EMC design in civil and military aeronautics

Objectives

• Understand the nature of EMC phenomena in harsh environments.
• Inventory EMC couplings.
• State the rules of the art in electronics design.

Who should attend

Engineers and technicians in the aeronautics and defence sectors responsible for the design and integration of electronic systems.

Prerequisites

Hold engineering degree or a diploma in technician (or equivalent) in the following fields: electrical/electronic/Electrotechnical

Technical and teaching resources

Presentation aids for lectures, case, demonstration models, test equipment for practical training courses

Sanction of training

Certificate of completion

Methods of assessment

QUIZ evaluation questionnaire

Presentation

Electronic equipment used in aeronautics and defence must take EMC constraints into account during the design and integration phases.

This course provides a comprehensive, structured overview of the EMC knowledge that is essential today, through familiarisation with the problems posed between the immunity of a complex system and its electromagnetic environment.

Numerous practical laboratory applications are carried out throughout the course, and students are also given the opportunity to bring in equipment that they would like to have analysed/measured as part of the practical work.

Program

1 - Learn the fundamentals of EMC in harsh environments

Low-frequency and high-frequency disturbances, sources of disturbance, order of magnitude, propagation and radiation of fields - Coupling by common impedance, coupling by differential mode, coupling by common mode, cable-to-cable coupling (crosstalk), coupling synthesis - Impedance of conductors in order of importance: round wire, flat conductor, braid, plane, etc.

2 - Understanding EMC design rules

Understanding couplings applied to electronic boards - Defining the best choice of board format - Entering electronic diagrams and subcontracting - Designing filtering and decoupling - Defining protection against the indirect effects of lightning - Mastering the routing of electronic boards (multi-layer) - Defining equipotential bonding of electronic boards - Managing different grounds (case bonding, electronics, etc.) - Developing shielding and mechanical systems

3 - Synthesize design rules and choose solutions

Distinguish between electronic board couplings - Master electronic board routing - Set up your filtering - Define mechanics with respect to EMC constraints

4 - Carry out practical laboratory work

Critical analysis of typical equipment - EMC routing techniques on workstations - Highlighting the radiation from electronic cards - Highlighting and reducing crosstalk in circuits - Circulation of HF and LF currents - Importance of earthing; equipotentiality, impedance of conductors - Coupling in cables - Choice of filter according to the type of disturbance - Effectiveness of the filter according to its installation.