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电阻层析成像系统软场特性研究
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2009-07-09
贾伟刚
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基于有限元仿真结果对电阻层析成像(ERT) 传感器的“软场”特性作了深入研究。研究结果表明, ERT 传感器的“软 场”特性主要体现在其灵敏场的分布受被测介质的分布及两相介质电导率差值的影响。其它条件相同电极数目不同的ERT 的灵敏场分布有所不同, 但软场特性基本相同。
关键词 电阻 层析成像 传感器
Abstract Based on finite element simulat ion result s, the soft field characterist ics of ERT senso r were studied. It is found that soft field characterist ics are mo st ly reflected in the influence of dist ribut ion of medium s and the dif2 ference in conduct ivity of two2phase medium s on the dist ribut ions of sensit ive field. The dist ribut ions of ERT sensit ive fields are different if the numbers of elect rodes are no t the same w ith o ther condit ions ident ical, but the characterist ics of soft fields are mo st ly alike.
Key words Resistance Tomography Senso r
关键词 电阻 层析成像 传感器
Abstract Based on finite element simulat ion result s, the soft field characterist ics of ERT senso r were studied. It is found that soft field characterist ics are mo st ly reflected in the influence of dist ribut ion of medium s and the dif2 ference in conduct ivity of two2phase medium s on the dist ribut ions of sensit ive field. The dist ribut ions of ERT sensit ive fields are different if the numbers of elect rodes are no t the same w ith o ther condit ions ident ical, but the characterist ics of soft fields are mo st ly alike.
Key words Resistance Tomography Senso r
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