An Introduction to Electromagnetic Compatibility

By definition, Electromagnetic Compatibility (EMC) describes the ability of a system, a piece of equipment, or some other electrical device that utilizes electromagnetic energy, to operate in its intended environment without suffering an unacceptable degradation in its performance, or negatively impacting the ability of another device to perform its intended function.

This paper is intended to provide the reader with a basic understanding of Electromagnetic Interference and Compatibility, the various standards and specifications associated with being compliant, the types of testing available to help the engineer quantify the performance of his equipment and some of the basic approaches utilized to help him meet his requirements.