An ect/mwt dual-modality imaging sensor

Abstract

The invention provides an ECT / MWT dual-mode imaging sensor. The microwave sensing component and the capacitive sensing component are located in the same section to be measured or the distance between them is small, and the images of the microwave sensing component and the capacitive sensing component are weighted and superimposed. , the fusion imaging result can be obtained. The fusion imaging result contains features that a single imaging modality does not have, and can better reflect the real flow state of the fluid; the imaging rate of the capacitive sensing component can reach hundreds of frames per second, and can capture coherent The fluid manifold evolution process has a high imaging rate and sensitivity; the microwave sensing component can image high-humidity media, with strong adaptability to working conditions and a wide range of applications.

Description

technical field [0001] The invention relates to the technical field of sensors, in particular to an ECT / MWT dual-mode imaging sensor. Background technique [0002] Process tomography is a process parameter measurement technology developed in recent years, which is widely used in medical, chemical, energy and other fields. Compared with traditional measurement methods, process tomography has the advantage of directly imaging the inside of the measured medium without interfering with the movement of the measured medium. Common process tomography techniques include Magnetic Resonance Imaging (MRI), Electrical Resistance Tomography (ERT), Electrical Capacitance Tomography (ECT), and Microwave Tomography (MWT). )wait. The existing process tomography can be divided into two types: single imaging modality operation and multi-imaging modality fusion. [0003] Electrical capacitance tomography is a visual measurement technology that inversely deduces the spatial distribution of th...

AI Technical Summary

Problems solved by technology

[0006] The fusion of a single imaging modality and multiple imaging modalities has certain technical defects. For example, for ECT imaging devices, when the humidity of the measured object is high, it will exceed the range of the data acquisition system. At this time, the electrical properties of the measured substance are close to conductors. , cannot measure the capacitance, therefore, the ECT device cannot measure substances with high humidity, making its application range limited

The MWT imaging device has a slow imaging rate, up to 30 frames per second, and poor sensitivity

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