Polymer strain gauge sensor and intelligent cable manufacturing method

Abstract

The invention discloses a polymer strain gauge sensor and an intelligent cable manufacturing method. The polymer strain gauge sensor comprises a polymer block and a high-temperature strain gauge, a strain gauge groove is formed in the middle position of the macromolecule block; high-temperature strain gauges are adhered to the interiors of the strain gauge grooves through high-temperature glue; the high-temperature strain gauge comprises a substrate and metal sensitive wires, the metal sensitive wires are distributed on the substrate, welding spots are arranged on the two sides of one end of the substrate, one ends of the metal sensitive wires are welded to the welding spots, high-temperature wires are welded to the other ends of the welding spots, and the outer sides of the high-temperature wires are sleeved with shielding sleeves. According to the invention, a specially-made high-molecular strain gauge sensor is pasted on a steel wire to form the intelligent cable; the high-molecularblock of the high-molecular strain gauge sensor is made of polytetrafluoroethylene, so that the high-molecular strain gauge sensor is good in sealing performance, high in lubrication and non-stickiness, good in electric insulativity and aging resistance and excellent in temperature resistance, and can deform under the long-term action of stress, so that the strain force of the intelligent cable can be measured more accurately.

Description

technical field [0001] The invention relates to the technical field of cold cast anchor cables, in particular to a polymer strain gauge sensor and a manufacturing method of an intelligent cable. Background technique [0002] Cold cast anchor cables are widely used in bridge construction, especially in the application of cable-stayed bridges, suspension rod arch bridges and suspension bridges. The cable body currently used by cold cast anchors is generally composed of 19471 high-strength steel wires with a diameter of C5 or 07mm The finished cable bodies of various specifications are also called parallel steel wire cables in the industry. The parallel steel wire cables and cold-cast anchor anchors form a complete set of parallel steel wire cold-cast anchor cables to be used as the stressed parts of bridges; [0003] In the prior art, the strain force of the cold cast anchor cable in use needs to be measured by a strain sensor, while the ordinary strain sensor has relatively h...

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Problems solved by technology

[0003] In the prior art, the strain force of the cold cast anchor cable in use needs to be measured by a strain sensor, while the ordinary strain sensor has relatively hard mechanical properties, is not resistant to low temperature, is easy to become brittle, and is difficult to maintain excellent mechanical properties. The measurement is not accurate enough, therefore, the present invention proposes a polymer strain gauge sensor and a smart cable manufacturing method to solve the problems existing in the prior art

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