These leads are usually cables, such as power cables,

Coaxial cable, data bus cable, etc.

3.15

Measurement measurement

The process of obtaining one or more magnitudes and assigning them reasonably through experiments.

[ISO /IEC Guide 99.2007, Definition 2.1]

3.16

Measurement, sweep and scan time

3.16.1

Measuring time measurementtime

Tm

The continuous time (some areas also known as dwell time) that make the measurement of a single frequency point effective.

--- For the peak detector, the effective time at which the signal envelope maximum is detected;

--- For the quasi-peak detector, the effective time of the weighted envelope maximum is measured;

--- For the average detector, determine the effective time of the signal envelope average;

--- For the rms detector, determine the effective time of the signal envelope rms.

3.16.2

Observation time observationtime

To

In the case of multiple scans, the sum of the time Tm is measured at a certain frequency point. If n is the number of scans or sweeps, then To = n x Tm.

3.16.3

Sweep scan

The frequency within a given frequency span varies continuously or stepwise.

3.16.4

Span span

deltaf

The difference between the scan or sweep start and stop frequencies.

3.16.5

Scan sweep

Continuous frequency variation over a given frequency span.

3.16.6

Scan rate sweeprate

Sweep rate scanrate

The scan or sweep span divided by the time of the sweep or sweep.

3.16.7

Scan time sweeptime

Sweep time scantime

Ts

The time from one start to the end of a scan or sweep.

3.16.8

Total observation time totalobservationtime

Ttot

The effective time of spectrum observation (single or multiple scans). If c is the number of frequency bands scanned or scanned, then Ttot = c x n x Tm.

3.17

Measuring receiver measuringreceiver

Measuring instruments with or without preselectors that meet the requirements of GB/T 6113.101-2016, for example, tuning voltmeters, EMI reception

Machine, spectrum analyzer or measurement device based on Fast Fourier Transform (FFT).

Note. For more detailed information, see Appendix I of GB/T 6113.101-2016.

3.18

Number of scans per unit time (for example. per second) numberofsweepspertimeunit(egpersecond)

Ns

The reciprocal of the sum of the single scan time and the return time, ie 1/(scan time return time).

3.19

Product (class) EMC standard productpublication

A standard established for EMC's specific requirements for products or product categories.

3.20

Slide reference point slidereferencepoint; SRP

An end of the absorption clamp slide, the position of the EUT, which is used in the measurement procedure to determine the EUT to the absorption clamp reference point

The horizontal distance between (CRP).

3.21

Test test

Technical operation to determine one or more characteristics of a product, process, or service in accordance with a prescribed procedure.

Note. Testing is the measurement or classification of a product's characteristics or properties under a range of environmental and operating conditions and/or requirements.

[IEC 60050-151.2001,151-16-13][5]

3.22

Test layout testconfiguration

The EUT measurement arrangement specified for measuring the emission level.

3.23

Weighting (eg, for impulse harassment) weighting (ofe.g.impulsivedisturbance)

Converting the peak detection impulse pulse voltage level to an indication related to the pulse repetition rate (PRF) (in most cases decreasing),

To correspond to the impact of interference on radio reception.

Note 1. For analog receivers, the measurement results reflect a subjective assessment of the degree of psychological aversion (discomfort) in human psychology (auditory or visual, right

The degree of misunderstanding of the content expressed cannot usually be measured by a certain value).

Note 2. For digital receivers, the effect of the interference presented is an objective quantity, which can be specified as a critical bit error rate (BER) or ratio.

Special error probability (BEP) (even if there is perfect error correction capability, error occurs) or choose a reproducible object that reflects objective evaluation.

Rationality.

3.23.1

Weighted disturbance measurement weighteddisturbancemeasurement

Harassment measurements using a weighted detector.

3.23.2

Weighted characteristic weightingcharacteristic

Peak voltage level as a function of pulse repetition rate with a constant influence on a particular radio communication system, ie harassment through radio

The communication system itself is weighted.

3.23.3

Weighted detector weightingdetector

A detector with a contracted weighting function.

3.23.4

Weighting factor

The value of the weighting function relative to the reference pulse repetition rate or relative to the peak.

Note. The weighting factor is expressed in decibels (dB).

3.23.5

Weighting function weightingfunction

Weighted curve weightingcurve

When the measurement receiver with the weighted detector indicates that the (output) level is constant, its input peak voltage level and pulse repetition rate

The relationship is measured by the receiver's response to repeated pulses.

4 Types of harassment being tested

5 Connection of measuring equipment

6 General requirements and conditions for measurement