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首页> 外文会议>7th Biennial Conference on Engineering Systems Design and Analysis 2004(ESDA 2004) vol.3: Design Engineering; Maintenance Engineering; Manufacturing Engineering; ... >NON-INTRUSIVE MEASUREMENT OF VOLUME AND MASS USING ELECTRICAL CAPACITANCE TOMOGRAPHY
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NON-INTRUSIVE MEASUREMENT OF VOLUME AND MASS USING ELECTRICAL CAPACITANCE TOMOGRAPHY

机译：电容层析成像的非侵入式体积和质量测量

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Electrical capacitance tomography (ECT) has been used for some years to measure the concentration distribution within multiphase flows and processes. ECT is a relatively low resolution measurement, but it has many advantages, including being non-intrusive and fast. Recent developments of twin-plane systems have enabled measurements to be made of velocity as well as concentration. We have developed techniques to establish from these measurements the volume, mass and velocity of flow structures in two-component flows, and in particular the mass and velocity of large individual particles and groups of particles in solids/gas flow systems. Results are presented in the paper for simple gravity-drop flows of partly-filled plastic spheres, plastic beads, and also for the conveying of granular material in a pilot plant. We show that resolution of mass to within a few grams is possible on objects of individual mass of between 2g and 35g. We also show measurements of flow structure volumes in vertical solids conveying pipes of approximately 50mm diameter. General comparisons are made with high-speed video photography of some of the flows, and the in the case of gravity-drop flows the accuracy of the mass measurement is established using weighing.
机译：电容层析成像（ECT）已用于测量多相流和过程中的浓度分布数年。 ECT是一种相对较低的分辨率测量，但是它具有许多优点，包括非侵入性和快速性。双翼飞机系统的最新发展使得能够进行速度和浓度测量。我们已经开发出了从这些测量中确定两组分流动中的流动结构的体积，质量和速度的技术，尤其是固体/气体流动系统中大的单个颗粒和颗粒组的质量和速度。本文介绍了部分填充的塑料球，塑料珠的简单重力下降流以及在中试工厂中输送颗粒物料的结果。我们表明，对于单个质量在2g至35g之间的物体，质量分辨率可以在几克之内。我们还显示了直径约50mm的垂直固体输送管中流动结构体积的测量值。使用某些流的高速视频摄影进行一般比较，并且在重力流的情况下，使用称量确定质量测量的精度。

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