研究了使用Ｋｅｌｖｉｎ探头参比电极技术测定薄液层下金属电化学行为的方法。为改善Ｋｅｌｖｉｎ探头装置的测试性能，采取了若干提高信噪比的措施，如采用压电陶瓷振动驱动器和测量交流信号的电压成分等。实验结果表明，改进的这套装置可用于测试极薄液层下的金属的电极电位、电位随时间的变化、腐蚀电位分布及极化曲线等稳态电化学行为，是研究大气腐蚀过程的有效工具之一。
Using Kelvin Probe as reference electrode, a study was made on electrochemical measurements onelectrode covered with very thin electrolyte layer. Two experimental improvements including the application of piezo-electric ceramics sheet as the actuator and the measurement of the voltage component of theA.C. signal have been adopted and resulted in satisfactory performance with high potential resolution andlow signal to noise ratio.The electrode potential measured with this device exhibits a linear corrljlation tothat measured with conventional reference electrode. This arrangement can be employed with confidencefor various steady-state electrochemical measurements of metals under thin electrolyte layer.
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