Elastic extensible spiral sensing optical cable

A sensing optical cable and spiral technology, applied in the field of optical communication sensing, can solve the problems of poor elasticity and scalability, damage and limitations of optical cables, and achieve the effect of reasonable setting, small size and light weight

Inactive Publication Date: 2016-05-04
YANGTZE OPTICAL FIBRE & CABLE CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Sensing optical cables are increasingly widely used due to their wide sensing range and high sensitivity. However, the existing sensing optical cables are all linear optical cables, which have poor elasticity and scalability. loss, limited applications in some fields

Method used

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  • Elastic extensible spiral sensing optical cable
  • Elastic extensible spiral sensing optical cable
  • Elastic extensible spiral sensing optical cable

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Embodiment Construction

[0019] The present invention will be further described below in combination with specific embodiments.

[0020] The first embodiment of the present invention is figure 1 , 3 As shown, it includes an outer sheath and an optical fiber unit wrapped in the outer sheath. The outer sheath is in the shape of a helical coil with an equal diameter, and the radial cross-section outer circumference of the outer sheath 3 is rectangular, and the long side of the rectangle is in line with the The radial direction of the spiral coil is the same, the ratio of the short side to the long side of the radial cross section of the rectangular outer sheath is 3.5:5 (70%), and the inner hole of the radial cross section of the outer sheath is elliptical The direction of the major axis of the ellipse is the same as the direction of the long side of the outer peripheral rectangle. The inner hole of the ellipse contains 6 micro-cluster tubes 2, and each micro-cluster tube is coated with 12 optical fiber...

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Abstract

The invention relates to an elastic extensible spiral sensing optical cable which comprises an outer sheath and an optical fiber unit wrapped with the outer sheath. The elastic extensible spiral sensing optical cable is characterized in that the outer sheath is in a spiral coil shape, the circumference of the radial cross section of the outer sheath is rectangular, and the long edges of the rectangle are in the radial direction. The elastic extensible spiral sensing optical cable has the excellent elastic extending and bending performance, and can spring back, stretch and retract within a short time. Being used as a sensing optical cable, the elastic extensible spiral sensing optical cable has the excellent fluctuation conduction property due to the high-elasticity spiral structure, and the sensing property of the sensing optical fiber can be further broadened. An inner hole of the outer sheath is in an oval shape, the optical fiber unit has the enough loosening space even under the small outer diameter, the optical fiber has the good high and low temperature performance, and optical fiber signal transmission reliability is ensured. The elastic extensible spiral sensing optical cable has the excellent flame resistance, oil resistance, and liquefied gas and coal gas corrosion resistance, the reliability of the optical cable is effectively improved, the service life of the optical cable is effectively prolonged, the full-dry structure is achieved, all the units are reasonable in arrangement, and the optical cable is small in size, low in weight and convenient to use.

Description

technical field [0001] The invention relates to an elastic and expandable spiral sensing optical cable, which belongs to the technical field of optical communication sensing. Background technique [0002] Sensing optical cables are increasingly widely used due to their wide sensing range and high sensitivity. However, the existing sensing optical cables are all linear optical cables, which have poor elasticity and scalability. loss, the application is limited in some fields. With the development of precision instruments such as aerospace and information sensing, higher requirements are placed on the bending and stretching performance of sensing cables. Contents of the invention [0003] The technical problem to be solved by the present invention is to propose an elastically stretchable spiral sensing optical cable for the above-mentioned deficiencies in the prior art, which not only has strong elastic stretchability, but also has excellent wave conduction characteristics....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B6/44
CPCG02B6/443G02B6/4436
Inventor 李闽刚蔡晶卢星星熊壮
Owner YANGTZE OPTICAL FIBRE & CABLE CO LTD
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