Optical-electrical composite cable for distributed optical fiber hydrophone system
A technology of optoelectronic composite cable and distributed optical fiber, which is applied to power cables, power cables, insulated cables and other directions including optical transmission elements, can solve the problems of the acoustic wave sensitivity not meeting the requirements of hydrophones and the large amount of acoustic wave conduction loss, etc. Achieve the effects of low energy loss, improved sound pressure sensitivity, and enhanced detection sensitivity
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Embodiment 1
[0047] A kind of photoelectric composite cable used for distributed optical fiber hydrophone system provided by the preferred embodiment of the present invention, such as figure 1 As shown, the photoelectric composite cable includes a rigid inner support layer 102, a polymer flexible material layer 103, an elastic layer 104, an ointment layer 105, and an outer sheath 106 from the inside to the outside. At least one optical fiber 100, different optical fibers do not overlap, the optical fiber 100 is tightly wrapped with a grease layer 105, the rigid inner support layer 102 is an insulating material, and an inner conductive metal wire 101 is arranged inside the rigid inner support layer 102, The number of conductive metal wires 101 can be two or more according to different power supply requirements.
[0048] Optical fiber 100 is a tightly jacketed optical fiber. figure 2 A schematic cross-sectional view of an optical fiber 100 with a tight sheath is shown, including a bare opt...
Embodiment 2
[0054] A kind of photoelectric composite cable used for distributed optical fiber hydrophone system provided by the preferred embodiment of the present invention, such as image 3 As shown, on the basis of Embodiment 1, a metal wire 301 is added to the ointment layer 105 and helically twisted together with the optical fiber 100 with a tight sheath. One or more wires are arranged in a staggered manner, or the metal wires 301 and the optical fibers 100 are respectively arranged in sequence, and then the metal wires 301 and the optical fibers 100 are wound in the same direction. The spacing between optical fibers and metal wires is the same as that in Embodiment 1, and the spacing between different optical fibers and metal wires can be different or the same within the scope of satisfying the pitch. During the stranding process, the metal wire 301 does not contact the sheathed optical fiber 100, and there is no contact between different metal wires. This structure increases the o...
Embodiment 3
[0058] A kind of photoelectric composite cable used for distributed optical fiber hydrophone system provided by the preferred embodiment of the present invention, such as Figure 5 As shown, the photoelectric composite cable sequentially includes an air layer 501, a rigid inner support layer 102, a polymer flexible material layer 103, an elastic layer 104, a grease layer 105 and an outer sheath 106 from the inside to the outside;
[0059] At least one sheathed optical fiber 100 and metal wire 301 are tightly and spirally wound on the outer wall of the elastic layer 104, the optical fiber 100 and the metal wire 301 are arranged in a staggered manner, and different optical fibers 100 do not overlap, and the metal wire 301 does not overlap with the ribbon. The optical fibers 100 of the sheath are in contact, and there is no contact between different metal wires 301, and the metal wires 301 have an insulating layer. The optical fiber 100 and the metal wire 301 are tightly wrapped ...
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Abstract
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Application Information
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