| 论文标题 |
Complex Sensitivity Coefficient Theory and Its Validation for Elimination the Influence of Particle Electrification on DC-Based ECT |
| 作者 |
Tang Kaihao, Hu Hongli*, Li Lin1, Wang Xiaoxin |
| 发表/完成日期 |
2019-05-01 |
| 期刊名称 |
IEEE Transactions on Instrumentation and Measurement |
| 期卷 |
DOI 10.1109/TIM.2019.2910343 |
| 相关文章 |
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| 论文简介 |
Electrical capacitance tomography (ECT) is an image-based technology which has been widely used for gas-solid two-phase flow measurement. Solid phase electrification is an inevitable phenomenon during pneumatic conveying. To reduce the influence of medium electrification on ECT image reconstruction, a composite sensitivity matrix (CSM) which takes into account the effect of charge electrification is developed in this paper, so that image reconstruction error can be well suppressed. This paper firstly analyzes how medium electrification affects ECT sensitivity field from the perspective of electromagnetic theory. The CSM is then derived accordingly. Simulations and physical experiments are carried out to validate the proposed method. Experiment results show that the relative error and the correlative coefficient of the reconstructed images have been significantly improved comparing with that in traditional approaches. The results support effectiveness of the proposed method. |
(创新港)
