Photoelectric composite temperature-sensing optical cable

Abstract

The invention discloses a photoelectric composite temperature-sensing optical cable, and the optical cable comprises a loose tube and a loose tube protection layer. The loose tube and the loose tube protection layer are sequentially set from the inside to the outside. The interior of the loose tube is provided with an optical fiber, and there is fiber paste between the optical fiber and the loose tube. The interior of the loose tube protection layer is also provided with a plurality of metal conductors parallel to the optical fiber in a passing-through manner. According to the invention, the interior of the loose tube protection layer is provided with the conductors for conduction, thereby enabling the optical cable to have a part of conduction function of a cable. The optical cable meets the demands of temperature monitoring while certain power supply in some independent or remote areas, and reduces the construction cost. Meanwhile, the conductors also provide tensile forces for the optical cable, thereby saving an inner nonmetal tensile layer, improving the thermal conduction effect, and improving the temperature-sensing efficiency of the optical cable.

Description

technical field [0001] The invention relates to the field of optical cable manufacturing, in particular to a photoelectric composite temperature-sensing optical cable. Background technique [0002] With the continuous development of optical communication technology and industry, optical sensing technology has been widely used in various industries such as coal mining, electric power, fire safety and people's livelihood instead of traditional electronic sensing technology. Compared with traditional electronic sensors, optical fiber sensors have a series of advantages: high sensitivity, corrosion resistance, large transmission capacity, strong anti-electromagnetic interference ability, simple structure, small size, light weight, and low power consumption. [0003] The existing temperature-sensing optical cable cannot take into account the conductive function; for some isolated or remote areas that need to monitor the temperature and have a certain power supply, such as coal mi...

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Problems solved by technology

[0004] In view of the above problems, the present invention proposes a photoelectric composite temperature-sensing optical cable, which solves the defect that the existing temperature-sensing optical cable cannot have both conductive functions, resulting in high construction costs

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