Stress strain temperature measuring cable and manufacturing method thereof

A technology of stress-strain and temperature measurement, which is applied in the direction of fluid pressure measurement, measurement device, and measurement of fluid pressure using optical methods. The effect of reducing the cost of use

Pending Publication Date: 2022-01-21
CHONGQING TAISHAN CABLE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] When the traditional strain force optical cable is used to detect the force, because the force between the sheath and the sheath cannot be synchronized in time, glue is applied inside to ensure the synchronization of the force. However, the use of the optical cable often takes ten years. For a long time, the glue is prone to degumming and drying, which makes the force inconsistent when it is transmitted.

Method used

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  • Stress strain temperature measuring cable and manufacturing method thereof
  • Stress strain temperature measuring cable and manufacturing method thereof
  • Stress strain temperature measuring cable and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Stress and strain temperature measurement cable, including single-mode optical fiber 5, tight-wrapped optical fiber 1 and multi-mode optical fiber 6, single-mode optical fiber 5 and multi-mode optical fiber 6 are respectively provided with threaded loose sleeve steel pipe 4, and tight-wrapped optical fiber 1 is provided with G- FRP armor reinforcement 2, G-FRP armor reinforcement 2 are equipped with EVA3 on both sides, threaded loose sleeve steel pipe 4 and G-FRP armor reinforcement 2 is extruded with semi-conductive PE sheath 7.

[0032] Tight-wrapped fiber 1 is connected with G-FRP armor reinforcement 2 through EVA3, and semi-conductive PE sheath 7 is connected with G-FRP armor reinforcement 2 through EVA3. The outer diameter of the long, tight-packed optical fiber 1 is 0.45 mm.

[0033] The G-FRP armor reinforcement 2 is twisted on the periphery of the tight-packed optical fiber 1 in a unidirectional "S" shape. The outer diameter of the G-FRP armor reinforcement 2 is...

Embodiment 2

[0043] Stress and strain temperature measurement cable, including single-mode optical fiber 5, tight-wrapped optical fiber 1 and multi-mode optical fiber 6, single-mode optical fiber 5 and multi-mode optical fiber 6 are respectively provided with threaded loose sleeve steel pipe 4, and tight-wrapped optical fiber 1 is provided with G- FRP armor reinforcement 2, G-FRP armor reinforcement 2 are equipped with EVA3 on both sides, threaded loose sleeve steel pipe 4 and G-FRP armor reinforcement 2 is extruded with semi-conductive PE sheath 7.

[0044] Tight-wrapped fiber 1 is connected with G-FRP armor reinforcement 2 through EVA3, and semi-conductive PE sheath 7 is connected with G-FRP armor reinforcement 2 through EVA3. The outer diameter of the long, tight-packed optical fiber 1 is 0.4 mm.

[0045]The G-FRP armor reinforcement 2 is twisted in a unidirectional "S" on the periphery of the tight-packed optical fiber 1. The outer diameter of the G-FRP armor reinforcement 2 is 0.35mm,...

Embodiment 3

[0055] Stress and strain temperature measurement cable, including single-mode optical fiber 5, tight-wrapped optical fiber 1 and multi-mode optical fiber 6, single-mode optical fiber 5 and multi-mode optical fiber 6 are respectively provided with threaded loose sleeve steel pipe 4, and tight-wrapped optical fiber 1 is provided with G- FRP armor reinforcement 2, G-FRP armor reinforcement 2 are equipped with EVA3 on both sides, threaded loose sleeve steel pipe 4 and G-FRP armor reinforcement 2 is extruded with semi-conductive PE sheath 7.

[0056] Tight-wrapped fiber 1 is connected with G-FRP armor reinforcement 2 through EVA3, and semi-conductive PE sheath 7 is connected with G-FRP armor reinforcement 2 through EVA3. The outer diameter of the long, tight-packed optical fiber 1 is 0.5 mm.

[0057] The G-FRP armor reinforcement 2 is twisted in a unidirectional "S" on the periphery of the tight-packed optical fiber 1. The outer diameter of the G-FRP armor reinforcement 2 is 0.45mm...

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Abstract

The invention discloses a stress strain temperature measurement cable, which comprises a single-mode optical fiber, a tightly-packaged optical fiber and a multimode optical fiber, wherein thread loose tube steel tubes are respectively arranged outside the single-mode optical fiber and the multimode optical fiber, a G-FRP armored reinforcement is arranged outside the tightly-packaged optical fiber, EVA is arranged on two sides of the G-FRP armored reinforcement, and a semi-conductive PE sheath is extruded outside the thread loose tube steel tubes and the G-FRP armored reinforcement. The method comprises the following steps: extruding EVA to the surface of G-FRP; twisting the G-FRP with the EVA coating on the tightly packaged optical fiber; twisting the single-mode optical fiber and the multimode optical fiber respectively by the threaded loose tube; when the threaded loose tube, the G-FRP armored reinforcement and the semi-conductive PE sheath are extruded, performing tube extrusion on the threaded loose tube, and full-extraction on the G-FRP armored reinforcement. In this way, the three-in-one optical cable can be filled in a gap in the cable, and long-time stress consistency can be maintained.

Description

technical field [0001] The invention relates to the field of optical cables, in particular to a stress-strain temperature measuring cable and a manufacturing method thereof. Background technique [0002] With the rapid development of cities and the large-scale application of various types of cables in my country, cable accidents are increasing year by year due to the surrounding complex application environment and human factors. Therefore, how to design an optical cable that can be built into the cable so that it can simultaneously monitor temperature, vibration, and strain to ensure the stability of the cable during production, construction, and use has become our current power cable built-in sensor. The key points of research and analysis of optical cable technology. [0003] At present, to simultaneously monitor the temperature, vibration and strain of cables, three types of optical cables with different structures are required. They are used in the transmission of power...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01L11/02G01B11/16G01H9/00
CPCG01L11/025G01B11/18G01H9/006
Inventor 张亚王章军刘世力
Owner CHONGQING TAISHAN CABLE
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