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

AI Technical Summary

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 s

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

Experimental program
Comparison scheme
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Example Embodiment

[0019] Example 1:

[0020] ERT embodiment according to / ECT bimodal composite three-dimensional sensor according to the present embodiment, it is possible to visualize the internal structure of the concrete track moisture invasion process, which structure comprises a cover body case 1, a separator 2, the shield case 3, a large circular hole 4, a small circle holes 5, through holes 6, the fixing base 7, injection tube 8, ERT electrode 9, the screw 10, nut 11, ECT electrode 12, electrode pad 13 and lead 14; a side cover like bottomless rectangular parallelepiped box structure 1 pitch formula 2 is provided with a partition plate 3, the cover case 1 is provided with an external jacket bottomless shield case 3, the same eccentricity at a top surface of the cover case 1 and the shield case 3 is defined in the same larger round top 4, the cover case 1 and both side surfaces 28 defines a small circular hole 5, each separator 2 at equal pitches of formula 52 defines a through-hole 6 at th...

Example Embodiment

[0022] Example 2:

[0023] The present embodiment relates to the ERT / host structure ECT bimodal composite three-dimensional sensor with the main structure of Example 1, which visualize the internal structure of the tracking process and the intrusion of concrete moisture transfer process comprising the steps of:

[0024] One, prepared in accordance with the set ratio of length 10cm, width 10cm, height 15cm concrete configuration of a rectangular parallelepiped member 100, is placed in the curing room after 7 days of curing, into the blast oven dried to constant weight; and after the concrete member 7 and the injection pipe holder 8 integrally bonded to the paste composition was cooled to room temperature at the top surface 100 of the eccentric;

[0025] They are used two attached above oily glue embodiment;

[0026] Second, the ECT electrode 12 is attached to uniformly cover the surface 1 of the five boxes and cutting the large circular hole and a small hole at the corresponding ...

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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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