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Method for constructing fiber crack sensor on miter gate

A construction method and sensor technology, applied in the direction of converting sensor output, using optical devices to transmit sensing components, instruments, etc., can solve the problems of damage detection system, water pressure difference, dispersion, etc., and achieve optimization of wiring, efficient use of resources, The effect of taking up less space

Active Publication Date: 2016-12-07
DALIAN MARITIME UNIVERSITY
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Problems solved by technology

While the miter door works in the water environment, the huge water pressure difference on both sides of the miter door and the extrusion of the water flow during the opening and closing of the miter door will cause damage to the optical fiber crack sensor and the bare fiber, thereby destroying the detection system, and the miter door The crack-prone areas of the door are relatively scattered, and the wiring needs to be collected and protected reasonably

Method used

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  • Method for constructing fiber crack sensor on miter gate
  • Method for constructing fiber crack sensor on miter gate

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Embodiment Construction

[0026] The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings: It should be understood that the preferred embodiments are only for illustrating the present invention, rather than limiting the protection scope of the present invention. Such as Figure 1-2 Shown, a kind of construction method of miter gate optical fiber crack sensor is characterized in that: comprise the following steps:

[0027] A. Surface treatment of crack detection area

[0028] Determine the crack detection area, and polish the steel plate in the crack detection area, remove the attachments and anti-corrosion paint on the surface of the steel plate, expose the conductive layer, and make the surface smooth;

[0029] B. Determine the location of the fiber optic layout

[0030] Determine the interval d between adjacent optical fibers according to the accuracy requirements of the fixed length of the crack, and determine the angle θ be...

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Abstract

The invention discloses a method for constructing a fiber crack sensor on a miter gate. The method refers to the installation, fixing, and protection of a fiber crack detection sensor on a miter gate body and the collecting, layout and follow-up protection of the fiber routing. According to the invention, the method includes the following steps: conducting surface processing on a crack detection area; determining places for fiber layout; conducting fiber layout; sealing rigid a rigid protection box; and connecting wire to a monitoring room. According to the invention, compared with traditional crack detection systems, the method herein adopts a rigid protection box to cover and is filed with an elastic glue and uses acrylates AB glue to layout a fiber, so that the method can effectively protect the fiber crack sensor and the detected fiber, and can optimize the routing of layout at a preset angle in a reasonable manner. According to the invention, the method considers the distinctiveness of complex water environment, takes less space, is efficient to use resources, and can measure cracks in during follow-up crack detection.

Description

technical field [0001] The invention relates to the technical field of hydraulic metal structure health detection, in particular to an optical fiber crack sensor of an online crack detection system for a miter door. Background technique [0002] The construction method of the miter door crack online detection system mainly involves the installation, fixing and protection of the optical fiber crack sensor on the miter door body and the collection, layout and protection of the optical fiber routing; the traditional crack detection system is often applied to concrete structures such as bridges , In civil engineering, and the routing of optical fibers is directly cured inside the concrete, there is no need to consider subsequent protection, the detection area is relatively concentrated, and there is no need to specifically consider the collection of routing. While the miter door works in the water environment, the huge water pressure difference on both sides of the miter door an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01D5/26
CPCG01D5/268
Inventor 乌旭熊木地柳博仁王莹
Owner DALIAN MARITIME UNIVERSITY
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