Special optical cable, preparation method and sensing equipment with special optical cable

By designing the layer-by-layer enhanced structure and modified nanomaterials of special optical cables, the performance problems of optical fiber cables in high temperature environments are solved, and the high temperature resistance and bending and compression resistance of optical cables are improved, and are suitable for aviation structure health monitoring and data storage.

CN120507848AActive Publication Date: 2025-08-19FURUKAWA ELECTRIC XIAN OPTICAL COMM
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Patent Information

Application Number
CN202511001059.7
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-07-21
Publication Date
2025-08-19
Estimated Expiration
2045-07-21

AI Technical Summary

Technical Problem

Existing fiber optic cables are prone to softening, yellowing, and cracking in high temperature environments, which cannot meet the requirements of special application scenarios such as aviation, and the performance of transmission cables has not been disclosed.

Method used

A special optical cable is designed, including an optical fiber body from the inside to the outside, a high-temperature resistant coating layer, a primary buffer layer, a secondary buffer layer, a reinforcement layer and a sheath layer. The coating layer is equipped with an inner layer, a transition layer and an outer layer from the inside to the outside, and a layer-by-layer reinforcement scheme of three coatings is adopted, and a microstructure is designed on the outer surface of the high-temperature resistant coating layer, combining modified nanomaterials and high-strength fiber materials to improve high-temperature, bending and compressive resistance.

Benefits of technology

It has achieved significant improvement in the high temperature resistance and bending and compression resistance of optical cables, and has excellent properties such as lightweight, fast thermal conductivity, radiation resistance, strong electric field and strong magnetic field environment, high wear resistance, flame retardant, corrosion resistance, etc. It is suitable for structural health monitoring equipment, and realizes accurate monitoring and storage of aircraft structural parameters.

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Abstract

The invention discloses a special optical cable, a preparation method and sensing equipment with the special optical cable, the special optical cable comprises an optical fiber body, a high-temperature-resistant coating layer, a primary buffer layer, a secondary buffer layer, a reinforcer layer and a sheath layer which are sequentially arranged from inside to outside, and the high-temperature-resistant coating layer comprises an inner layer, a transition layer and an outer layer which are sequentially arranged from inside to outside. By designing the transition layer, efficient combination of the inner layer and the outer layer is achieved, the layering problem is avoided, and the high temperature resistance, bending resistance, compression resistance and other performance of the optical cable are remarkably improved; the special optical cable has the advantages of light weight, high temperature resistance, fast heat conduction, strong electric field and strong magnetic field environment resistance, bending resistance, compression resistance, high heat sensitivity, high mechanical property, high wear resistance, flame retardance, radiation resistance, corrosion resistance and the like, and is suitable for being applied to structural health monitoring equipment with anti-electromagnetic interference. The temperature, vibration and other parameters of the surface structure of an object or a material are monitored and stored, and the system serves for structural health monitoring and data storage of an aircraft in a flight environment.
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