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Iron-carbon alloy film polymer fiber optical corrosion sensor and preparation method thereof

A technology for corrosion sensors and iron-carbon alloys, which is applied in the fields of weather resistance/light resistance/corrosion resistance, instruments, scientific instruments, etc. It can solve complex problems, high-level production materials and processes, and achieve high sensitivity, easy production, and good adaptability Effect

Pending Publication Date: 2018-06-19
XI AN JIAOTONG UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Single-mode polymer optical fibers with transmission loss less than 0.3dB / km have been reported, but the materials and processes are relatively high and complicated

Method used

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  • Iron-carbon alloy film polymer fiber optical corrosion sensor and preparation method thereof
  • Iron-carbon alloy film polymer fiber optical corrosion sensor and preparation method thereof
  • Iron-carbon alloy film polymer fiber optical corrosion sensor and preparation method thereof

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preparation example Construction

[0058] A preparation method of an iron-carbon alloy film polymer optical fiber corrosion sensor, comprising the following steps:

[0059] S1. Take a section of commercially available polymer optical fiber, use a blade to remove the coating layer of the optical fiber, and the length of the exposed cladding and fiber core is 6-10 cm;

[0060] From the point of view of the manufacturing process of the sensor, it is generally hoped that the thicker the optical fiber, the better. An optical fiber that is too thin is prone to breakage during the manufacturing process. But judging from the actual production process, as long as it is operated properly, thin optical fibers can also achieve better results. Moreover, the thick optical fiber also has the characteristics of poor flexibility and not easy to bend. Therefore, it is not advisable to use too thick or too thin optical fibers in the sensor manufacturing process. Therefore, the present invention adopts a polymer optical fiber wi...

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Abstract

The invention discloses an iron-carbon alloy film polymer fiber optical corrosion sensor and a preparation method thereof. The fiber optical corrosion sensor comprises a fiber core, wherein one end outside the fiber core is wrapped with a cladding layer; one end outside the cladding layer is wrapped with a coating layer; a metal layer is adopted for modifying the surface of the other end outside the fire core; an alloy sensitive film is arranged on the surface of the metal layer and is an Fe-C alloy sensitive film. The sensor prepared in the invention is simple in structure, reasonable in design, easy to manufacture, high in sensitivity, high in precision, excellent in environmental suitability and capable of realizing non-contact nondestructive monitoring and reaching high-density detection and high-speed transmission, and has the unique advantage That the use is simple and convenient.

Description

technical field [0001] The invention belongs to the technical field of optical fiber corrosion sensor and its manufacture, and in particular relates to an iron-carbon alloy film polymer optical fiber corrosion sensor and a preparation method thereof. Background technique [0002] With the country's investment in infrastructure gradually increasing, reinforced concrete has become the most widely used building material in the world today based on many advantages. It is very important to fully understand the role of steel bars in concrete structures, the hazards caused by steel bar corrosion, the importance of steel bar corrosion monitoring, and many other issues to ensure the safe operation of these building structures. Among them, the corrosion of steel bars in concrete structures leads to premature failure of concrete structures, which is the primary reason affecting the durability of concrete. Moreover, the corrosion of steel bars will lead to a decrease in the bearing cap...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N17/00
CPCG01N17/006
Inventor 罗冬李跃进李鹏刘唐旻贾立统戴杰李俊楠李媛媛
Owner XI AN JIAOTONG UNIV
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