One of the methods of observing ESD around electronic equipments

It is very difficult to discriminate between interferences caused by ESD (emanated electromagnetic impulse) and others on electronic equipments. In this paper, we show the method to discriminate between them and to observe ESD, with giving details of "ESD Impulse Monitor" and practical use of it. We could find the origin of ESD with the measurement equipment and performed countermeasure to prevent it. As a result, the number of equipment failures was reduced 26% in comparison to before countermeasure.