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International Society for Industrial Process Tomography

7th World Congress on Industrial Process Tomography

A New Optimization Method for ECT Sensor Design

Nan Lia, Pai Wangb, Ying Hanc

aDepartment of Mechanical Engineering and Applied Electronics Technology, Beijing University of Technology, 100124, China

b The Institute of Intelligent Control Image Engineering, Xidian University, Xi?an 710071, China

c The twentieth Research Institute of China Electronic Technology Group Corporation, Xi?an 710071, China


Abstract


A new optimization method for ECT sensor design based on the orthogonal experimental design is presented. The sensor structure and sensor model are proposed. The sensitivity uniformity index of empty pipe and half pipe filled with Engine oil are set as the optimization objectives. The experiments are set up based on multi-index orthogonal design. The optimizing parameters of the sensor structure include the number of electrodes, electrode width (corresponding to central angel) and radius of pipe wall. The typical sensitivity maps of the optimized sensor are presented at last. The experimental results indicate that the method can derive an evenly distributed sensitivity field. Compared with the full collocation method, the number of experiments is reduced by 66%. The experimental results are intuitive, reliable, and practical.


Keywords: Orthogonal Design; Electrical Capacitance Tomography; Optimization Design; Sensitivity map

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