CdSINGEGNERIA DELLE TELECOMUNICAZIONI
Codice569II
CFU6
PeriodoAnnuale
LinguaItaliano
The student who successfully completes the course will have the ability to identify most of the interference and disturbance sources arising in modern electronic and ICT systems; at the same time he will learn the mitigation techniques commonly employed to reducing the malfunctioning. He will also learn the measurement techniques and procedures to prevent undesired electromagnetic exposition of professional workers and civilians for a correct continuous monitoring and for compliance of the systems with the exposure level regulations.
The student will be assessed on his/her demonstrated ability to discuss the main course contents using the appropriate terminology. Moreover, during the oral exam, the student must demonstrate the ability to approach some circumscribed e.m. compatibility problems, and organise an effective exposition of the results.
Methods:
- Final oral exam
Delivery: face to face
Learning activities:
- attending lectures
- participation in discussions
- Laboratory work
- Practical
Attendance: Advised
Teaching methods:
- Lectures
- laboratory
INTRODUCTION:The concepts of electromagnetic interference (EMI) and electromagnetic compatibility (EMC). Conditions of EMI and EMC, immunity and susceptibility. INTERFERENCE SOURCES: conducted and radiated interference. Characterization of interference sources, both radiated and conducted. Pulsed interference: electrostatic discharge, lightning, nuclear pulse. ELECTROMAGNETIC SHIELDING: Continuous metallic screen. Shielding effectiveness. Thin and multilayered screens. Effect of apertures on metallic screens. Junctions and gaskets. Ferromagnetic screens. REGULATIONS AND MEASUREMENTS: Civilian and military regulations. Measurement standards. Radiated and conducted interference measurements. Sensors for electromagnetic field measurement and monitoring. Regulations for safe human exposure level. CROSSTALK: Multiconductor transmission lines. Crosstalk reduction: shielded cables and twisted lines. Grounding.
• Notes available in .pdf format, provided by teacher • C.R. Paul, Introduction to Electromagnetic Compatibility, John Wiley & Sons, 1992.