Capacitive tomographic method for sensitive field using coupled microwave imaging information

A technology of capacitance tomography and microwave imaging, which is used in material capacitance, material analysis by electromagnetic means, and material analysis, etc., can solve the problems of large difference in sensitive fields, low speed of reconstructed image solution, large reconstructed image error, etc.

Inactive Publication Date: 2016-11-23
INST OF ENGINEERING THERMOPHYSICS - CHINESE ACAD OF SCI
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Problems solved by technology

[0005] The main technical defect: the sensitive field of linear reconstruction is obtained under the condition of empty field, which is quite different from the actual sensitive field, and the error of the reconstructed image is relatively large
Semi-linear reconstruction needs to update the sensitive field in real time, the calculation time is long, and the solution speed of the reconstructed image is low

Method used

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  • Capacitive tomographic method for sensitive field using coupled microwave imaging information
  • Capacitive tomographic method for sensitive field using coupled microwave imaging information
  • Capacitive tomographic method for sensitive field using coupled microwave imaging information

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Embodiment Construction

[0057] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings. The following description of the embodiments of the present invention with reference to the accompanying drawings is intended to explain the general inventive concept of the present invention, but should not be construed as a limitation of the present invention.

[0058] Figure 5 Flowchart representing the electrical capacitance tomography method utilizing sensitive fields coupled to microwave imaging information. According to the general inventive concept of the present invention, a method for acquiring a sensitive field of electrical capacitance tomography coupled with microwave imaging information is provided, including steps:

[0059] S1: Obtain the Poisson equation of the electrical capacitance tomography system;

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Abstract

A capacitive tomographic method for a sensitive field using coupled microwave imaging information includes the steps of acquiring Poisson equation of a capacitive tomographic imaging system; acquiring distribution of dielectric constants by using microwave imaging information, and solving the Poisson equation through finite element method according to the distribution to obtain potential distribution of an area under measurement; acquiring sensitive field distribution by using the potential distribution; carrying out image reconstruction by using the sensitive field and reconstruction image algorithm. The capacitive tomographic method in fusion with microwave imaging enables reduced reconstructed image errors and increased solving speed; the imaging method can be applied to the processes such as circulating fluidized bed and coating to acquire in real time, a more precise gas-liquid concentration distribution image, and the above processes are more effectively monitored.

Description

technical field [0001] The invention relates to the field of tomography sensitive field acquisition, in particular to a capacitance tomography method using a sensitive field coupled with microwave imaging information, and the application of the sensitive field acquisition method to monitor a gas-solid flow system. Background technique [0002] Complex gas-solid flow systems widely exist in energy, pharmaceuticals, food processing and other chemical industries, such as gas-solid flow in circulating fluidized bed risers, coating and granulation processes in the pharmaceutical industry, etc. Achieving real-time monitoring of complex gas-solid flow processes is of great significance for process optimization, safe production, and increased output. Electrical Capacitance Tomography (ECT) is a real-time visual tomography technology that can obtain the gas-solid distribution information of the measurement cross-section or area, and can realize the gas-solid concentration in the flui...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N27/22
CPCG01N27/22G01N27/221
Inventor 叶佳敏吴蒙王海刚
Owner INST OF ENGINEERING THERMOPHYSICS - CHINESE ACAD OF SCI
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