Numerical simulation and experimental verification of underwater electric field excited by plate electrodes in a test pool

When underwater electric field sensors are used to probe marine magnetotelluric, the accuracy and reliability of its tests directly affect final exploration results. Underwater electric field sensor calibration is carried out in the test pool. The key technical indicators to evaluate the performance are: the uniformity of the underwater electric field activated in the test pool, the size of its uniform area, influence on uniformity by the number of sources and its positions excited by the system power electrode (voltage or current), influence on uniformity by the conductivity of different plate electrode and the test solution. Our tests provide effective solutions to these technical problems. © 2015, Science Press. All right reserved.