Electromagnetic Compatibility
(EMC 510)
Day One – Introduction, History, and Conducted Emissions
- Introduction, with EMI examples and demonstrations
- History, including some significant EMI incidents and results
- Conducted emissions, including examples, units of measurement, common methods of measurement, test variables, powerline source impedance representation, current probes, transfer impedance, common mode and differential mode.
- Time domain versus frequency domain
- Remedial methods with limitations, CM/DM (common mode/differential mode) filter design methodology, parasitic reactances and component limitations, isolation transformers, opto-isolators, and fiber optics.
Day Two – Radiated Emissions
- Radiated emissions, including theory, isotropic radiators, H (magnetic) fields, E (electric) fields, plane waves, wave impedance, antenna gain, antenna factors, near field, far field, common testing methods.
- Shielding theory, shield design, aperture leakage, shielding hardware with limitations.
- Cable shielding, shield transfer impedance, cable bundling, crosstalk and twisting.
- Differential mode and common mode radiation.
Day Three – Susceptibility Testing and Fixes
- Conducted susceptibility (AF [audio frequency], RF [radio frequency], and spike/impulse), transformer coupling, capacitive injection, bulk cable injection, remedial methods.
- Radiated susceptibility, including H field, E field, plane wave, remedial methods
- EMP (electromagnetic pulse) testing and remedies
- ESD (electrostatic discharge) testing and remedies
- Lightning testing and remedies
Day Four – Achieving Electromagnetic Compatibility
- EMC Goals
- Problem analysis, plans, tools, methods
- How to prevent EMI problems
- How to organize, analyze, solve EMI problems
- Remedy summary chart
- Troubleshooting tools, including current probes, voltage probes, LCR (inductance-capacitance-resistance) meters, RF sniffers and near field probes, RADHAZ (radiation hazard) probes, antennas.
- Troubleshooting techniques.
Day Five – Student EMI Workshop
- Problem descriptions from students
- Problem culling and student assignments to similar interest workgroups
- Group work to organize, analyze, plan and solve selected EMI problems
- Problem/solution presentations by student workgroups, with critiques by class and instructor
- Course summary
- Recommendations
Award of course completion certificates.
