Fabrication method of polymer fiber Bragg grating strain sensor and smart cable

Abstract

The invention discloses a manufacturing method of a polymer leather fiber grating strain sensor and an intelligent cable. Pull cable and make finished cable; The present invention utilizes the optical fiber grating sensor of leather wire optical cable to obtain integrated with the fiber Bragg grating sensor of leather wire optical cable through photolithography process, sticks with polymer block to form polymer fiber Bragg grating strain sensor of leather wire, and its reflection wavelength and strain have Linear relationship, it has photosensitive characteristics, high sensitivity, strong anti-electromagnetic interference, and long life. It is matched with cable viscose, and the installation speed is fast, realizing dynamic and static strain monitoring. At the same time, connecting two sections of fiber grating through a polymer block can be Improve reliability, reduce optical signal loss, increase signal transmission distance and ensure clear and accurate fiber grating measurement signals. In engineering applications, it can be quickly installed and connected, which is more convenient.

Description

Fabrication method of polymer skin fiber grating strain sensor and smart cable technical field The present invention relates to the technical field of cold-cast anchor cables, in particular to polymer skin wire fiber grating strain sensors, intelligent How to make it. Background technique [0002] Cold cast anchor cables are widely used in bridge construction, especially in cable-stayed bridges, hanger arch bridges and suspension bridges. Application, the cable body currently used by the cold cast anchor is generally composed of 19471 high-strength steel wires with a diameter of C5 or 07mm. Grid finished cable body, also known as parallel wire cable in the industry, the parallel wire cable and cold cast anchors form a complete set of parallel steel Wire cold cast anchor cable is used as the stress component of bridge; [0003] In the prior art, the strain force of the chilled anchor cable in use needs to be measured with a strain sensor, and the general The sensitivi...

AI Technical Summary

Problems solved by technology

[0003] In the prior art, strain sensors are needed to measure the strain force of chilled cast anchor cables in use, but ordinary strain sensors are not sensitive enough, reliable enough, not accurate enough to measure, and not easy to install with steel cables. Therefore, the present invention proposes the manufacturing method of polymer fiber Bragg grating strain sensor, intelligent cable to solve the problems existing in the prior art

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