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Title: Evaluation of electrical capacitance tomography sensor based on the coupling of fluid field and electrostatic field
Author: Ye JiaMin(叶佳敏)1; Wang, Haigang1; Yang, Wuqiang2
Source: MEASUREMENT SCIENCE AND TECHNOLOGY
Issued Date: 2016-07-01
Volume: 27, Issue:7, Pages:1-13
Keyword: electrical capacitance tomography ; sensor structure ; electrodes ; coupling simulation ; sensitivity analysis
DOI: 10.1088/0957-0233/27/7/074003
DOC Type: Article
English Abstract: Electrical capacitance tomography (ECT) is based on capacitance measurements from electrode pairs mounted outside of a pipe or vessel. The structure of ECT sensors is vital to image quality. In this paper, issues with the number of electrodes and the electrode covering ratio for complex liquid-solids flows in a rotating device are investigated based on a new coupling simulation model. The number of electrodes is increased from 4 to 32 while the electrode covering ratio is changed from 0.1 to 0.9. Using the coupling simulation method, real permittivity distributions and the corresponding capacitance data at 0, 0.5, 1, 2, 3, 5, and 8 s with a rotation speed of 96 rotations per minute (rpm) are collected. Linear back projection (LBP) and Landweber iteration algorithms are used for image reconstruction. The quality of reconstructed images is evaluated by correlation coefficient compared with the real permittivity distributions obtained from the coupling simulation. The sensitivity for each sensor is analyzed and compared with the correlation coefficient. The capacitance data with a range of signal-to-noise ratios (SNRs) of 45, 50, 55 and 60 dB are generated to evaluate the effect of data noise on the performance of ECT sensors. Furthermore, the SNRs of experimental data are analyzed for a stationary pipe with permittivity distribution. Based on the coupling simulation, 16-electrode ECT sensors are recommended to achieve good image quality.
WOS Headings: Science & Technology ; Technology
WOS Subject: Engineering, Multidisciplinary ; Instruments & Instrumentation
WOS Subject Extended: Engineering ; Instruments & Instrumentation
WOS Keyword Plus: IMAGE-RECONSTRUCTION ALGORITHM ; ELECTRODES
Indexed Type: SCI
Funder: National Natural Science Foundation of China(61374018)
Language: 英语
WOS ID: WOS:000378821600005
Citation statistics:
Content Type: 期刊论文
URI: http://ir.etp.ac.cn/handle/311046/112452
Appears in Collections:中国科学院工程热物理所(论文库)_期刊论文(SCI)

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description.institution: 1.Chinese Acad Sci, Inst Engn Thermophys, Beijing 100190, Peoples R China
2.Univ Manchester, Sch Elect & Elect Engn, Manchester M13 9PL, Lancs, England

Recommended Citation:
Ye, Jiamin,Wang, Haigang,Yang, Wuqiang. Evaluation of electrical capacitance tomography sensor based on the coupling of fluid field and electrostatic field[J]. MEASUREMENT SCIENCE AND TECHNOLOGY,2016,27(7):1-13.
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文件名: 2016_MST_2_Cover_Evaluation of electrical capacitance tomography sensor based on the coupling of fluid field and electrostatic field.pdf
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