| 一种基于电势分布的电容成像敏感分布计算方法 |
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| 引用本文： | 牟昌华,彭黎辉,姚丹亚,张宝芬,萧德云. 一种基于电势分布的电容成像敏感分布计算方法[J]. 计算物理, 2006, 23(1): 87-92 |
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| 作者姓名： | 牟昌华 彭黎辉 姚丹亚 张宝芬 萧德云 |
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| 作者单位： | 清华大学自动化系,检测与电子技术研究所,北京,100084;清华大学自动化系,检测与电子技术研究所,北京,100084;清华大学自动化系,检测与电子技术研究所,北京,100084;清华大学自动化系,检测与电子技术研究所,北京,100084;清华大学自动化系,检测与电子技术研究所,北京,100084 |
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| 摘 要： | 系统分析了电容成像(Electrical capacitance tomography,简称ECT)系统敏感分布和电势分布的关系,统一了计算公式,该目的简单且计算量小.仿真表明,采用该目的计算的ECT敏感分布,与采用定义计算的结果吻合.
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| 关 键 词： | 电容成像 图像重建 敏感分布 高斯定理 |
| 文章编号： | 1001-246X（2006）01-0087-06 |
| 收稿时间： | 2004-11-18 |
| 修稿时间： | 2005-01-24 |
A Calculation Method of Sensitivity Distribution with Electrical Capacitance Tomography |
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| MOU Chang-hua,PENG Li-hui,YAO Dan-ya,ZHANG Bao-fen,Xiao De-yun. A Calculation Method of Sensitivity Distribution with Electrical Capacitance Tomography[J]. Chinese Journal of Computational Physics, 2006, 23(1): 87-92 |
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| Authors: | MOU Chang-hua PENG Li-hui YAO Dan-ya ZHANG Bao-fen Xiao De-yun |
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| Affiliation: | Department of Automation, Tsinghua University, Beijing 100084, China |
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| Abstract: | The relationship between the permittivity distribution and the measured capacitance in electrical capacitance tomography(ECT) is described by the sensitivity distribution which directly affects the image reconstruction.The sensitivity distribution is mainly computed according to its definition which is complicated and time-consuming.We analyze relationship between the sensitivity distribution and the electric potential distribution in ECT.The calculation formulae are pressented.The method is simple and fast.Simulation results show that the sensitivity distribution obtained by this method is consistent with that of the traditional method. |
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| Keywords: | electrical capacitance tomography image reconstruction sensitivity distribution Gauss divergence theorem |
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