| 四电极电压补偿测量质子交换膜的导电率 |
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| 引用本文： | 罗志平,潘牧,袁润章,林华幌. 四电极电压补偿测量质子交换膜的导电率[J]. 实验室研究与探索, 2004, 23(8): 22-25 |
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| 作者姓名： | 罗志平 潘牧 袁润章 林华幌 |
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| 作者单位： | 武汉理工大学,材料复合新技术国家重点实验室,湖北,武汉,43007 |
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| 基金项目： | 东风汽车公司燃料电池电动汽车项目资助. |
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| 摘 要： | 根据质子交换膜导电的特点,对其电导率的测试方法进行了研究,分析了通常采用的直流电、交流阻抗以及同轴探针测试方法在测量膜电导率时容易产生误差的原因。并设计了一种四电极电压补偿测试系统,能有效地避开电极极化以及仪器高频感应的影响,使测量结果精确可靠。
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| 关 键 词： | 质子交换膜 电导率 电压补偿 误差 |
| 文章编号： | 1006-7167(2004)08-0022-04 |
| 修稿时间： | 2003-07-15 |
The Conductivity Measure of Proton-Exchange Membrane with Four Electrode Voltage Compensation |
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| LUO Zhi-ping,PAN Mu,YUAN Run-zhang,LIN Hua-huang Wuhan Univ. of Technology,Wuhan ,China). The Conductivity Measure of Proton-Exchange Membrane with Four Electrode Voltage Compensation[J]. Laboratory Research and Exploration, 2004, 23(8): 22-25 |
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| Authors: | LUO Zhi-ping PAN Mu YUAN Run-zhang LIN Hua-huang Wuhan Univ. of Technology Wuhan China) |
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| Affiliation: | LUO Zhi-ping,PAN Mu,YUAN Run-zhang,LIN Hua-huang Wuhan Univ. of Technology,Wuhan 430070,China) |
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| Abstract: | The various principles of intermediaries to measure the conductivity of proton exchange membrane such as direct current measuring, ac impedance spectroscopy and open-ended coaxial probe method according to the characteristics of proton exchange membrane were shown and studied respectively. The reason of error resulting from the measuring methods was analyzed .A circuit testing system with four electrode voltage compensation was designed and described, which can effectively eliminate the influence of significant electrode polarization at low frequencies due to interfacial impedance and component of instrumental response at high frequencies. The measuring results of the conductivity of proton exchange membrane are not only precise but also reliable. |
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| Keywords: | proton exchange membrane conductivity voltage compensation error |
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