Unlock instant, AI-driven research and patent intelligence for your innovation.

Optical fiber sensing steel cable and production method thereof

A manufacturing method, steel sensing technology, applied in textiles, papermaking, textile cables, etc., can solve problems such as failure to analyze steel cable fatigue

Active Publication Date: 2018-09-28
FENGHUO COMM SCI & TECH CO LTD
View PDF8 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The limitation of this method is that the quality change of the steel cable can only be perceived when the electrical signal changes after the cable breaks, and it is impossible to accurately analyze the fatigue of the cable before the cable breaks.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Optical fiber sensing steel cable and production method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] see figure 1 As shown, the embodiment of the present invention provides an optical fiber sensing cable, which includes an optical unit 1, an electrical unit 2 and a steel wire armor layer 3; the optical unit 1 includes a tight sleeve layer 11 and at least one optical fiber 10; all optical fibers 10 as a whole, a tight sleeve layer 11 is sheathed on its periphery; the electric unit 2 is twisted on the periphery of the optical unit 1; the electric unit 2 includes a data line 20 and an even number of power lines 21; the steel wire armor layer 3 is twisted on the electric unit 2 periphery, and its twisting direction is the same as that of electrical unit 2.

[0032] The optical fiber sensing cable provided by the embodiment of the present invention contains an optical unit 1 and at least one electrical unit 2 . Optical unit 1 adopts continuous distributed real-time measurement, which has long monitoring distance, long service life, good anti-interference and reliability, a...

Embodiment 2

[0037] see figure 1 As shown, the embodiment of the present invention provides an optical fiber sensing cable. The difference between this embodiment and Embodiment 1 is that the optical unit 1 also includes a low friction coefficient coating 12, and the low friction coefficient coating 12 is coated on the tight sleeve Layer 11 outer surface. The low-friction coefficient coating 12 adopts heat-curing or light-curing paint, such as heat-curing silicone rubber, light-curing acrylic epoxy resin. The function of the low friction coefficient coating 12 is to reduce friction, improve air blowing efficiency, increase duty cycle, and ensure that the lengths of the optical fiber and the protection tube are equal, so that the deformation rate of the optical fiber and the detection cable are the same.

Embodiment 3

[0039] seefigure 1 As shown, the embodiment of the present invention provides an optical fiber sensing cable. The difference between this embodiment and Embodiment 2 is that the optical unit 1 further includes a protection tube 13 , and the protection tube 13 is sheathed on the periphery of the low friction coefficient coating 12 . The protection tube 13 can be made of metal, such as stainless steel tube or aluminum-clad steel tube, to protect the optical fiber coated with the low-friction coefficient coating 12, and to withstand the tensile force and lateral pressure during the cable processing process and after construction and deployment.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses an optical fiber sensing steel cable and a production method thereof. The optical fiber sensing steel cable comprises an optical unit, electric units and a steel wire armor layer, wherein the optical unit comprises a tight jacket layer and at least one optical fiber; all the optical fibers are regarded as a whole, and the periphery of the optical fiber is sleeved with the tight jacket layer; the electric units are twisted on the periphery of the optical unit; each electric unit comprises data lines and even-numbered power lines, the periphery of the data lines is wrapped with a protection layer, and the periphery of the power lines is wrapped with an insulating layer; the steel wire armor layer is twisted on the periphery of the electric units, and the twisting direction of the steel wire armor layer is the same as that of the electric units. The strain, creep and fatigue conditions of the steel cable can be analyzed before the steel cable is damaged, so that the service life and the fracture probability of the steel cable can be evaluated accurately.

Description

technical field [0001] The invention relates to the fields of optical fiber sensing and engineering machinery and its manufacture, in particular to an optical fiber sensing steel cable and a manufacturing method thereof. Background technique [0002] A steel rope is a flexible rope twisted from multiple or multiple thin steel wires. It is characterized by high strength, light weight, stable operation, not easy to break the whole root suddenly, and reliable operation. It is mainly used as tensile components such as lifting, traction, tensioning and bearing. Widely used in bridges, mines, drilling platforms, docks, cableways and heavy machinery manufacturing and other fields. [0003] Damage and fatigue detection of steel cables is crucial. Taking a large steel cable structure bridge as an example, the breaking life of the steel cables carrying the weight of the bridge is usually less than 20 years. During the entire life of the bridge, the steel cables will be broken or rep...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): D07B1/14D07B1/16
CPCD07B1/145D07B1/162D07B2205/2014D07B2205/2039D07B2205/2046D07B2205/2064D07B2205/2075D07B2801/22
Inventor 王世颖陈成廖伟章陈鸿刘思源付靖宜
Owner FENGHUO COMM SCI & TECH CO LTD