Shielding Specification Techniques and Measurement Methods for Aircraft

If properly implemented, electromagnetic shielding can protect aircraft electronics from harmful interference over a wide range of frequencies. The first step is to create a properly written set of specifications in measurable engineering units. If this is done, then the shielding system can be analyzed and measured in the laboratory and on board the aircraft. Using large aircraft as an example, this paper discusses shielding element specifications and the measurement methods that can be used to verify them. Illustrative examples of measured data are presented.