Ultra-long intelligent composite closed cable and preparation method thereof

• Main Authors: ZHANG ZHIHAO, YANG CHAO, CHEN LIHONG, LIU QIANG, NING YANCHI, WEI QIXING, LAN CHUNGUANG, QIAN LINFENG, MENG YADAN, YANG JIZHOU, MI HONGDAN
• Format: Patent
• Language: Chinese; English
• Published: 16.01.2024
• Subjects: ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVEREDIN A SINGLE OTHER SUBCLASS; ASSEMBLY OF BRIDGES; BUILDING; BUILDING MATERIALS; CONSTRUCTION OF BRIDGES; CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES; FIXED CONSTRUCTIONS; MEASURING; MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR; OR VIADUCTS; PHYSICS; STRUCTURAL ELEMENTS; TARIFF METERING APPARATUS; TESTING

The invention is suitable for the technical field of building bridge structure health monitoring, and provides an ultra-long intelligent composite closed cable, which comprises a sensing rib, a fiber grating sensing element and a sensing rib fiber rib body, the sensing rib is divided into n cable sections along the length direction of the sensing rib, each cable section comprises a sensing section, an isolation area and a connection area, and a measuring point is arranged in the sensing section; the length of the isolation region is not less than 1m, and the length of the connection region is not less than 0.5 m; an insoluble separant is coated on the surface of the fiber bragg grating sensing element within the range of the isolation area; and the outer surface of the fiber rib body within the range of the isolation area is made into a positioning area. In the manufacturing process, the ultra-long intelligent composite closed cable is manufactured firstly, then the multiple intelligent composite closed cable