| 气固两相流固相浓度电容式传感器优化设计 |
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| 引用本文： | 曹章,王化祥.气固两相流固相浓度电容式传感器优化设计[J].仪器仪表学报,2007,28(11):1956-1959. |
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| 作者姓名： | 曹章 王化祥 |
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| 作者单位： | 天津大学电气与自动化工程学院,天津,300072 |
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| 基金项目： | 国家自然科学基金;国家科技部支撑计划 |
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| 摘 要： | 本文建立了一种螺旋式电容传感器的数学模型,并基于该模型对传感器结构进行了优化设计。优化后的结构可以产生较均匀的灵敏场分布,实测结果表明,优化后的传感器电容值与固相浓度具有良好的线性关系,测量点的线性相对偏差小于0.8%,适用于气固两相流固相浓度的测量。
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| 关 键 词： | 气固两相流 电容传感器 数学模型 灵敏场分布 固相浓度 |
| 修稿时间： | 2007-08 |
Optimization of capacitive sensors for solid concentration measurement in gas/solid two-phase flow |
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| Cao Zhang,Wang Huaxiang.Optimization of capacitive sensors for solid concentration measurement in gas/solid two-phase flow[J].Chinese Journal of Scientific Instrument,2007,28(11):1956-1959. |
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| Authors: | Cao Zhang Wang Huaxiang |
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| Affiliation: | School of Electrical Engineering and Automation, Tianjin University, Tianjin 300072, China |
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| Abstract: | A mathematical model is established for the structure optimization of a helical capacitive sensor for the measurement of solid concentration in gas/solid two-phase flow. Experimental results show that optimized structure generates nearly uniform sensitivity distribution, and there exists a linear relationshi Pbetween the measured capacitance and solid concentration. The deviation of measurement points from the linear regression line is less than 0. 8%. |
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| Keywords: | gas/solid two-phase flow helical capacitive sensor mathematical model sensitivity distribution solid concentration |
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