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Influence of AC field distribution on impedance of the conductivity cell

机译:交流电场分布对电导池阻抗的影响

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摘要

The AC impedance model of a liquid conductivity has been developed to assess the influence of electromagnetic vector potential. It has been proved that the field in a liquid conductor is quasi-static. Approximation error, even taken for very concentrated solutions (e.g. sea water), does not exceed 0.01 ppm. The calculation of resistance of the four-electrode cell is given with the account of Ampere's circuit law. Two types of errors are defined: DC error due to finite thickness of electrodes, and AC error due to presence of displacement currents when using an impedance model.
机译:已经开发出液体电导率的交流阻抗模型来评估电磁矢量电势的影响。已经证明,液体导体中的场是准静态的。即使对于浓度非常高的溶液(例如海水),其近似误差也不会超过0.01 ppm。考虑到安培的电路定律,给出了四电极电池的电阻的计算。定义了两种类型的误差:使用阻抗模型时,由于电极厚度有限而导致的直流误差,以及由于存在位移电流而导致的交流误差。

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