基于电容测量和PCA法的两相流相浓度检测方法 |
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引用本文: | 陆耿,邹璐,彭黎辉,姚丹亚,张宝芬.基于电容测量和PCA法的两相流相浓度检测方法[J].中国计量学院学报,2003,14(1):15-18. |
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作者姓名: | 陆耿 邹璐 彭黎辉 姚丹亚 张宝芬 |
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作者单位: | 清华大学,自动化系检测及电子技术研究所,北京,100084 |
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基金项目: | 国家自然科学基金项目(69874022),国家高技术研究发展计划专项经费资助项目 |
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摘 要: | 介绍利用电容层析成像系统阵列传感器结构和采样特点,引入主成分分析法(PCA)求取两相流相浓度的新方法.对大量测量值样本进行统计分析后,求出用测量值第一主成分求取相浓度的经验公式,仿真及静态实验表明:两者之间有着良好的对应关系,其测量结果不受两相流流型的影响,是一种有较好应用前景的测量方法.
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关 键 词: | 两相流 电容测量系统 主成分分析 |
文章编号: | 1004-1540(2003)01-0015-04 |
Two-phase flow concentration measurement method based on principal component analysis |
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Abstract: | This paper introduced a method for two\|phase flow concentration measuring. Principal component analysis is used to analyze the raw data from electrical capacitance tomography sensor and the concentration can be extracted from measurements. Simulation and static experiments showed that the frist principal component coincides with the phase concentration and does not depend on the flow regimes. The method is promising for application. |
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Keywords: | two-phase flow electrical capacitance tomography principal component analysis |
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