公开(公告)号：US11703474B2

公开(公告)日：2023-07-18

申请号：US17433095

申请日：2020-11-26

Applicant: QINGDAO UNIVERSITY OF TECHNOLOGY

Inventor： Peng Zhang ,  Wentao Wang ,  Kaiyue Zhao ,  Jiuwen Bao ,  Tiejun Zhao

IPC: G01N27/22 ,  G01N33/38

CPC classification number: G01N27/223 ,  G01N27/226 ,  G01N33/383

Abstract: The present application belongs to the technical field of monitoring of durability of concrete, and particularly relates to a method for optimizing a structure of an electrical capacitance tomography sensor and analyzing an electromagnetic field. A specific process of the method includes eight steps: parameter setting, geometric setting, material setting, mesh generation, physical field setting, solution, sensor structure optimization and calculation of electromagnetic field distribution. The method proposes a new concept for solving a forward problem of an ECT system based on COMSOL software. After modeling is completed, uniformity of a sensitive field of the ECT sensor is analyzed according to calculation results, and structural parameter values of components of the ECT sensor are adjusted to seek an optimal design scheme.

公开(公告)号：US20240369529A1

公开(公告)日：2024-11-07

申请号：US18030285

申请日：2022-06-16

Applicant: Qingdao University of Technology

Inventor： Peng Zhang ,  Wentao Wang ,  Jiuwen Bao ,  Shanbin Xue

IPC: G01N33/38 ,  G01N27/04 ,  G01N27/22

Abstract: The present disclosure relates to an ERT/ECT dual-modality combined three-dimensional sensor. A cover box is sheathed with a shielding box, a plurality of small round holes are formed in the top surface and the side surfaces of the cover box, ERT electrodes are arranged in the small round holes, and ECT electrodes are arranged at the outer sides of the ERT electrodes. The ERT electrodes are connected to an ERT data acquisition box via electrode leads, and the ECT electrodes are connected to an ECT data acquisition box via the electrode leads. An integrated cuboid design in line with the concrete structure is employed. Meanwhile, the dimensions, combination modes, placement modes and positions, supporting structures, shielding devices, electrode leads and leading-out modes of two sets of electrode arrays are subjected to comprehensive optimization design to achieve three-dimensional visual nondestructive monitoring of the moisture intrusion process in the concrete structure.