The Validity of Static EDL Theory as Applied to Streaming Potential of Pressure-Driven Flow in Parallel-Plate Microchannels

Fuzhi Lu, D. Kwok
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引用次数: 1

Abstract

A new method of testing the validity of the static EDL theory as applied to streaming potential was developed. By measuring the electrical potential downstream along the channel surface, one may determine the validity of the static EDL theory with the introduction of a flow field. Experimental results suggest that the direct applying of the static EDL theory to streaming potential measurement may cause great discrepancy which was usually to be ascribed to the surface conductance.
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静态EDL理论在平行板微通道压力驱动流场中的有效性
提出了一种检验静态EDL理论在流势分析中的有效性的新方法。通过测量沿通道表面下游的电势,可以确定引入流场的静态EDL理论的有效性。实验结果表明,将静态EDL理论直接应用于流电位测量可能会产生很大的误差,而这种误差通常归因于表面电导。
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