ABSTRACT
This chapter briefly discusses how to implement two crucial electromagnetic compatibility strategies: grounding and shielding. It provides a general introduction to electromagnetic interference problems in today’s industrial electronic systems. The primary emphasis is on practical insights and ideas gained in dealing with numerous industrial control problems. Emissions refer to electric energy originating within equipment that can interfere with other equipment. The prime concern of this threat is jamming nearby television receivers, which is the basis for the now mandatory European Union emissions regulations. A good ground must have a low enough impedance to minimize voltage drop in the ground system, and must provide the preferred path for current flow. The key to success is maintaining that low impedance over the entire frequency range of interest.
