A Solution for Measuring the Dielectric Spectroscopy of Conductive Aqueous Solution

摘要：

A solution for measuring the dielectric spectroscopy of conductive aqueous solution at low and medium frequency is recommended here. The measuring system mainly consists of waveformer, four electrode probe, vector voltmeter and DSP as a controller. Electrode polarization causes serious problem in measuring the capacitance of conductive liquid when the frequency is below 200kHz. Four electrode probe is developed to solve the problem for the current is flow through the outer pair of electrodes, the inner pair of electrodes measures the voltage drop of the solution. The current flow through the inner pair of electrodes must be strictly controlled, for electrode polarization will become serious as the current increases.

关键词： liquid RF capacitance electrode polarization

作者: Xu Fei

作者单位: School of Electric, Shanghai Dianji University, Shanghai, China, 200240

会议类型: 国际会议

会议名称: 第八届国际测试技术研讨会(8th International Symposium on Test and Measurement)

会议地点: 重庆

会议语种:英文

页码: 2905-2908

在线出版日期: 2009-08-01（万方平台首次上网日期，不代表论文的发表时间）