Stress component, fiber grating sensor, intelligent cable and manufacturing method

A force-bearing member, fiber grating technology, applied in the field of sensors, can solve the problems of fiber grating not forming reliable protection, adhesive affecting measurement accuracy, insufficient measurement range, etc., and achieving low stiffness and ultimate strength, stiffness and ultimate strength. Large, strain-sensitive effect

Pending Publication Date: 2018-09-07
GUANGXI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But the bare fiber grating itself is relatively fragile, and the connection is troublesome. If the ordinary bonding installation is used, the fiber grating will not be reliably protected. At the same time, the creep of the adhesive will affect the measurement accuracy. In addition, for the large deformation of the cable, Its measurement range is not enough

Method used

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  • Stress component, fiber grating sensor, intelligent cable and manufacturing method
  • Stress component, fiber grating sensor, intelligent cable and manufacturing method
  • Stress component, fiber grating sensor, intelligent cable and manufacturing method

Examples

Experimental program
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Effect test

Embodiment 1

[0049] This embodiment provides a force-bearing member;

[0050] Such as figure 1 As shown, the force-bearing member in this embodiment includes a measuring section 1 for generating consistent deformation with the measured member. The measuring section 1 is provided with a groove 13 for accommodating a fiber grating, and the groove 13 is along the The member under test extends in the force-bearing direction, and fixing parts for fixing the fiber grating are respectively provided at both ends of the measuring section 1 .

[0051] In the present invention, a groove is provided on the measuring section of the force-bearing member, and the groove extends along the force-bearing direction of the measured member. When the fiber grating is placed in the groove, the groove can position the fiber grating, and the groove The groove increases the contact area between the fiber grating and the measuring section, and cooperates with the fixing parts at both ends of the measuring section t...

Embodiment 2

[0057] This embodiment provides a force-bearing member;

[0058] Such as image 3 As shown, the force-bearing member in this embodiment includes a measuring section 1 for producing consistent deformation with the measured member. The measuring section 1 is provided with a groove 13 for accommodating a fiber grating, and the groove is The force direction of the measuring member is extended, and the two ends of the measuring section are respectively provided with fixing parts for fixing the fiber grating.

[0059] In the present invention, a groove is provided on the measuring section of the force-bearing member, and the groove extends along the force-bearing direction of the measured member. When the fiber grating is placed in the groove, the groove can position the fiber grating, and the groove The groove increases the contact area between the fiber grating and the measuring section, and cooperates with the fixing parts at both ends of the measuring section to fix the pigtail...

Embodiment 3

[0070] This embodiment provides a force-bearing member;

[0071] Such as Figure 4 As shown, the force-bearing member in this embodiment includes a measuring section 1 for producing consistent deformation with the measured member. The measuring section 1 is provided with a groove 13 for accommodating a fiber grating, and the groove is The force direction of the measuring member is extended, and the two ends of the measuring section are respectively provided with fixing parts for fixing the fiber grating.

[0072] In the present invention, a groove is provided on the measuring section of the force-bearing member, and the groove extends along the force-bearing direction of the measured member. When the fiber grating is placed in the groove, the groove can position the fiber grating, and the groove The groove increases the contact area between the fiber grating and the measuring section, and cooperates with the fixing parts at both ends of the measuring section to fix the pigtai...

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PUM

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Abstract

The invention discloses a stress component, a fiber grating sensor, an intelligent cable and a manufacturing method. The stress component comprises a measuring segment used for being deformed same asa to-be-tested component, a groove for containing fiber gratings is formed in the measuring segment and extends in the stress direction of the to-be-tested component, and fixing parts for fixing the fiber gratings are further arranged at both ends of the measuring segment. Since the groove is formed in the measuring segment of the stress component and extends in the stress direction of the to-be-tested component, when the fiber gratings are placed in the groove, the groove can position the fiber gratings; at the same time, the groove increases the contact area between the fiber gratings and the measuring segment, and by combining with the fixing parts at both ends of the measuring segment for fixes pigtails at both ends of the fiber gratings, an integral structure is formed. The stress component facilitates installation and connection of the fiber gratings. Moreover, the fiber gratings can be better protected, and damage of the fiber gratings is avoided.

Description

technical field [0001] The invention relates to the technical field of sensors, in particular to a force-bearing component, a fiber grating sensor, an intelligent cable and a manufacturing method. Background technique [0002] Parallel steel wire and steel strand cables are widely used in bridge engineering, such as cables for cable-stayed bridges, hangers for arch bridges and suspension bridges, tie rods for arch bridges, etc. Since the static cable force of the cable is an important parameter for the construction and operation of the cable, the static stress, dynamic stress and vibration of the cable are important indicators for detecting the working state of the cable, so it is necessary to accurately measure the above parameters of the cable . [0003] Fiber Bragg Grating is a sensor device with excellent performance, which can realize absolute and dynamic strain and temperature measurement, and can be used to measure the relevant parameters of the cable. However, the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01L5/04G01H9/00D07B1/14
CPCG01H9/004G01L5/04D07B1/145D07B2501/203D07B2301/55
Inventor 邓年春
Owner GUANGXI UNIV
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