| 大功率微波作用下溶液复介电系数测量新方法 |
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| 引用本文： | 胡荣骅,杨晓庆,黄卡玛.大功率微波作用下溶液复介电系数测量新方法[J].四川大学学报(自然科学版),2007,44(3):583-586. |
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| 作者姓名： | 胡荣骅 杨晓庆 黄卡玛 |
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| 作者单位： | 四川大学电子信息学院,成都,610064 |
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| 基金项目： | 国家自然科学基金;国家自然科学基金 |
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| 摘 要： | 化学反应过程中的等效复介电系数测量是微波化学研究的重要内容.传统的复介电系数测量方法一般都需要测量反射系数的相位.而在大功率微波条件下，很难做到对反射系数相位的准确测量.为解决该问题，基于天线模型提出了一种新的测量方法.并对氯化钠水溶液和甲醇/乙醇混合溶液的复介电系数进行了测量.实验结果和相关文献中的公式计算值基本吻合.
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| 关 键 词： | 大功率微波 终端开路同轴探头 天线模型 反射系数模值 复介电系数 |
| 文章编号： | 0490-6756（2007）03-0583-04 |
| 修稿时间： | 2006-08-252006-10-08 |
A new method to measure the complex permittivity of solution at high-power microwave |
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| HU Rong-hu,YANG Xiao-qing and HUANG Ka-ma.A new method to measure the complex permittivity of solution at high-power microwave[J].Journal of Sichuan University (Natural Science Edition),2007,44(3):583-586. |
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| Authors: | HU Rong-hu YANG Xiao-qing and HUANG Ka-ma |
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| Institution: | School of Electronics and Information Engineering,Sichuan University,School of Electronics and Information Engineering,Sichuan University,School of Electronics and Information Engineering,Sichuan University |
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| Abstract: | It is an important study in microwave chemistry to measure the effective complex permittivity of chemical reaction. The phase of reflection coefficient is usually required in traditional method of complex permittivity measurement. However, it is difficult to measure the phase of reflection coefficient accurately under high-power microwave. To solve the problem, a new method based on the antenna model is proposed in this paper. The complex permittivity of saline solutions and the mixture of methanol and ethanol was measured by this method. There was a good agreement between the measured and calculated results of formulas provided by references. |
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| Keywords: | high-power microwave open-ended coaxial probe antenna model the amplitude of reflection coefficient complex permittivity |
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