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Monitoring system for cable force of magnetic flux sensors and preparation method of monitoring system

A magnetic flux sensor and cable force monitoring technology, applied in the direction of force measurement, bridge parts, bridge construction, etc. by measuring the change of magnetic properties of materials caused by applied stress, can solve the problem that the magnetic flux sensor does not form a reliable protection, the cable measurement range Insufficient and other problems, to achieve the effect of improving the anti-corrosion performance and improving the measurement range

Pending Publication Date: 2019-04-23
GUANGXI UNIV
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  • Abstract
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Problems solved by technology

For example, Patent No. 201220140323.7 discloses a magnetic flux cable force detection device. The magnetic flux sensor is a sensor with excellent performance, which can realize absolute and dynamic strain and temperature measurement, but it is still not enough for the measurement range of the cable, and the adhesive installation The fixing method of the magnetic flux sensor does not form a reliable protection, therefore, it is particularly important to solve this kind of problem

Method used

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  • Monitoring system for cable force of magnetic flux sensors and preparation method of monitoring system
  • Monitoring system for cable force of magnetic flux sensors and preparation method of monitoring system
  • Monitoring system for cable force of magnetic flux sensors and preparation method of monitoring system

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Embodiment Construction

[0031] In order to deepen the understanding of the present invention, the present invention will be further described below in conjunction with the examples, which are only used to explain the present invention, and do not constitute a limitation to the protection scope of the present invention.

[0032] according to figure 1 , 2 , 3, this embodiment provides a magnetic flux sensor cable force monitoring system, including a cable body 1, a magnetic flux sensor 2, a magnetoelastic instrument 3, a switch junction box 4 and an acquisition system 5, and the cable body 1 consists of A number of steel wires are twisted, and an epoxy coating 6, a high-strength polyester tape 7, an inner layer HDPE8, an isolation layer 9 and an outer HDPE10 are arranged on the outside of the steel wire 11 from the inside to the outside; A magnetic flux sensor 2 is arranged on the steel wire, and the magnetic flux sensor 2 is fixed inside the steel wire; anchorages are installed at both ends of the ca...

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Abstract

The invention discloses a monitoring system for a cable force of magnetic flux sensors and a preparation method of the monitoring system. The monitoring system comprises a cable body, the magnetic flux sensors, a magnetoelastic instrument, a switch line concentrating box and a collecting system, wherein the cable body is formed by twisting a plurality of steel wires, and an epoxy coating layer, ahigh-strength polyester belt, inner-layer HDPE (High-Density Polyethylene), an isolating layer and outer side HDPE are sequentially arranged at the outer side of the steel wires from inside to outside; the magnetic flux sensors are distributed on the steel wires arranged on two ends of the cable body; the magnetic flux sensors are fixedly arranged in the steel wires; anchorage devices are arrangedon the two ends of the cable body; transmission signal lines of the magnetic flux sensors are lead out of the cable body; the magnetoelastic instrument is connected with the transmission signal linesof the magnetic flux sensors; the collecting system is connected with the magnetoelastic instrument. The cable force is detected by improving the parallel steel wire cable body and adopting small-bore electromagnetic sensors.

Description

technical field [0001] The invention relates to the technical field of bridge engineering, in particular to a magnetic flux sensor cable force monitoring system and a manufacturing method thereof. Background technique [0002] Parallel wire cables are widely used in bridge engineering, including cables of cable-stayed bridges, suspension cables of arch bridges and suspension bridges, tie rods of arch bridges, etc. The static cable force of cables is an important parameter for cable construction and operation testing. The static stress of the cable is an important index to detect the working state of the cable, and the measurement of these parameters of the cable is more important. [0003] The cable force of the magnetic flux sensor has the advantages of high detection accuracy, good long-term stability, durability, long service life, replaceable, etc., and can automatically compensate for temperature; when used with the matching magnetoelastic instrument, it can perform mul...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01L1/12E01D19/16
CPCG01L1/12E01D19/16
Inventor 邓年春杨阳
Owner GUANGXI UNIV
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