Three-dimensional electrical capacitance tomography in rectangular spouted bed

SUN Yang; YANG Daoye; LIU Dazhen; FENG Wenxuan; GU Muyang

doi:10.11949/j.issn.0438-1157.20180086

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Three-dimensional electrical capacitance tomography in rectangular spouted bed

更新时间：2025-12-10

- Three-dimensional electrical capacitance tomography in rectangular spouted bed
- CIESC Journal Issue 8, Pages: 3383-3389(2018)
- 作者机构：
  
  南京工业大学电气工程与控制科学学院,江苏,南京,211816
- 作者简介：
- 基金信息：
- DOI：10.11949/j.issn.0438-1157.20180086
  CLC： B934
- Online First：05 August 2018，
  
  Published：05 August 2018
- 稿件说明：
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SUN Yang, YANG Daoye, LIU Dazhen, et al. Three-dimensional electrical capacitance tomography in rectangular spouted bed[J]. CIESC Journal, 2018, (8): 3383-3389.
DOI：

SUN Yang, YANG Daoye, LIU Dazhen, et al. Three-dimensional electrical capacitance tomography in rectangular spouted bed[J]. CIESC Journal, 2018, (8): 3383-3389. DOI： 10.11949/j.issn.0438-1157.20180086.

摘要

设计了32电极三维电容层析成像（ECVT）系统用于矩形喷动床内颗粒流动特性的研究。建立有限元仿真模型并计算灵敏场，对传感器特性进行仿真分析并成像验证了该灵敏场的准确性。搭建同尺寸的喷动床，应用32电极ECVT数据采集系统获取喷动床ECVT电极对间电容，选用线性反投影（LBP）算法重建床内三维介电常数分布。实验结果显示，研发的32电极ECVT系统可以有效地检测到喷动床内部颗粒从静止到循环运动全过程的规律性运动，从而为喷动床内部颗粒运动特性的研究提供了有效手段。

Abstract

A 32-electrode electrical capacitance volume tomography (ECVT) system was designed to investigate the characteristics of particles flow in rectangular spouted bed. To calculate the sensitive field

the finite element simulation model was established. The sensor characteristics were simulated and analyzed. The accuracy of sensitive field was verified by imaging. By making scale solid model

the capacitance of electrode couples attached around the model was carried out by using the system. Linear back projection (LBP) algorithm was adopted to reconstruct the distribution of three-dimensional dielectric constant in the bed. The results indicated that the 32-electrode ECVT system can detect the regular movement of particles from static to circular in the spouted bed effectively

which provided another effective method for the research of motion characteristics of particles in the spouted bed.

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