The Measurement Method Of Ship's Electric Field

In this paper, the model of ship's electric field is created based on the array of point current sources, which has the practical physical meanings. And the effectiveness is certificated by the numerical test. According to the main characters of ship's electric field, the data processing methods is investigates, which could efficiently pick up the time-domain and frequency-domain characters.The basic parameters of the performance of electric field sensors are discussed. And the methods of measuring the noise, the calibration coefficient, and the signal source's load characteristic are explored.It brings forward the methods of measuring the electric field of real ship in the sea. The influence of the interface between sea and seabed on the space character of the ship's electric field is analyzed. Through measuring the ship's electric field at sea, the characteristics of ship's electric potential and intensity are achieved, which prove the methods and the model.