| 循环流化床上ECT传感器灵敏场的有限元分析 |
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| 引用本文： | 邵秀凤,杨鼎才,王小建,聂晓伟.循环流化床上ECT传感器灵敏场的有限元分析[J].工业仪表与自动化装置,2005(5):66-68. |
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| 作者姓名： | 邵秀凤 杨鼎才 王小建 聂晓伟 |
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| 作者单位： | 燕山大学,信息科学与工程学院,河北秦皇岛,066004 |
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| 摘 要： | 电容层析成像传感器的敏感场受多相流介质分布的影响,软场特性给图像重建带来很大困难,为了提高重建图像质量,对敏感场分布进行分析是非常必要的.该文以12电极方形电容传感器为基础,对电容层析成像技术应用于循环流化床研究做了简单阐述,着重研究了用有限元法对方形电容传感器敏感场分布的计算机仿真,讨论了负敏感场的处理方法.
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| 关 键 词： | 电容层析成像 敏感场 有限元 |
| 文章编号： | 1000-0682（2005）05-0066-03 |
| 收稿时间： | 2004-06-03 |
| 修稿时间： | 2004年6月3日 |
Finite element method analysis of sensitivity distribution of electronic capacitance tomography on circulating fluidized bed |
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| SHAO Xiu-feng,YANG Ding-cai,WANG Xiao-jian,NIE Xiao-wei.Finite element method analysis of sensitivity distribution of electronic capacitance tomography on circulating fluidized bed[J].Industrial Instrumentation & Automation,2005(5):66-68. |
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| Authors: | SHAO Xiu-feng YANG Ding-cai WANG Xiao-jian NIE Xiao-wei |
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| Affiliation: | Institute of Information Engineering, Yanshan University, Hebei Qinhuangdao, 066004, China |
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| Abstract: | Sensor sensitivity field in electrical capacitance tomograhpy(ECT) is affected by the distribution of multiphase medium,that is the peculiarity of soft field,which brings great difficulty for image reconstruction.To improve the quality of image reconstruction,it is necessary to analyze the distribution of sensitivity field.This paper simply summarizes the ECT used in circulating fluidized bed based on 12-electrode capacitance tomography sensor,and mainly investigates the computer simulation to the distribution of sensitivity field in ECT by using finite element method.The disposal of negative sensitivity field is discussed. |
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| Keywords: | electrical capacitance tomography(ECT) sensitivity field finite element |
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