A Resource for Learning about Electromagnetic Compatibility

Welcome to LearnEMC, a resource for anyone who wants to understand electromagnetic compatibility. Whether you're a student just discovering EMC or a working engineer tackling a tough design problem, we're here to help you learn.

Laboratory Exercises to Accompany Chapters 10-12

These demonstrations and laboratory exercises illustrate concepts described in Electromagnetic Compatibility Course Notes


magnetic shielding test fixture
Chapter 10: Low-frequency Magnetic-field Shielding

At low frequencies, magnetic field shielding materials redirect the field using magnetic materials.
Demonstration: Low-frequency Magnetic-field Shielding


Chapter 10: High-frequency Magnetic-field Shielding

At high frequencies, magnetic fields can be redirected by the eddy currents in conductive materials.
Demonstration: High-frequency Magnetic-field Shielding


Chapter 10: Electric-field Shielding

Conductive materials can stop electric fields at virtually any frequency. Unlike magnetic-field shields, how and where an electric-field shield is grounded can be very important. 
Demonstration: Electric-field Shielding



two common-mode chokes mounted on a circuit board
Chapter 11: Visual Inspection of Circuit Boards

What can you say about a board's chances of meeting its EMC requirements just by looking at it?
Demonstration: Visual Inspection of Circuit Boards


Chapter 11: Pre-compliance Measurements

What can we learn about a board's chances of meeting its EMC requirements based on near-field measurements?
Demonstration: Pre-compliance Emissions Measurements


Chapter 12: Visual Inspection of a Commercially Available Electronic Product

What can you say about a product's chances of meeting its EMC requirements just by looking at it?
Demonstration: Visual Inspection of Commercial Products


 
"... a comprehensive course in EMC from fundamentals to advanced topics presented in a rigorous, but relatable manner."  
Electromagnetic Compatibility Course Notes Cover