Design of ERT system

A new electrical resistance tomography （ERT） system, based on the bi-directional current pulse technique, is developed. Polarization effects at the electrodes are eliminated. During each half cycle of the excitation process, direct current （DC） is used as the excitation source and filtering is not n...

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Bibliographic Details
Published in:Journal of Zhejiang University. A. Science 2005-12, Vol.6 (12), p.1446-1448
Main Author: 朱建平 王保良 黄志尧 李海青
Format: Article
Language:English
Subjects:
ERT
X线断层摄影术
体系结构
电子阻抗
脉冲电压
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Summary:A new electrical resistance tomography （ERT） system, based on the bi-directional current pulse technique, is developed. Polarization effects at the electrodes are eliminated. During each half cycle of the excitation process, direct current （DC） is used as the excitation source and filtering is not needed. Moreover, using optimized data collection protocol, the number of current injections for a 16-electrode system is reduced to 14 for 104 independent readings of an image. Experimental results showed that the system is effective using the sensitivity coefficient algorithm for image reconstruction.
ISSN:1673-565X
1009-3095
1862-1775
DOI:10.1631/jzus.2005.A1446