Technique for Research Spurious Electromagnetic Emission from Electronic Means

The formation of spurious electromagnetic emission from electronic means is associated with a change in current in electrical circuits when switching elements. The research of these emissions is important for solving the following problems: electromagnetic compatibility; information security; biological electromagnetic compatibility. The main method for researching spurious electromagnetic emission from electronic means is an experimental approach. But this equipment has a high price and is available from a limited number of organizations. The purpose of this work is to develop a theoretical-experimental technique for research spurious electromagnetic emission from electronic means at the place of their operation. In accordance with the technique for research spurious electromagnetic emission from an electronic means is equal to the difference between the electric field strength in the off and on state. Examples of research spurious electromagnetic emission from the personal computers are presented.