ERT/ECT bimodal composite three-dimensional sensor

A composite sensor technology, applied in the direction of instruments, scientific instruments, measuring devices, etc., can solve the problems of lack of comparison and verification methods for imaging results, inability to provide three-dimensional detection results, and small dynamic monitoring range, so as to increase coverage and protect The effect of being damaged and preventing electromagnetic field interference

Pending Publication Date: 2022-03-18
QINGDAO TECHNOLOGICAL UNIVERSITY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] The purpose of the present invention is to overcome the shortcomings of the prior art, such as complex structure, small dynamic monitoring range, unsuitability for monitoring concrete structures, inability to provide three-dimensional detection results, and lack of comparison and verification methods for imaging results, and seek to design a simple structure and low cost , ERT / ECT dual-mode composite three-dimensional sensor with wide dynamic monitoring range and structural integration to track the moisture intrusion process inside the concrete structure, providing technical and theoretical support for the research on the durability of concrete structures

Method used

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  • ERT/ECT bimodal composite three-dimensional sensor
  • ERT/ECT bimodal composite three-dimensional sensor
  • ERT/ECT bimodal composite three-dimensional sensor

Examples

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Embodiment 1

[0020] The ERT / ECT dual-mode composite three-dimensional sensor involved in this embodiment can realize the visual tracking of the intrusion process of moisture inside the concrete structure. Hole 5, through hole 6, fixing seat 7, water injection pipe 8, ERT electrode 9, screw rod 10, nut 11, ECT electrode 12, gasket 13 and electrode lead wire 14; the sides of the cover box 1 with bottomless cuboid structure are equally spaced There are 3 partitions 2, the outside of the cover box 1 is provided with a bottomless shielding box 3, the top surface of the cover box 1 and the shielding box 3 are provided with the same large round hole 4 at the same eccentric place, the top of the cover box 1 There are 28 small round holes 5 on the surface and sides, and 52 through holes 6 are equally spaced on each partition 2, and the edge of the large round hole 4 of the shielding box 3 is provided with a ring-shaped fixing seat 7 , the fixed seat 7 is provided with a water injection pipe 8 with ...

Embodiment 2

[0023] The main structure of the ERT / ECT dual-mode composite three-dimensional sensor involved in this embodiment is the same as the main structure of Example 1, and its process of visually tracking the moisture intrusion and transmission process inside the concrete structure includes the following steps:

[0024] 1. Prepare a concrete component 100 with a cuboid structure of 10 cm in length, 10 cm in width and 15 cm in height according to the set mix ratio, place it in a standard curing room for 7 days, and then put it into a blast drying oven to dry to constant weight; The fixing seat 7 and the water injection pipe 8 are pasted together and then pasted on the eccentric part of the top surface of the concrete member 100 cooled to room temperature;

[0025] The above two pastes are all pasted with oily glue;

[0026] 2. Paste the ECT electrodes 12 evenly on the five sides of the cover box 1, cut and open holes corresponding to the large round holes 4 and small round holes 5 to...

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Abstract

The invention belongs to the technical field of concrete durability monitoring, and relates to an ERT / ECT bimodal composite three-dimensional sensor, which is characterized in that a shielding box sleeves the outer part of a cover box, a plurality of small round holes are formed in the top surface and the side surface of the cover box, ERT electrodes are arranged in the small round holes, ECT electrodes are arranged on the outer sides of the ERT electrodes, the ERT electrodes are connected with an ERT data acquisition box through electrode leads, and the ERT data acquisition box is connected with the ERT data acquisition box. A conventional sensor is improved through discipline crossing and is applied to the field of concrete structure durability monitoring, a conventional cylinder design scheme is abandoned, an integrated cuboid design more conforming to a concrete structure is adopted, and the durability of the concrete structure is monitored. Meanwhile, the sizes, combination modes, placement modes and positions, supporting structures, shielding devices, electrode leads and leading-out modes of the electrode leads of the two sets of electrode arrays are comprehensively optimized and designed, three-dimensional visual nondestructive monitoring of the intrusion process of the water in the concrete structure is achieved, and a scientific means is provided for durability research of the concrete structure.

Description

Technical field: [0001] The invention belongs to the technical field of concrete durability monitoring, and relates to an ERT / ECT dual-mode composite three-dimensional sensor, which can realize three-dimensional visual non-destructive monitoring of moisture transmission inside a concrete structure. Background technique: [0002] Concrete structure has become one of the most widely used structural forms in the world, including housing construction, road bridges, special projects, ports and wharf projects. However, concrete structures will inevitably be affected by the external environment during actual service. Different degrees of damage occur, making the durability gradually reduced. The durability of concrete structures has an important impact on the sustainable and coordinated development of society and economy. Therefore, it is of great significance to study the durability degradation mechanism of concrete structures in depth, and then take corresponding measures to impr...

Claims

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Application Information

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IPC IPC(8): G01N27/00
CPCG01N27/00
Inventor 张鹏王文涛赵凯月鲍玖文
Owner QINGDAO TECHNOLOGICAL UNIVERSITY
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