CISPR 16-2-2:2010 specifies the methods of measurement of disturbance power using the absorbing clamp in the frequency range 30 MHz to 1 000 MHz. This second edition cancels and replaces the first edition (2003), its Amendment 1 (2004) and Amendment 2 (2005). It constitutes a technical revision. It includes the following significant technical changes with respect to the previous edition: provisions for the use of spectrum analyzers for compliance measurements (Annex D) and the use of FFT-based test instrumentation (Clauses 3, 6 and 8) are now included. CISPR 16-2-2:2010 has the status of a basic EMC publication in accordance with IEC Guide 107, Electromagnetic compatibility – Guide to the drafting of electromagnetic compatibility publications.<\/p>\n
| PDF Pages<\/th>\n | PDF Title<\/th>\n<\/tr>\n | ||||||
|---|---|---|---|---|---|---|---|
| 6<\/td>\n | English CONTENTS <\/td>\n<\/tr>\n | ||||||
| 9<\/td>\n | 1 Scope 2 Normative references 3 Terms and definitions <\/td>\n<\/tr>\n | ||||||
| 14<\/td>\n | 4 Types of disturbance to be measured 4.1 General 4.2 Types of disturbance 4.3 Detector functions <\/td>\n<\/tr>\n | ||||||
| 15<\/td>\n | 5 Connection of measuring equipment 5.1 General 5.2 Connection of ancillary equipment 6 General measurement requirements and conditions 6.1 General 6.2 Disturbance not produced by the equipment under test 6.3 Measurement of continuous disturbance <\/td>\n<\/tr>\n | ||||||
| 16<\/td>\n | 6.4 Operating conditions of the EUT 6.5 Interpretation of measuring results <\/td>\n<\/tr>\n | ||||||
| 17<\/td>\n | 6.6 Measurement times and scan rates for continuous disturbance <\/td>\n<\/tr>\n | ||||||
| 18<\/td>\n | Table 1 \u2013 Minimum measurement times for the four CISPR bands Table 2 \u2013 Minimum scan times for the three CISPR bands with peak and quasi-peak detectors <\/td>\n<\/tr>\n | ||||||
| 20<\/td>\n | Figure 1 \u2013 Measurement of a combination of a CW signal (\u201cNB\u201d) and an impulsive signal (\u201cBB\u201d) using multiple sweeps with maximum hold <\/td>\n<\/tr>\n | ||||||
| 21<\/td>\n | Figure 2 \u2013 Example of a timing analysis <\/td>\n<\/tr>\n | ||||||
| 22<\/td>\n | Figure 3 \u2013 A broadband spectrum measured with a stepped receiver Figure 4 \u2013 Intermittent narrowband disturbances measured using fast short repetitive sweeps with maximum hold function to obtain an overview of the emission spectrum <\/td>\n<\/tr>\n | ||||||
| 24<\/td>\n | Figure 5 \u2013 FFT scan in segments <\/td>\n<\/tr>\n | ||||||
| 25<\/td>\n | 7 Measurements using the absorbing clamp 7.1 Introduction to ACMM Figure 6 \u2013 Frequency resolution enhanced by FFT-based measuring instrument <\/td>\n<\/tr>\n | ||||||
| 26<\/td>\n | 7.2 Application of the absorbing clamp measurement method 7.3 Requirements for measurements instrumentation and test site <\/td>\n<\/tr>\n | ||||||
| 27<\/td>\n | Figure 7 \u2013 Schematic drawing of the absorbing clamp measurement method <\/td>\n<\/tr>\n | ||||||
| 28<\/td>\n | 7.4 Ambient requirements 7.5 EUT leads requirements <\/td>\n<\/tr>\n | ||||||
| 29<\/td>\n | 7.6 Test set-up requirements <\/td>\n<\/tr>\n | ||||||
| 30<\/td>\n | Figure 8 \u2013 Side view of the absorbing clamp measurement set-up for table top EUTs Figure 9 \u2013 Side view of the absorbing clamp measurement set-up for floor standing EUTs <\/td>\n<\/tr>\n | ||||||
