Characteristics and measurement of ripple in aircraft electric power systems

This paper describes the work accomplished at NADEVCEN (the Naval Air Development Center) to develop definition of frequency characteristic of ripple and to provide guidance in the voltage measurement of ripple. Factors influencing the unpredictable variations in ripple measurements are recognized and noted for guidance. Frequency characteristic data of ripple accumulated from various aircraft d-c power sources formed the basis for the developed limits recommended to be integrated into military specifications.