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Square double mode self-calibration sensor and image rebuilding method based on sensor thereof

A sensor and self-calibration technology, which is applied in image enhancement, image data processing, image data processing, etc., can solve the problem that the simultaneous measurement of virtual and real part information cannot be realized, the sensor does not have calculable uniformly distributed measured values, and does not have self-calibration, etc. Problems, to achieve the effect of expanding the measurement range and measurement accuracy and response speed, widening the measurement range, designing and realizing simplicity

Inactive Publication Date: 2007-09-12
TIANJIN UNIV
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Problems solved by technology

Before the present invention, the ECT sensor that the square measurement area adopts still can't realize the synchronous measurement of virtual and real part information (such as patent CN01229907, the invention name is "a kind of square electrical capacitance tomography sensor), has limited EIT technology in the air with certain humidity. Application in Measurement of Solid Two-Phase Flow
Moreover, the sensors before the present invention do not have the measured values ​​corresponding to the calculable uniform distribution, and thus do not have the function of self-calibration

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  • Square double mode self-calibration sensor and image rebuilding method based on sensor thereof
  • Square double mode self-calibration sensor and image rebuilding method based on sensor thereof
  • Square double mode self-calibration sensor and image rebuilding method based on sensor thereof

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Embodiment Construction

[0024] The dual-mode electrical imaging system sensor and the image reconstruction method based on the sensor of the present invention will be described with reference to the drawings and embodiments.

[0025] As shown in Figures 1 and 2, in the cross-section of the dual-mode electrical imaging system sensor, its structure is composed of three layers, the outer layer structure is a metal tube layer 1, which plays the role of structural fixation and shielding, and the middle layer structure is a thin insulating layer. Material layer 2, whose thickness is less than 3% of the electrode size, and ensures that the electric field strength between the electrode and the metal tube layer 1 is smaller than the breakdown strength of the insulating material layer 2, and the inner layer structure layer 3 is a multilayer attached to the insulating layer 2. The electrodes are distributed on the same section according to a certain rule, the position and size of the electrodes are obtained by c...

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Abstract

This invention supplies a squareness double mode self-standardization sensor. Cross section of this sensor embody three-layer: outer layer is metallic conduit layer used for structure fixing and shielding effect; intermediate layer is insulant layer; inner layer structure is multi- pole attach at insulating layer; the poles dispersed over identity section to a certainty order, interval of neighbor pole is not equidistant. These inventions also supply two kinds of image reconstruction method base on this sensor. Aim at squareness measuring region, this double mode electricity imaging system sensor spread measuring range. The invention can measure object of different section and stimulation nonsynchronous, possess self-standardization property. The invention adopts multifold stimulation mode, realize synchronization and coordination measuring, make real part and imaginary part information of measuring sectional impedance distribution each other merge, and simplify the design and realization of soft and hard ware of bimodal measuring system.

Description

technical field [0001] The invention relates to a detection device and its application, in particular to a square dual-mode self-calibration sensor and an image reconstruction method based on the sensor. Background technique [0002] Electrical Impedance Tomography (EIT) is a visual parameter detection technology of multiphase flow developed in recent years. In order to realize visual measurement, the core component of the whole system is the impedance sensor, which obtains the impedance information of the medium on the pipe section, and then realizes parameter detection in the form of tomography. [0003] At present, most of the EIT system sensors designed for industrial applications are single-mode measurement methods. According to the different properties of the measured parameters, it can be divided into electrical resistance tomography (Electrical Resistance Tomography-ERT) and electrical capacitance tomography (Electrical Capacitance Tomography-ECT). [0004] The ERT...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N27/02G01N27/00G06T1/00G06T5/00G06F19/00G06F17/10
Inventor 王化祥曹章
Owner TIANJIN UNIV
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