| 31<\/td>\n | 7.7 Operating conditions of the EUT 7.8 Measurement procedure <\/td>\n<\/tr>\n | ||||||
| 32<\/td>\n | Table 3 \u2013 Sample scheme for an absorbing clamp measurement with an upper frequency bound of 300\u00a0MHz <\/td>\n<\/tr>\n | ||||||
| 33<\/td>\n | 7.9 Determination of disturbance power 7.10 Determination of the measurement uncertainty 7.11 Compliance criteria Table 4 \u2013 Sample scheme for an absorbing clamp measurement with an upper frequency bound of 1 000 MHz <\/td>\n<\/tr>\n | ||||||
| 34<\/td>\n | 8 Automated measurement of emissions 8.1 Precautions for automating measurements 8.2 Generic measurement procedure Figure 10 \u2013 Process for reduction in measurement time <\/td>\n<\/tr>\n | ||||||
| 35<\/td>\n | 8.3 Prescan measurements <\/td>\n<\/tr>\n | ||||||
| 36<\/td>\n | 8.4 Data reduction 8.5 Emission maximization and final measurement 8.6 Post processing and reporting 8.7 Emission measurement strategies with FFT-based measuring instruments <\/td>\n<\/tr>\n | ||||||
| 37<\/td>\n | Annex\u00a0A (informative) Historical background to the method of measurement of the interference power produced by electrical household and similar appliances in the VHF range (see 7.1) <\/td>\n<\/tr>\n | ||||||
| 40<\/td>\n | Annex\u00a0B (informative) Use of spectrum analyzers and scanning receivers (see Clause 6) <\/td>\n<\/tr>\n | ||||||
| 41<\/td>\n | Table B.1 \u2013 Minimum sweep time\/fastest scan rates <\/td>\n<\/tr>\n | ||||||
| 43<\/td>\n | Annex\u00a0C (informative) Scan rates and measurement times for use with the average detector <\/td>\n<\/tr>\n | ||||||
| 44<\/td>\n | Table C.1 \u2013 Pulse suppression factors and scan rates for a 100 Hz video bandwidth Table C.2 \u2013 Meter time constants and the corresponding video bandwidths and maximum scan rates <\/td>\n<\/tr>\n | ||||||
| 45<\/td>\n | Figure C.1 \u2013 Weighting function of a 10\u00a0ms pulse for peak (\u201cPK\u201d) and average detections with (\u201cCISPR AV\u201d) and without (\u201cAV\u201d) peak reading; meter time constant 160\u00a0ms Figure C.2 \u2013 Weighting functions of a 10\u00a0ms pulse for peak (\u201cPK\u201d) and average detections with (\u201cCISPR AV\u201d) and without (\u201cAV\u201d) peak reading; meter time constant 100\u00a0ms <\/td>\n<\/tr>\n | ||||||
| 46<\/td>\n | Figure C.3 \u2013 Example of weighting functions (of a 1\u00a0Hz pulse) for peak (\u201cPK\u201d) and average detections as a function of pulse width: meter time constant 160\u00a0ms Figure C.4 \u2013 Example of weighting functions (of a 1\u00a0Hz pulse) for peak (\u201cPK\u201d) and average detections as a function of pulse width: meter time constant 100\u00a0ms <\/td>\n<\/tr>\n | ||||||
| 47<\/td>\n | Annex\u00a0D (normative) Determination of suitability of spectrum analyzers for compliance tests Table D.1 \u2013 Maximum amplitude difference between peak and quasi-peak detected signals <\/td>\n<\/tr>\n | ||||||
| 48<\/td>\n | Bibliography <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":" Specification for radio disturbance and immunity measuring apparatus and methods – Methods of measurement of disturbances and immunity. Measurement of disturbance power<\/b><\/p>\n |