A magnetic induction electrical impedance imaging device and method for spatial physical contrast frames

Abstract

The invention discloses a device for magnetic induction impedance imaging by means of space physics comparison frames. The device comprises a background reference frame data collection electrode structure, an object measurement frame data collection electrode structure, a data module 1, a data module 2, a difference imaging module, an output image module, a time sequence switch module, a switch A and a switch B. The data module 2, the data module 1 and the difference imaging module are connected in sequence; and the background reference frame data collection electrode structure and the object measurement frame data collection electrode structure are connected with the data module 2 through the switch A. The device can track environmental changes best by the adoption of physical space reference frames, a frame of original data are utilized to rebuild a target impedance distribution image, and the application adaptability under various environments is guaranteed, so that the measurement of target fault static impedance distribution.

Description

technical field [0001] The invention belongs to the field of magnetic induction electrical impedance imaging, and in particular relates to a magnetic induction electrical impedance imaging device and method for space physical contrast frames. Background technique [0002] Magneto-induced electrical impedance tomography is to apply electromagnetic wave excitation at several points of a fault plane of the measured target, and receive the electromagnetic wave excitation signal after the target disturbance at these points, and then obtain the internal electrical impedance distribution of the target through the reconstruction algorithm. However, due to the extremely high precision and temperature stability required for the measurement, conventional methods cannot complete this measurement. Therefore, a dynamic electrical impedance tomography method for reconstructing the distribution image of resistivity changes has emerged. However, the dynamic electrical impedance imaging meth...

AI Technical Summary

Problems solved by technology

Although the traditional single-group electrode structure can use the time sequence, the first set of data collected as the physical reference frame, but in the actual measurement, the reference frame is to collect the environmental interference environment as the background frame reference data before measuring the target. , this background frame cannot track environmental changes

Images