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System and method for preparing optical fiber Bragg grating smart bar

A fiber grating and preparation system technology, which is applied in the coupling of optical waveguides, the measurement of the change force of the optical properties of materials when they are stressed, and the use of optical devices, etc., to achieve excellent embedding effects and simple processing procedures.

Active Publication Date: 2013-06-19
SHANGHAI KNP CHEM +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are relatively few reports on the continuous production of fiber grating composite smart ribs

Method used

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  • System and method for preparing optical fiber Bragg grating smart bar
  • System and method for preparing optical fiber Bragg grating smart bar
  • System and method for preparing optical fiber Bragg grating smart bar

Examples

Experimental program
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Effect test

Embodiment 1

[0030] Example 1: Please also refer to Figure 1 to Figure 5 , figure 1 For the present invention is not provided with the system structural diagram of drying tunnel, figure 2 is the cross-sectional structure diagram of the combined die head, image 3 is the cross-sectional structure diagram of the compression molding die, Figure 4 It is a structural schematic diagram of the finished fiber grating composite material smart rib manufactured by the present invention, Figure 5 It is a cross-sectional view of the structure of the finished fiber grating composite intelligent rib manufactured by the present invention. The preparation system of fiber Bragg grating composite smart ribs in this example includes fiber creel 1 through which fiber bundles pass sequentially, material guide 2, resin tank 3, bundler 4, combined die head 5, compression molding die 7, and traction device 8. Cutting device 9, wherein the fiber grating 6 is implanted in the fiber bundle, wherein the combin...

Embodiment 2

[0036] Embodiment 2: refer to figure 1 , figure 2 and image 3 , among which, in figure 1 After the compression molding mold, a drying tunnel is added (the diagram of the drying tunnel is omitted), and the fiber grating composite smart rib molding body 72 made by the compression molding mold 7 is heated and cured in the drying tunnel to achieve a good heating and curing effect.

[0037] As an improvement, the compression molding die 7 also has a joint processing structure, which can process the two ends of the formed body into a formed body with a joint. The processed shape of the joint can be a threaded shape, a buckle shape, Groove shape, etc., so as to facilitate the connection between the fiber grating composite smart rib and the object under test.

[0038] The fiber grating composite smart rib finished product made by the technical scheme of the present invention is as follows: Figure 4 , Figure 5 As shown, there are connectors 61 processed into threaded shapes at...

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Abstract

The invention discloses a system for preparing an optical fiber Bragg grating (OFBG) smart bar. The system comprises a fiber creel, a material guider, a resin bath, a buncher, a combination die head, a compression moulding die, a traction device, a cutting device and a fiber grating built in a fiber bundle; the combination die head is formed by two semicircular sections; the compression moulding die comprises a female die and a male die; and the female die and the male die are correspondingly provided with a groove and a bulge respectively. The invention also discloses a method for preparing the OFBG smart bar by using the system, and the method mainly adopts a way of organically combining pultrusion with compression moulding. The invention has the advantages of simple process and good embedding effect and enables continuous production of the materials at the same time.

Description

【Technical field】 [0001] The invention relates to a preparation system for a composite material intelligent tendon, in particular to a preparation system for an optical fiber grating composite material intelligent tendon applied to stress strain and temperature measurement of engineering structure materials. [0002] At the same time, the invention also relates to a preparation method of the fiber grating composite smart rib. 【Background technique】 [0003] For safety reasons, the effective service life of many large-scale civil engineering and infrastructure is the focus of attention. Considering that the design life of many bridges, buildings, water conservancy facilities, etc. are decades or even hundreds of years, in order to monitor the application and service of large-scale civil engineering online for a long time and during construction, fiber grating sensors are used as a kind of excellent performance Inductive elements are gradually being widely used. [0004] The...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B6/44G02B6/34G01L1/24G01B11/16G01K11/32B29C70/52B29C70/54G01K11/3206
Inventor 张杰张静郑炜何唯平
Owner SHANGHAI KNP CHEM