?According as the cathodic protection system on board results in an extremely low frequency(ELF) electric field,a marine electric field sensor based on virtual instruments is devised to complete the measurement of the ELF electric field.

• 针对舰船上阴极保护系统产生极低频轴频电场问题,设计了一种基于虚拟仪器的海洋电场传感器系统,实现了极低频轴频电场的测量。