Mesures CEM Aéro & Militaires

Objectifs

Les objectifs de la formation Mesures CEM Aéro & Militaires :

Mettre en oeuvre des mesures normalisées dans le domaine aéro/militaire en comprenant les méthodes et les difficultés liées aux appareils de mesure, à l'installation et à la reproductibilité.

Le but de cette formation est de :

Programme

1/ Introduction

EMC analysis method

EMC organisation of a project

EMC regulatory requirements

EMC standards

Organisation of EMC tests

2/ Reminders - Coupling

Time-frequency relationship

Frequency representation

EMC behaviour of components

Common mode and differential mode

The six modes of coupling

3/ Measurement and investigation equipment Principle of spectral analysis EMC detectors RSIL Current clamp Current clamp construction>Near-field probes

Making investigation probes

MC/MD separator

4/ Solutions

The different LF and HF filter components

Implementing filtersof filters

The main surge arresters

The reducing effect of a shielded cable

Shielding of equipment

Influence of openings in a shield

5/ Conducted emissions

Test configuration: civil and military standards

Origin of differential mode and common mode

Differential mode and common mode filtering

Use of MC/MD separators

Practical demonstration: Highlighting parameters

Practical demonstration: Influence of filtering elements

6/ Radiated emissions Spectrum of a trapezoidal train Radiated spectrum in MC and MD Identification of radiated spectra>Sources of radiation

Radiation reduction

Evaluation of radiated emissions

Use of current clamps in radiated emissions

Practical demonstrations

7/ RF immunity during operation

Pulse shapes

IEC / EN 61000-4-4 standard

IEC / EN 61000-4-6 standard

Conducted immunity tools

Additive and subtractive methods

Practical work: equipment tuning

Conducted immunity tuning guide

8/ Radiated immunity

IEC / EN 61000-4-3 standard

Immunity to walkie-talkies

Shielding resonance

Radiated immunity development guide

9/ Conclusion

General tuning method

Pre-qualification tools: summary

Form