Development of definitions for voltage modulation characteristics in 380- to 420-cycle-per-second aircraft electric systems

Details axe given of the work accomplished at the Naval Air Development Center (NADEVCEN) to develop an adequate definition of voltage modulation in aircraft constant-frequency electric systems. Instrumentation was developed for the laboratory phase of the investigation. From the laboratory data and other commercial correlating data, a new and more complete definition of voltage modulation was developed. This definition is also recommended for integration into other military specifications involving aircraft a-c electric generating and regulating equipment.