BS EN 55016-2-2:2011
$189.07
Specification for radio disturbance and immunity measuring apparatus and methods – Methods of measurement of disturbances and immunity. Measurement of disturbance power
| Published By | Publication Date | Number of Pages |
| BSI | 2011 | 50 |
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.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 6 | English CONTENTS |
| 9 | 1 Scope 2 Normative references 3 Terms and definitions |
| 14 | 4 Types of disturbance to be measured 4.1 General 4.2 Types of disturbance 4.3 Detector functions |
| 15 | 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 |
| 16 | 6.4 Operating conditions of the EUT 6.5 Interpretation of measuring results |
| 17 | 6.6 Measurement times and scan rates for continuous disturbance |
| 18 | Table 1 – Minimum measurement times for the four CISPR bands Table 2 – Minimum scan times for the three CISPR bands with peak and quasi-peak detectors |
| 20 | Figure 1 – Measurement of a combination of a CW signal (“NB”) and an impulsive signal (“BB”) using multiple sweeps with maximum hold |
| 21 | Figure 2 – Example of a timing analysis |
| 22 | Figure 3 – A broadband spectrum measured with a stepped receiver Figure 4 – Intermittent narrowband disturbances measured using fast short repetitive sweeps with maximum hold function to obtain an overview of the emission spectrum |
| 24 | Figure 5 – FFT scan in segments |
| 25 | 7 Measurements using the absorbing clamp 7.1 Introduction to ACMM Figure 6 – Frequency resolution enhanced by FFT-based measuring instrument |
| 26 | 7.2 Application of the absorbing clamp measurement method 7.3 Requirements for measurements instrumentation and test site |
| 27 | Figure 7 – Schematic drawing of the absorbing clamp measurement method |
| 28 | 7.4 Ambient requirements 7.5 EUT leads requirements |
| 29 | 7.6 Test set-up requirements |
| 30 | Figure 8 – Side view of the absorbing clamp measurement set-up for table top EUTs Figure 9 – Side view of the absorbing clamp measurement set-up for floor standing EUTs |
| 31 | 7.7 Operating conditions of the EUT 7.8 Measurement procedure |
| 32 | Table 3 – Sample scheme for an absorbing clamp measurement with an upper frequency bound of 300 MHz |
| 33 | 7.9 Determination of disturbance power 7.10 Determination of the measurement uncertainty 7.11 Compliance criteria Table 4 – Sample scheme for an absorbing clamp measurement with an upper frequency bound of 1 000 MHz |
| 34 | 8 Automated measurement of emissions 8.1 Precautions for automating measurements 8.2 Generic measurement procedure Figure 10 – Process for reduction in measurement time |
| 35 | 8.3 Prescan measurements |
| 36 | 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 |
| 37 | Annex A (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) |
| 40 | Annex B (informative) Use of spectrum analyzers and scanning receivers (see Clause 6) |
| 41 | Table B.1 – Minimum sweep time/fastest scan rates |
| 43 | Annex C (informative) Scan rates and measurement times for use with the average detector |
| 44 | Table C.1 – Pulse suppression factors and scan rates for a 100 Hz video bandwidth Table C.2 – Meter time constants and the corresponding video bandwidths and maximum scan rates |
| 45 | Figure C.1 – Weighting function of a 10 ms pulse for peak (“PK”) and average detections with (“CISPR AV”) and without (“AV”) peak reading; meter time constant 160 ms Figure C.2 – Weighting functions of a 10 ms pulse for peak (“PK”) and average detections with (“CISPR AV”) and without (“AV”) peak reading; meter time constant 100 ms |
| 46 | Figure C.3 – Example of weighting functions (of a 1 Hz pulse) for peak (“PK”) and average detections as a function of pulse width: meter time constant 160 ms Figure C.4 – Example of weighting functions (of a 1 Hz pulse) for peak (“PK”) and average detections as a function of pulse width: meter time constant 100 ms |
| 47 | Annex D (normative) Determination of suitability of spectrum analyzers for compliance tests Table D.1 – Maximum amplitude difference between peak and quasi-peak detected signals |
| 48 | Bibliography |
