Laboratory Exercises to Accompany Chapters 1-3
These demonstrations and laboratory exercises illustrate concepts described in Electromagnetic Compatibility Course Notes.
Chapter 1: Examples of Electromagnetic Interference
It’s generally a good idea to bring something into the classroom that demonstrates various forms of electromagnetic interference. This could take many forms, but some common examples that are relatively easy to create include...
Exercise 1-1
Chapter 1: Ambient Signal and Noise Measurements
A spectrum analyzer can be used to demonstrate that electromagnetic noise is everywhere.
Exercise 1-2
Chapter 2: Measuring the Absolute Capacitance of an Object
Absolute capacitance and self-capacitance play an important role in EMC design and analysis. This demonstration (which could be assigned as a lab exercise) helps students to see that absolute capacitance is something very real and measurable.
Exercise 2-1
Chapter 2: Measuring the Inductance of a Wire Loop
This demonstration (which could be assigned as a lab exercise) helps students to get a feeling for how changes in the size, shape and wire thickness affect loop inductance.
Exercise 2-2
Chapter 2: Measuring Component Impedance with a Vector Network Analyzer
This demonstration helps students to get a feeling for the effect that parasitics have on the electrical behavior of components. It also demonstrates how to measure these parasitics with a VNA.
Exercise 2-3
Chapter 2: The Path of Least Impedance
One of the more fundamental concepts in EMC and signal integrity is anticipating where signal and noise currents flow. The exercise makes two important points: Currents return to their source, and currents take the path(s) of least impedance.
Exercise 2-4
Chapter 3: Common-Impedance Coupling in a Ribbon Cable
This demonstration (which could be assigned as a lab exercise) helps students to get a feeling for how changes in the size, shape and wire thickness affect loop inductance.
Exercise 3-1
Chapter 3: Electric-field Coupling in a Ribbon Cable
This demonstration helps students to get a feeling for the effect that parasitics have on the electrical behavior of components. It also demonstrates how to measure these parasitics with a VNA.
Exercise 3-2
Chapter 3: Magnetic-field Coupling in a Ribbon Cable
One of the more fundamental concepts in EMC and signal integrity is anticipating where signal and noise currents flow. The exercise makes two important points: Currents return to their source, and currents take the path(s) of least impedance.
Exercise 3-3