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Complete solid-state beam current type reinforcing steel corrosion monitoring sensor and method for producing the same

A technology for monitoring the corrosion of sensors and steel bars, applied in the field of sensors, can solve the problems of difficulty in determining the area of ​​WE of the working electrode, deviation and other problems

Inactive Publication Date: 2010-11-03
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] For practical engineering, it is difficult to determine the area of ​​the working electrode WE in the electrochemical method, so there will be a relatively large deviation in the corrosion rate determined according to the corrosion current. This problem has always been a serious obstacle to the field application of the electrochemical method.

Method used

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  • Complete solid-state beam current type reinforcing steel corrosion monitoring sensor and method for producing the same
  • Complete solid-state beam current type reinforcing steel corrosion monitoring sensor and method for producing the same
  • Complete solid-state beam current type reinforcing steel corrosion monitoring sensor and method for producing the same

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Embodiment Construction

[0060] The present invention is described in more detail below in conjunction with accompanying drawing example:

[0061] 1. Preparation of beam ring and wire welding

[0062] In this embodiment, the beam flow ring adopts graphite beam flow ring, and the specific size of the beam flow ring is shown in figure 2 , using mold compression molding. A hole with a diameter of 1 mm is drilled on the side wall of the pressed beam ring, and then the wire is tightly pressed into the hole with Cu powder to ensure good electrical conductivity. In addition, considering the sealing problem of the wire, first use AB glue to seal the connection between the wire and the beam ring, and then put the thermoplastic tube on the wire at the connection end of the wire and the beam ring. After heating, the thermoplastic tube is tightly pressed on the Outside the wire, the connection between the thermoplastic tube and the graphite is sealed again with AB glue, so as to ensure that the wire does not l...

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Abstract

The present invention provides a total solid beam contraction type steel corrosion monitoring sensor and a preparation method thereof. The total solid beam contraction type steel corrosion monitoring sensor comprises three graphite beam contraction rings, three total solid reference electrode, two sensor fixing racks, three sets of beam contraction protecting casing and three sets of PVC tubes used for packing the total solid reference electrodes and leading out the conducting wire. The invention uses finite elements for analyzing the arrangement characteristic of potential wire in solid dielectric of concrete, and at the same time adopts a long-lifetime and total solid reference electrodes which are developed independently for realizing the control to the area of working electrode in thecorrosion monitoring process with the electrochemistry method. Finally the total solid beam contraction type corrosion sensor which has reasonable structure and is suitable for the application of actual project is designed out. A designing concept of ''plug and play'' is adopted in the designing process of sensor. The fast construction requirement can be satisfied, and the laying process of the sensor is greatly simplified.

Description

(1) Technical field [0001] The invention relates to a sensor technology used in civil engineering, in particular to a steel bar corrosion monitoring sensor for health monitoring of civil engineering structures. (2) Background technology [0002] Past studies have shown that steel bar corrosion is one of the reasons for the damage and failure of steel-concrete structures. The maintenance and repair of corroded structures and the replacement of components have invested a lot of money in the world. The monitoring of steel bar corrosion in civil engineering is a structural health monitoring and overall An important part of life design. [0003] In the concrete environment, due to the porosity of concrete, moisture and oxygen can migrate along the pores and cracks, which happens to be a necessary condition for the corrosion of steel such as low carbon steel and high strength alloy steel. The reason why no corrosion occurs in most cases is that the hydration process of cement in ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N17/02G01N27/406
Inventor 欧进萍乔国富
Owner HARBIN INST OF TECH
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