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Intelligent optical fiber sensing skin and preparation and usage methods thereof

A smart optical fiber and sensing technology, applied in the field of sensor transmission, can solve problems such as difficult replacement and inability of optical fiber sensors to withstand harsh environments

Pending Publication Date: 2019-01-25
北京百世通管道科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem that the optical fiber sensor in the prior art is not suitable for various harsh environments and is not easy to replace, the present invention proposes an intelligent optical fiber sensor skin and its preparation and use method

Method used

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  • Intelligent optical fiber sensing skin and preparation and usage methods thereof
  • Intelligent optical fiber sensing skin and preparation and usage methods thereof
  • Intelligent optical fiber sensing skin and preparation and usage methods thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] A kind of intelligent optical fiber sensing skin of the present embodiment, such as figure 1 As shown, it includes a sensing fiber 1 and a light-cured fiber-reinforced composite rubber blanket 2 , and the sensing fiber 1 is packaged inside the light-cured fiber-reinforced composite rubber blanket 2 . The light-cured fiber-reinforced composite rubber mat 2 is in the shape of a flat strip, and the base material is a light-curable resin 3. In this embodiment, it is an ultraviolet light-curable resin, and fibers 4 (or fiber mats) are filled in the light-curable resin as a reinforcing material. In 3, the fibers or fiber mats commonly used for reinforcement in the field can be used.

[0040] According to different monitoring physical quantities, the sensing optical fiber 1 can be a single-mode optical fiber or a multi-mode optical fiber. When monitoring a strain less than 20 microstrain units, a tight-packed optical fiber is used; when monitoring a strain greater than 20 micr...

Embodiment 2

[0047] Compared with Example 1, further on the front side of the intelligent optical fiber sensing skin, that is, the side pasted with the monitored object, a layer of transparent front film 5 is set to protect and prevent sticking hands before use, and the transparent film 5 will be used during use. After tearing off the front film, paste it on the surface of the monitored object.

[0048] On the reverse side of the light-cured protective layer, that is, the side that is not pasted with the monitored object and faces the light source during use, a transparent reverse film 6 can be pasted, which can facilitate production, packaging and construction, avoid sticking hands, and do not need to be torn off during use.

Embodiment 3

[0050] The difference from Example 2 is that the opaque reverse film 6 is pasted on the reverse side of the light-cured protective layer, which can further prolong the construction time and avoid curing in advance due to sunlight irradiation before the complete finalization. If rapid curing is required, light-cured Then the opaque light-shielding reverse film 6 should be torn off in time before.

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Abstract

The invention relates to an intelligent optical fiber sensing skin and preparation and usage methods thereof. The intelligent optical fiber sensing skin comprises a sensing optical fiber and a photo-curing fiber reinforced composite rubber felt, the photo-curing fiber reinforced composite rubber felt encapsulates the sensing optical fiber, the photo-curing fiber reinforced composite rubber felt isin the shape of a flat strip, the base material is a light-cured resin capable of being adhered to the surface of a monitored object through photo-curing, fibers and / or fiber felts are immersed therein, and corresponding preparation and usage methods are adopted according to two conditions that the photo-curing fiber reinforced composite rubber felt encapsulates the sensing optical fiber at the internal part and on the surface thereof and on the surface of the monitored object. The intelligent optical fiber sensing skin is insulated, corrosion-resistant, and seepage-resistant, the material isnot combustible and resistant in a temperature range of -50 to +180 DEG C, the intelligent optical fiber sensing skin can be applied to different environments, defects of low survival rate and failure of replacement after damage during pre-embedding of optical fiber sensors in concrete of reservoir dams, bridges and building foundations are overcome, and the service lifetime is longer than 10 years.

Description

technical field [0001] The invention relates to an intelligent optical fiber sensor, in particular to an intelligent optical fiber sensing skin and a preparation and use method thereof, belonging to the field of sensor transmission. Background technique [0002] The optical fiber sensor is a sensor that converts the state of the measured object into a measurable optical signal. The optical properties of light, such as light intensity, wavelength, frequency, phase, polarization state, etc., change to become modulated optical signals, which are sent to optical detectors through optical fibers, and the measured parameters are obtained after demodulation. Optical fiber has many excellent properties, such as: anti-electromagnetic and atomic radiation interference performance, thin diameter, light weight mechanical properties; insulation, non-inductive electrical properties; water resistance, high temperature resistance, corrosion resistance chemical properties, etc., it can In p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01D5/26
CPCG01D5/26G01D5/268
Inventor 缪宏钱福群司辉李杰锋朱新民周抗冰乔小瑞缪文韬
Owner 北京百世通管道科技有限公司
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