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8-shaped low-addition decay type optical cable

An attenuation type, optical cable technology, applied in the direction of fiber mechanical structure, etc., can solve the problem of no electric pole steel wire rope, etc., achieve good environmental adaptability, broad market application prospects, and reduce the effect of additional attenuation

Inactive Publication Date: 2013-06-19
XIAN JINHE OPTICAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In addition, ordinary optical cables need to be suspended on steel wire ropes between electric poles when erected, but in many actual optical fiber sensing projects, there are no electric poles and corresponding steel wire ropes, and optical cables can only be erected by trees, etc.

Method used

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  • 8-shaped low-addition decay type optical cable

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Embodiment Construction

[0026] Such as figure 1 An "8"-shaped low additional attenuation optical cable is shown, including a cable core and a suspension wire, the cable core and the suspension wire are connected by a suspender 7, and the cable core includes a strengthening member 1, an outer sheath 5 and a transmission optical fiber 4. The suspension wire includes reinforcement two 8 and outer sheath two 9, the reinforcement one 1 is made of non-metallic high-strength fibers, and the periphery of the reinforcement one 1 is provided with a A cylindrical body 2 extending longitudinally and made of polymer material. There is at least one groove 3 on the outer surface of the cylindrical body 2, and at least one transmission optical fiber 4 is placed in the groove 3. On the cylindrical body 1 The periphery is an outer sheath one 5 made of polymer material, and the reinforcement two 8 is made of non-metallic high-strength fibers. The non-metallic high-strength fiber is aramid fiber, glass fiber, poly-p-ph...

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Abstract

The invention discloses an 8-shaped low-addition decay type optical cable which comprises a cable core and a suspension wire, wherein the cable core is connected with the suspension wire through a suspension band, the cable core comprises a first reinforcement piece, a first outer protection layer and transmission optical fibers, the suspension wire comprises a second reinforcement piece and a second outer protection layer, the first reinforcement piece is made of non-metal high-strength fibers, a column body is arranged on the periphery of the first reinforcement piece, the column body is tightly combined with the first reinforcement piece, longitudinally extends along the first reinforcement piece, and is made of macromolecule materials, at least one groove is formed in the outer surface of the column body, at least one transmission optical fiber is placed inside the groove, the first outer protection layer which is made of the macromolecule materials is arranged on the periphery of the column body, and the second reinforcement piece is made of the non-metal high-strength fibers. The 8-shaped low-addition decay type optical cable has the advantages of being simple in structure, reasonable in design, low in cost, flexible in use mode, good in use effect, capable of effectively reducing additional decay changes, caused by environmental factors, of the transmission fibers, and wide in market application prospect.

Description

technical field [0001] The invention relates to an optical cable, in particular to an "8"-shaped optical cable with low additional attenuation. Background technique [0002] There are many types of fiber optic sensors, among which the intensity-adjustable fiber optic sensor has the advantages of simple structure, reliable operation and low price. But compared with other types of fiber optic sensors, the main disadvantage of intensity modulation fiber optic sensors is that they are susceptible to environmental interference. Among them, the impact of environmental parameters on the sensor is an important aspect. The most common is a change in ambient temperature. The light source, the delivery fiber in the cable, and the photodiode all change with temperature. The light source and photodiode are generally located in the test room, and their temperature can be controlled within a certain range, and can be compensated by setting the reference fiber channel. Additional attenu...

Claims

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Application Information

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IPC IPC(8): G02B6/44
Inventor 杜兵
Owner XIAN JINHE OPTICAL TECH
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