海洋低频电场传感器敏感电极材料的选择

选择了9种不同的电极材料,根据海洋环境下低频、极低频电场的自身特点,通过直流电阻、交流阻抗、电极对极差漂移3个方面对电极性能进行了测试,研究了其用于海洋环境低频电场弱信号探测的可行性,筛选出了适合海洋环境低频电场测量的电极材料,并从理论上进行了解释.结果表明,固态Ag/AgCl电极的直流电阻和交流阻抗均较小,且其极差漂移可控制在μV级,具有优良的极化效应和较低的极差漂移,是海洋环境低频电场探测的敏感电极材料.

Choice of electrode material for detecting low frequency electric field in sea water

Nine types of electrodes were selected.DC resistances,AC impedances and difference vol-tages of the electrode pairs were measured based on the characteristics of the low and extra low frequencies electric fields in sea water.The feasibilities of these electrodes used for detecting these signals were studied and explained theoretically.The results show that all-solid Ag/AgCl electrode is the most sensitive electrode with its very low DC resistance and AC impedances and the difference voltage can be controlle...