摘要
为了验证固态Ag/AgCl电极能否满足对微弱海洋电场信号的探测,在对Ag/AgCl电极自噪声产生机理分析的基础上,设计了Ag/AgCl电极自噪声的测量实验。通过实验,测量了不同海水电导率下一对Ag/AgCl电极的自噪声。测量结果表明:该电极能满足船舶电场的近场测量,且其自噪声随海水电导率的增大而减小,当海水电导率增大到一定程度时,该电极的自噪声变化起伏很小,可近似认为没有变化。所得结论对低噪声水下电场传感器的研制和实测水下电场数据的分析具有一定的借鉴意义。
In order to validate whether the Ag/AgCI electrode can be used to detect weak ocean elec- tric signals, a measurement experiment of Ag/AgCI electrode＇s self-noise was designed based on the analysis of the reason for Ag/AgC1 electrode＇s self-noise. A pair of Ag/AgCI electrode＇s self-noises in different seawater conductivities was measured in the laboratory. The results show that the electrode can be used to measure the ship＇s near electric field and its self-noise variation with seawater conduc- tivity. In addition, when the seawater conductivity increases to a certain value, the fluctuation of the electrode＇s self-noise is small or approximately considered to be zero. The conclusion drawn is significant for the design of an underwater electric field sensor with low self-noise and the analysis of the measured data of the underwater electric field.
出处
《海军工程大学学报》
CAS
北大核心
2011年第2期68-71,共4页
Journal of Naval University of Engineering
基金
国家部委基金资助项目(5144407105JB11)
