Real-time measurement of liquid conductivity under extreme fast conditions
A set of real-time in-situ measurement techniques for the conductivity of liquid media under extreme fast conditions is developed based on the symmetric difference principle,which mainly solves the problems of electrolysis of liquid media when measuring the conductivity of liquids under extreme fast conditions by the traditional measurement method and the difficulty of measuring the voltage signal by the impact polarization of the liquid media in the process of rapid impact.The real-time measurement technology in the sample testing process,the voltage at both ends does not exceed the electrode potential,and the measurement time is only a few microseconds,thus ensuring that the liquid medium is not affected by the strong electric field electrolysis,and through the two electrodes in the sample were measured by the difference of voltage signals,effectively eliminating the liquid medium by the rapid impact of the polarization of the interference,thereby improving the accuracy and reliability of the measurements in the extreme fast conditions.In this study,the voltage signals of the two electrodes in the sample were differentiated.The rapid impact test experiment on deionized water is taken as an example,and the results show that this measurement technique can accurately reflect the conductivity change history in the nanosecond time scale,which demonstrates a wide range of potential for scientific research and engineering applications.