Non-invasive method for measuring or monitoring the shielding effectiveness of equipment enclosures exposed to high electromagnetic power

摘要

Summary form only given. Shielding effectiveness (SE) of an equipment enclosure with leakage holes on the outer surface has been determined conventionally as the ratio of voltages measured with B-dot probes placed inside the enclosure and on the outside surface of the enclosure. A simple and practical method for measuring SE without the use of internal probes is presented. The method can be used to measure or monitor the SE of enclosures for equipment under development or installed equipment.