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For measuring a flow velocity, a cross-correlation method may be used to determine the transit time between two points in a flow system. Cross-correlation is a powerful mathematical tool used in many flow meters. Since it is principally based on the time delay measurement, it imposes very few restrictions on the transducers. Various sensing techniques have been employed in flow meters involving in...
This paper proposes a novel method for flow velocity measurement in twin-plane electrical capacitance tomography (ECT) system, and applies it to coal ash measurement in a pneumatic pipeline. The proposed method is base on the Mann-Kendall method, which has been frequently used in abrupt climate change detection. First, the change-point of cross-sectional solid concentration values at each plane is...
Capacitance and resistance tomography systems have been developed for visualizing the distributions of materials in an industrial process. They offer certain advantages over other tomography modalities, such as low cost, rapid response, no radiation and being non-intrusive. Single modal tomography could provide a satisfactory solution in most process applications. However, in some more complex applications,...
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