Two-phase Flow Recognition Method Based on Data Fusion
A flow pattern recognition and data fusion technology, which is applied in the fields of electrical digital data processing, character and pattern recognition, special data processing applications, etc., can solve problems such as the inability to obtain quantitative features, and achieve a simple judgment process, accurate recognition results, and descriptions. full effect
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[0045] The calculation method of the present invention will be described in detail below in conjunction with the accompanying drawings.
[0046] The present invention is based on the multi-electrode sensor structure of resistance tomography technology, uses the algorithm of modularized Dirichlet energy to divide the modules and calculate the corresponding energy value, and uses the ratio information of energy distribution as the feature; combined with the echo obtained by the ultrasonic sensor The spectral distribution diagram of the signal, extracting bandwidth information as a feature, and obtaining the three-dimensional distribution results of gas-water two-phase bubbly flow, plug flow, slug flow, annular flow and stratified flow in horizontal pipes, and combining the two-phase sensor extraction Finally, an index that can quantitatively identify the flow pattern is obtained.
[0047] figure 1Schematic diagram of the electrical resistance tomography system in the measuremen...
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